2DPSK调制解调系统设计
ABSTRACTBinary differential phase shift keying modulation is relatively short two-phase,denoted by 2DPSK.It is one of the most commonly used modulation in datacommunications,this a...
3D打印机结构设计
Abstract3D printing technology is a rapid prototyping technology.which has entered astage of rapid development during the past few years.The world has made a greatprogress and has ...
CA6140溜板箱加工工艺及工装设计
本科论文摘要CA6140型车床是车床中使用最广泛的一种四，它具有以下特点：机床刚性好，抗振性能好，可进行高速强力切削和重载荷切削：机床操纵手柄集中，安排合理，是工人操作最频繁的部件；机床...
65吨小型冷库设计
The design of a 65 ton cold storageAbstractThe location of this design is Zhuhai City,the design of a 65-ton small coldstorage It is for the storage of fresh fruit and vegetable pr...
3D打印设备机械机构设计
目录第1章绪论21.1课题研究的背景和意义…21.23D打印机的分类与基本原理分析31.2.13D打印机的分类..31.2.2基于FDM技术的3D打印机的工作原理.71.3基于FDM技术的3D打印机国内外研究现状.91.3.1国...
30kw风力发电机效能提升方法研究
Research On The Efficiency Improvement Method Of30KW Wind Turbine[Abstract]Wind power has gradually become an important component inthe current power generation system.Through more...
220kV输电线路反击故障分析及防雷保护研究
AbstractLightning disaster seriously affects people's normal life,from the damage offacilities to the occurrence of large-scale blackout accidents,so the prevention oflightning dis...
Q460实验钢的控轧控冷工艺
或固有缺陷构成的[5]。对管道的外层装涂以及电化学保护是提升埋地管道抗腐蚀性的主要方法。但是，这个方法通常存在一个缺陷一如果涂层装涂不当或与管道不适配，那么电化学保护层的防护能力就会...
QT400前轴承座上半铸造工艺设计
AbstractThe main function of the upper half of the front bearing seat is to maintain the position ofthe bearing,as a support for the load,to prevent external material from invading...
TA0Q235异种金属的等离子焊接工艺研究
魏氏体组织和珠光体组织。铜与钢的结合界面出现平面结晶带，钛铜结合界面边界附近区域颗粒的尺寸偏小，但密度较大，外部的颗粒尺寸较大且分布稀疏通过对模拟温度场发现，等离子焊过程中温度上升...
