本文主要概述了软件企业项目经理的概念和现状，特别是描述了从一个程序员到普通项目经理再到优秀项目经理中必需的技术能力和管理能力的基本要求。
This paper outlines the concept and status of enterprise software project managers, especially a programmer to describe the general project manager and then to the basic requirements of excellent project manager in the necessary technical skills and management capabilities. (2015-10-22, WORD, 22KB, 下载1次)
这是一封求职信，对于应届毕业生而言，可以起到很好的参考作用！
This is a cover letter, for the new graduates, can have very good reference! (2014-08-28, WORD, 4KB, 下载3次)
MF RC531 是应用于13.56MHz 非接触式通
信中高集成读写卡芯片系列中的一员。该读写卡
芯片系列利用了先进的调制和解调概念，完全集
成了在13.56MHz 下所有类型的被动非接触式通
信方式和协议。芯片管脚兼容MF RC500、MF
RC530 和SL RC400。
MF RC531 支持ISO/IEC14443A/B 的所有层
和MIFARE® 经典协议，以及与该标准兼容的标
准。支持高速MIFARE® 非接触式通信波特率。内部的发送器部分不需要增加有源电路就
能够直接驱动近操作距离的天线（可达100mm）。接收器部分提供一个坚固而有效的解调
和解码电路，用于ISO14443A 兼容的应答器信号。数字部分处理ISO14443A 帧和错误检
测（奇偶＆CRC）。此外，它还支持快速CRYPTO1 加密算法，用于验证MIFARE 系列产
品。与主机通信模式有8 位并行和SPI 模式，用户可根据不同的需求选择不同的模式，这
样给读卡器/终端的设计提供了极大的灵活性。
2.特
MF RC531 is applied to 13.56MHz contactless communication highly integrated chip card reader in a series. The card reader chip series use advanced modulation and demodulation concept completely integrated in all types of passive 13.56MHz contactless communication methods and protocols. Chip pin compatible MF RC500, MF RC530 and the SL RC400. MF RC531 supports all layers ISO/IEC14443A/B and MIFARE Classic protocol, and is compatible with the standard criteria. MIFARE contactless support high-speed communication baud rate. The transmitter does not need to increase the active part of the internal circuit can directly drive the operation of the antenna near distance (up to 100mm). The receiver part provides a robust and effective demodulation and decoding circuitry for ISO14443A compatible transponder signal. The digital part handles ISO14443A framing and error detection (Parity & CRC). In addition, it supports fast CRYPTO1 encryption algorithm used to verify the MIFARE products. Commu (2014-04-25, WORD, 344KB, 下载20次)
系统基于TCP/IP通讯协议，结合Internet将家电、照明、安保、娱乐等设备通过网络集为一体，既实现数据传输的准确无误，又可远程控制，还提供了丰富的网络共享资源及增值服务，布线简单方便，有效降低成本。
系统采用红外无线遥控、GPRS技术，引入人性化理念，赋予用户更多、更智能的操控方式，外观设计高雅、精致、大方。
系统订制灵活，支持在线升级。
System is based on TCP/IP communication protocol, the combination of Internet appliances, lighting, security, entertainment and other equipment through the network set as a whole, not only the accuracy of data transmission, but also the remote control, it also provides a rich network of shared resources and value-added services wiring is simple and convenient, efficient and reduce costs. System uses infrared wireless remote control, GPRS technology, the introduction of the concept of humanity, giving users more and more intelligent control methods, design elegant, refined, and generous. System customized flexible, support online upgrade. (2014-01-11, WORD, 2670KB, 下载7次)
keilc51开发系统基本知识教程
Keil C51系统概述/Keil C51整体结构/Keil C51安装/Keil C51/Keil C51软件使用详解/ Keil C51高级编程
keilc51 development system basics tutorial Keil C51 System Overview/Keil C51 overall structure/Keil C51 installation/Keil C51/Keil C51 software Detailed/Keil C51 high-level programming (2011-11-07, WORD, 33KB, 下载8次)
随着镜面广告牌这一概念的提出，镜面传媒这一广告形式得以迅速地发展。镜面传媒是以镜子或玻璃作为广告发布载体，通过在美容美发厅、娱乐场所、婚纱影楼、酒店、大型购物商场等公众场所的镜子或玻璃表面装设广告发布装置、如静态广告牌或广告播放机，使消费者在闲暇时光里可以长时间关注所展示的广告
With the mirror made the concept of billboards, the advertising media to mirror the rapid development. Mirror mirror or glass as the media is advertising carrier, through the beauty salon, entertainment, wedding photo studio, hotels, shopping malls and other public places in the installation of a mirror or glass surface of the advertising device, such as static billboards or advertising machine, so that consumers can spare time in a long time pay attention to the ads (2011-09-22, WORD, 16KB, 下载5次)
06 07 08电子科技知识竞赛论文，很好的例子，一个温度采集的，有音频输出报警。
06 07 08 e-science and technology contest papers, a good example of a temperature acquisition, there are audio output to the police. (2010-11-16, WORD, 1856KB, 下载12次)
难得的DM9000的中文资料。详细的引脚描述以及内部及寄存器和功能描述。
Rare DM9000 of the Chinese data. A detailed description of the internal and pin registers and functional description. (2009-09-22, WORD, 12KB, 下载66次)
本文结合无线片上系统nRF24E1芯片，构架一种针对中小型餐饮企业的无线点菜系统。
In this paper, a wireless system-on-chip nRF24E1 chips, a framework for small and medium-sized enterprises in food and beverage a la carte system wireless. (2008-05-30, WORD, 562KB, 下载65次)
1、铝电解电容器
2、钽电解电容器（CA）铌电解电容（CN）
1, 2 aluminum electrolytic capacitors, tantalum electrolytic capacitor (CA) Niobium Electrolytic Capacitors (CN) (2007-11-15, WORD, 5KB, 下载4次)
RFC 3119 中文版 A More Loss-Tolerant RTP Payload Format for MP3 Audio (2007-08-16, WORD, 9KB, 下载29次)
http://www.pudn.com/Download/item/id/320143.html
本课题所研究的可存储虚拟示波器定位为低档型，即在性能上只需满足大多场合的基本应用，努力实现小型化，价格尽可能低廉，这样在财力有限的小用户（电子爱好者、小型企业）中能够普及，在大用户的使用中发挥便携性强的优势，与高档示波器配合使用，互相取长补短。
Studied this subject can be stored as a virtual oscilloscope-type low-grade, that is, in terms of performance on most occasions, only to meet the basic application, and strive to realize miniaturization and low prices as much as possible so that limited financial resources to small users (electronic enthusiasts, small enterprises) can be universal, in the use of large users to play a strong advantage of portability, high-end oscilloscope used in conjunction with each other. (2007-07-29, WORD, 632KB, 下载14次)