metasurface

轻型直流输电论文 方便大家进行毕业设计或者引用(HVDC Light for graduation thesis to facilitate the design or quote)

本文致力于研究和开发一种成本低、结构紧凑、操作方便的自动捆扎机。主要工作是根据实际的捆扎工艺，设计了捆扎机的总体结构；然后对捆扎工艺中的关键技术进行了深入研究，设计了机电一体化机构，运用PLC编程来实现控制系统，最终实现捆扎，转动，推箱等动作。本设计为快速方便的实现十字形捆扎提供了一种可靠的装置。( The major work is designing the overall structure of Automatic Strapping Machine according to the actual bind process. Then the key technologies of the labeling are studied, design a mechanism of electromechanical integration, use of PLC programming to achieve control system. Finally, Realize binding, rotating, pushing the carton and other movement. This designed a rapid realization of cross Banding mahchine.)

上海热线ii试验网接入部分方案(上海贝尔有限公司) 毕业设计内参(Shanghai Hotline ii pilot network access part of the program (Shanghai Bell Co. Ltd.) Graduation INCOMPATIBLE)

基于SIMULINK对开关磁阻电机做的仿真工作，内容非常详细。(SIMULINK simulation of switched reluctance motor do the work, the content is very detailed.)

基于ATmega128和CH374的USB接口设计(Design of USB interface based on ATmega128 and CH374)

量子通信的论文集合，都是在同方知网，或者是万方上下载的(The paper collection of quantum communication, are in tongfang hownet, or ten thousand square on download )

说明：  大规模光伏发电并网对互联电力系统阻尼特性的影响及其阻尼控制策略(Influence of Large-Scale PhotoVoItaic System Integration on Danlping Characteristics of Interconnect Grid and Dampjng Control)

学生成绩统计查询系统，有学生、课程、统计、查询、系统说明五个菜单，单击不同的菜单会有子菜单出现。很好的实现管理学生成绩问题。(Student performance statistics query system, students, curriculum, statistics, query, the system shows five menu, click a different menu sub-menu will appear. Achieve good management of student achievement issues.)

在无线通信中使用跳频技术是军事通信中最主要的抗干扰手段之一, 而如果系统中能使用合适的中心频率可以快速跟踪跳频变化的带通滤波器将可以明显改善系统的抗干扰性能。文中从实际应用出发, 比较了几种可用于实现带通滤波器快速变频的方案, 选择了简单、实用的开关电容阵改变带通滤波器中心频率的方案(The use of frequency hopping in wireless communication technology is the most important anti-jamming in military communications, one of the means, and if the system can use the appropriate center frequency can be fast-tracked changes in frequency-hopping band-pass filter will be able to significantly improve the system anti-jamming性能. This paper from the actual application, the comparison of several band-pass filter can be used to achieve the rapid conversion of the program, choose a simple, practical switched capacitor array to change the center frequency of band-pass filter program)

通过软件建立微电网仿真模型，针对微电网从联网到孤岛的过渡过程、从孤岛到联网的过渡过程、微电网孤岛运行模式、以及当光伏电池受到光照强度和温度变化影响时的光伏发电的运行特性进行了仿真分析，仿真结果验证了控制策略的正确性和有效性。搭建了基于的两级式光伏发电系统实验平，光伏发电系统前级电路采用扰动观察法和限功率的扰动观察法分别实现了最大功率点跟踪控制和限功率控制，同时对光伏发电系统后级逆变器运行进行了实验研究。 (Simulation model of micro-grid )