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技术资料  基于单片机和人体红外线传感器自动关门锁门的装置

入室抢劫事件屡见不鲜,针对此现象进行分析不难发现,造成失窃事件的极大原因是人们慵懒和意识差等不良性格造成习惯性不锁门.本文以STC89C52单片机为基础,设计了一种基于人体红外传感器的自动关门锁门装置,来解决此类问题.The incidents of burglary are so common. It is not difficult to find that the main reason for th ...

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单片机人体红外线传感器

数据结构  Although there has been a lot of AVL tree libraries available now, nearly all of them are meant to w

Although there has been a lot of AVL tree libraries available now, nearly all of them are meant to work in the random access memory(RAM). Some of them do provide some mechanism for dumping the whole tree into a file and loading it back to the memory in order to make data in that tree persistent. It ...

https://www.eeworm.com/dl/654/154678.html

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其他  For solving the following problem: "There is No Free Lunch" Time Limit: 1 Second Memory Limit: 3

For solving the following problem: "There is No Free Lunch" Time Limit: 1 Second Memory Limit: 32768 KB One day, CYJJ found an interesting piece of commercial from newspaper: the Cyber-restaurant was offering a kind of "Lunch Special" which was said that one could "buy one get two for free". That ...

https://www.eeworm.com/dl/534/361748.html

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Limit following solving problem

通讯编程文档  Java has become a confusing world. Five years ago, there were few decisions to make once you start

Java has become a confusing world. Five years ago, there were few decisions to make once you started programming in Java—you used AWT for graphical user interfaces, sockets for network programming, and hacked together everything else you needed. Since then, though, the APIs available for the Jav ...

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confusing decisions become world

技术资料  Linux.Shell脚本攻略

本书通过110多个案例告诉你如何：（1）利用shell命令快速开发常规任务（2）综合应用grep，find，sed和awk等常用命令（3）凭借短短几个命令行从web挖掘数据的shell脚本（4）利用归档工具运行并自动化各种任务（5）理解文件系统，文件类型以及文件管理（6）用shell创建以及维护文件或目录归档，压缩格式和加密技术（7）通过sh ...

https://www.eeworm.com/dl/842594.html

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linux shell脚本

教育系统应用  程序功能： 1 管理员开设课程； 2 学生可以选择课程； 3 学生注册； 4 教师注册； 5 教师给选自己课程的学生给成绩； 6 管理员对学生成绩进行管理； 7 学生能够查询通过密码自己

程序功能： 1 管理员开设课程； 2 学生可以选择课程； 3 学生注册； 4 教师注册； 5 教师给选自己课程的学生给成绩； 6 管理员对学生成绩进行管理； 7 学生能够查询通过密码自己的成绩； cpp9.cpp 主函数控制程序运行 teacher.cpp 教师类 course.cpp 课程类 Administrator.cpp 管理员类 delete_record.cpp 删除记录 save_l ...

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程序查询密码

教育系统应用  一、课程设计题目、内容、要求题目：《学生成绩管理系统》(第二套难度：2) 内容：按要求完成的基础上

一、课程设计题目、内容、要求题目：《学生成绩管理系统》(第二套难度：2) 内容：按要求完成的基础上，增加了输入学号查询学生记录的功能，和错误输入报错功能要求： 1）输入将本班学生的信息（每个学生至少包括学号、姓名、科目成绩（三门）、学分、平均分）。 A．要求编写函数sort对个学生按某个条件（比如某科成绩， ...

https://www.eeworm.com/dl/621/221028.html

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管理系统

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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Communications Physical Security Wireless Layer in

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 ...

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Symbian

技术资料  LCL Filter

Abstract—A higher order passive power filter (LLCL-filter) for the grid-tied inverter is becoming attractive for industrial applications due to the possibility to reduce the cost of the copper and the magnetic material. However, similar to the conventional LCL-filter, the grid-tied inverter is faci ...

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