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IEEE802.16标准解读,802.16标准为宽带无线接入(BWA)定义了无线城域网(WMAN)的空中接口规范。...
IEEE802.16标准解读,802.16标准为宽带无线接入(BWA)定义了无线城域网(WMAN)的空中接口规范。-IEEE802.16 standard interpretation, 802.16 standards for broadband wireless access (BWA) defines a wireless metropolitan area network 。(WMAN) air interface specification.
- 2022-08-07 09:14:17下载
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哲学家进餐问题是荷兰学者Dijkstra 提出的经典问题之一,它是一个信号量机制问题的应用,在操作系统文化史上具有非常重要的地位。对该问题的剖析有助于学生深刻地...
哲学家进餐问题是荷兰学者Dijkstra 提出的经典问题之一,它是一个信号量机制问题的应用,在操作系统文化史上具有非常重要的地位。对该问题的剖析有助于学生深刻地理解计算机系统中的资源共享、进程同步、死锁等问题,并能熟练地应用信号量来解决生活中的控制流程,即将生活中的控制流程用形式化的方式表达出来。
假设有5个哲学家,他们花费一生中的时光思考和吃饭。这些哲学家共用一个圆桌,每个哲学家都有一把椅子。在桌子中央是一碗通心面,在桌子上放着5只筷子。(如图所示)当一个哲学家思考时,他与其他同事不交互。时而,哲学家会感到饥饿,并试图拿起与他相近的两只筷子(他与邻近左、右之间的筷子)。一个哲学家一次只能拿起一只筷子。显然,他不能从其他哲学家手里拿走筷子。当一个饥饿的哲学家同时有两只筷子时,他就不能不用释放他的筷子而自己吃了。当吃完后,他会放下两只筷子,并再次开始思考。
规定奇数号哲学家先拿他左边的筷子,然后再去拿右边的筷子;而偶数号哲学家则相反。按此规定,将是1、 2号哲学家竞争1号筷子;3、4号哲学家竞争3号筷子。即五位哲学家都先竞争奇数号筷子,获得后,再去竞争偶数号筷子,最后总会有一位哲学家能获得两只筷子而进餐。
-dining philosophers problem is the Netherlands scholars Dijkstra"s one of the classic, It is a signal to the mechanism of application, the operating system in the history of culture has a very important position. Analysis of the problem to help students understand deeply the computer system resource sharing, process synchronization, and other issues Deadlock, skilled and can be applied to solve the signal volume life of the control flow, about the life of the control flow w
- 2022-02-12 04:28:55下载
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mini2440基本文件文件
Mini2440 esential documents files
- 2022-03-10 22:20:08下载
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seeking maze exports from the entrance to the path of all the procedures for a c...
求迷宫中从入口到出口的所有路径是一个经典的程序设计问题。由于计算机解迷宫室,通常用的是“穷举求解”的方法,即从入口出发,顺某一方向向前探索,若能走通,则继续往前走;否则沿原路退回,换一个方向在继续探索,直到所有可能的通路都探索到为止。为了保证在任何位置上都能沿原路返回,显然需要用一个后进先出的结构来保存从入口到当前位置的路径。因此,在球迷宫通路的算法中应用“栈”也就是自然而然的事了。 -seeking maze exports from the entrance to the path of all the procedures for a classic design problem. The computer maze room, normally used was "exhaustive solution" approach, that is, from the entrance, with a direction to explore, if we can follow links, will continue to move forward; Otherwise, return along the same route, a direction for the continued exploration and until all possible pathway to date has explored. To ensure that in any position along the same route can return, obviously need a last-in, first-out to preserve the structure from the entrance of the current location of the path. Therefore, in the Palace fans access algorithm application "stack" is naturally a thing of the past.
- 2022-06-15 15:18:08下载
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用VB编写网络寻呼。提起ICQ的大名,爱好电脑的朋友一定不会感到陌生的吧?ICQ就是互联网上的寻呼机,无论什么时候,只要你的朋友在线,你只需在ICQ中输入他的I...
用VB编写网络寻呼。提起ICQ的大名,爱好电脑的朋友一定不会感到陌生的吧?ICQ就是互联网上的寻呼机,无论什么时候,只要你的朋友在线,你只需在ICQ中输入他的ID号码,你就可以在互联网上呼到他。ICQ由于其方便、快捷,且拥有众多的注册用户而一举成为互联网上最流行的网络寻呼机,它几乎成为每一个上网用户的必备之物。当你在使用ICQ的时候,是否会想过自己动手编写一个网络寻呼机呢?这其实在VB中就可以实现。
-VB prepared with paging network. ICQ filed name, computer-loving friends will not feel strange, right? ICQ pager is on the Internet, no matter when, as long as your friends online, you can simply enter ICQ his ID number, you can call on the Internet to him. ICQ because of its convenient, fast and has a large number of registered users and became the Internet
- 2022-02-07 22:17:48下载
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carefully collated dedication to vomit blood contents include : software archite...
精心整理,吐血奉献
内容包括:论软件架构师的角色和培养:任职资格 1
C语言嵌入式系统编程修炼之背景篇 3
C语言嵌入式系统编程修炼之软件架构篇 6
C语言嵌入式系统编程修炼之性能优化 12
C语言嵌入式系统编程修炼之键盘操作 16
C语言嵌入式系统编程修炼之内存操作 19
C语言嵌入式系统编程修炼之屏幕操作 26-carefully collated dedication to vomit blood contents include : software architect and the role of culture : qualification of a C programming language embedded systems practicing Background Part 3 C programming language embedded system software architecture exercises of Part six C programming language embedded system performance optimization exercises of 12 C programming language embedded system operated keyboard exercises of 16 C Embedded Systems Programming Language practicing Memory 19 operating system embedded C programming language exercises of the screen to operate 26
- 2022-09-19 16:55:03下载
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这是一个关于使用VISIO创建数据库流图的例子,同样是针对上面的教师工资信息管理系统。所以,二者结合使用,是一个很好的组合。...
这是一个关于使用VISIO创建数据库流图的例子,同样是针对上面的教师工资信息管理系统。所以,二者结合使用,是一个很好的组合。-This is on the use of a database created VISIO flow diagram examples above are directed at the teacher wage information management systems. Therefore, the use of a combination of both, is a good combination.
- 2022-10-31 16:10:03下载
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停车场管理系统
资源描述停车场管理系统
- 2023-03-13 12:20:04下载
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DTSD8800、DSSD8800 型三相电子式多功能电能表说明书
DTSD8800、DSSD8800 型三相电子式多功能电能表说明书
- 2022-07-20 07:29:44下载
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本书是一本介绍面向对象软件系统设计的书,从组织结构上分为两大部分:面向对象的概念与UML概述、面向对象系统设计。第一部分是基础,第二部分是核心。...
本书是一本介绍面向对象软件系统设计的书,从组织结构上分为两大部分:面向对象的概念与UML概述、面向对象系统设计。第一部分是基础,第二部分是核心。-the book is an introduction of object-oriented software systems design, organizational structure is divided into two parts : the object-oriented concepts and outlines UML, object-oriented system design. The first part is the foundation, the second part is the core.
- 2023-06-17 00:00:04下载
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