POS―MIS前台ER图设计范例，DOC文档。

介绍一种采用半桥电路的开关电源，其输入电压为交流220V±20％，输出电压为直流4～16V，最大电流40A，工作频率50kHz。重点介绍了该电源的设计思想，工作原理及特点。-Introduction of a half-bridge circuit using the switching power supply, the input voltage for AC 220V ± 20, output voltage of DC 4 ~ 16V, maximum current 40A, operating frequency of 50kHz. Focuses on the design of the power of thought, working principle and characteristics.

益勤Zyxel 3G 用户端产品PCB照片-Zyxel 3G CPE internal snapshot

:数字水印技术在数字产品的版权保护中起着非常重要的作用。概括了数字水印技术的现状及其基本原理,并 分析了变换域数字水印算法的优势,详细阐述了DCT 水印嵌入和提取算法的原理和步骤。最后在Matlab 平台下对DCT 数 字水印算法进行了仿真,仿真结果证实了DCT 算法的强健性和鲁棒性。-: digital watermarking technology in the digital copyright protection products played a very important role. Summarized the digital watermarking technology and the status of the basic principles and transform domain analysis of digital watermarking algorithm advantages, elaborate on the DCT watermark embedding and extraction algorithm theory and steps. Finally in Matlab platform for DCT digital watermarking algorithm for the simulation, Simulation results confirmed the DCT are strong and robust.

恒丰瑞克2410开发板的电路板原理图，对做嵌入式硬件设计的朋友有一定的参考价值。-hfrk2410 development board circuit schematics, would be a good reference for those who makes hardware design for embedded system.

线性分组码中标准阵列的进一步改进 很好的论文 可以了解线性分组码的标准阵列解码过程-Linear block codes in the standard array of further improvement of the thesis can be a very good understanding of linear block codes of the standard array decoding process

本系统主要以沈阳黄页业务管理为基本要求，主要功能包括：1. 业务员及业务经理权限的设定。2. 业务员部门的划分。3. 业务员在线录入信息。4. 企业公告版。5. 站内短信留言。-mainly to the system in Shenyang Yellow Pages business management as the basic requirements, main functions include : 1. Clerks and business manager of the authority set. 2. The clerk division. 3. Information online entry clerk. 4. Business bulletin boards. 5. Station SMS messages.

实现基本的图书馆管理功能 附有完整代码及运行界面截图 完整的课程设计报告-To achieve the basic library management features with full code and run the complete course interface design report screenshot

0809AD转换，实现电压模拟值到数字量的转换-0809AD conversion, realizing the value of the analog voltage digital conversion

m128 带音乐的跑马灯-m128 with music Marquee

网站的功能需求分析，可以作为刚入行的新人进行参阅，写的还不错-Site analysis of functional requirements, can be used as new recruits to see, written in good