异步电机控制系统（变频调速）频率测量的基本方法…

上海杰得 Z228_Software_Programming_Guide-On a Z228_Software_Programming_Guide Haijie

本“网上考试系统”是为了配合网上教学，实现网络学校一体化而设计的。设计本系统要熟悉掌握数据库的编辑和应用，并能与网络相结合。 本“网上考试系统”是基于微软的FrontPage和Access数据库来实现的。主要采用HTML语言来编写，设计过程中还应用到ASP语言。全文共分为系统分析、系统概述、设计过程、用户说明、 结束语、参考文献。本文详细阐述了系统分析、系统设计的方法及其内容，对如何使用ASP开发本系统作了较为详细的介绍。本系统以网页的方式对数据库进行调用，系统应用简单明了，考生可以轻松查看数据库，操作员也可以对数据库进行添加、删除、修改等操作。 关键词:网上考试系统，数据库，网页语言 -the "online examination system" is in line with the on-line teaching, the network integration of the school design. Design of the system to the mastery of the editing and database applications, and can combine with the network. The "online examination system" is based on Microsoft"s FrontPage and Access database to achieve. HTML language used mainly to prepare, the design process is also applied to the ASP language. There transcript analysis, the system outlined, design process, users that conclusion, references. The paper presents a systematic analysis, system design methods and their contents ASP on how to use the system was the development of a more detai

很辛苦才画出来的一个开关电源原理图，protel 99 se上的。印刷出来能工作-How much could draw out a switching power supply schematic, protel 99 se on. Printing can work out

一个很好的图书管理系统，值得一看，好好研究一下吧-a good library management system, an eye-catcher, look carefully at it

图书管理 1.将各个项目子目录拷贝到硬盘上，然后可以用Visual Basic打开程序。 2.在每个项目子目录里面的sql目录里，将后缀.sql的文件打开后，拷贝到SQL Server 2000的查询分析器里。然后执行将产生需要的数据库结构。-management of a library. All projects will subdirectory copy to the hard drive, which can then be opened in Visual Basic procedures. 2. Each item inside the subdirectory sql directory of extensions. Sql open the document, copies of SQL Server 2000 inquiries analyzer Lane. Then needs arising from the implementation of the database structure.

关于ADSL的系统协议结构以及VOIP语音通话的处理线路.-Agreement on the structure of ADSL systems and VOIP voice processing lines.

用jbuilder开发的在线书店源码.前台用户页面的功能:注册,浏览,下订单,取消订单等.后台管理员的功能:更新图书库,处理订单,添加或注销用户.- On-line bookstore source code develops which with jbuilder Onstage user page function: The registration, the browsing, gets down the order form, the cancel order and so on Backstage manager s function: The renewal chart book stacks, the processing order form, the increase or cancels the user

比较成熟的数字电视的COFDM解调电路设计参考-More mature digital TV COFDM demodulator circuit design reference

Audio Frequency Noise Generator

ARM7嵌入式经典程序调试，很适合ARM初学者学习，欢迎下载交流。-ARM7 Embedded classic program debugging, it is suitable for beginners to learn ARM are welcome to download the exchange.