VB技术介绍电子文档

一种基于FPGA的电磁理疗仪，可以根据需要选择可变的随机频率-electromagnetic physiatrics instrument

学生信息管理系统设计 学生信息包括：学号，姓名，年龄，性别，出生年月，地址，电话，E-mail等。提供以下功能： 1、系统以菜单方式工作 2、学生信息录入功能（学生信息用文件保存）－－输入 3、学生信息浏览功能－－输出 4、学生信息查询功能－－算法，按学号、姓名等查询 5、学生信息的删除与修改 -Student Information Management System Design Student Information includes: Student ID, name, age, gender, date of birth, address, telephone, E-mail and so on. Provides the following features: 1, the system in order to work the way the menu 2, student information input function (Student Information used to save the file)- Input 3, student information browsing- Output 4, student information query functions- algorithms, according to study number, name, etc. Search 5, deletion and modifications Student Information

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

一个功能全面的OA功能设计方案，包括日常所用的多方面业务！-a full-featured OA functional design programs, including day-to-day use of various business!

详细讲解了sdram的工作原理和时序问题，对于用到sdram的开发人员很有帮助-Detailed account of the working principle of SDRAM and timing issues, for the developers to use SDRAM helpful

无线报警系统的设计-Wireless Alarm System Design

介绍了一种简洁可靠的嵌入式以太网接口设计-Introduce a simple and reliable embedded Ethernet Interface Design

对LTE中的差错控制方法HARQ的类型和算法仿真进行了介绍，并对物理层的HARQ与上层的交互过程进行了介绍-Of LTE in the HARQ error control methods and algorithms of the type of simulation to carry out the introduction of the physical layer and the top of the HARQ process of interactive introduction

PPP挑战握手认证协议(CHAP)，PPP【1】提供了点到点链路传输多协议数据报的标准方法。 在PPP中也定义了一种可扩展的LCP，允许协商认证协议，从而可以在进行网络层 协议传输之前对对端进行认证。 本文定义了一种PPP认证方法，该方法利用随机“挑战”和依据“挑战”和密钥 计算出的加密哈希“应答”来完成认证。 -PPP Challenge Handshake Authentication Protocol (CHAP), PPP [1] provides a point-to-point link multi-protocol data transmission of standard methods. In PPP also defines a scalable LCP to allow consultations authentication protocol, thereby conducting transmission network layer protocol before the end-to-end authentication. This paper defines a PPP authentication methods, The method using random "challenge" and the basis for "challenge" and calculated key encryption Hash "responsive" to complete certification.

一种利用SPC3实现PROFIBUS-DP和modbus通讯的方法。-Achieved by means of a SPC3 PROFIBUS-DP and modbus communication methods.