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Install-Oracle11.1.6-on-RedHat5
Oracle的安装是一项比较复杂的工作,本文提供了清晰的操作步骤(A guide directing you to install Oracle on RedHat 5)
- 2012-03-06 17:26:05下载
- 积分:1
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Photoshop-CS4
简单易懂的photoshop学习书籍,欢迎大家下载,适合初学者学习(photoshop study,welcome to download)
- 2011-12-21 13:52:11下载
- 积分:1
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VMware_backup
虚拟机备份指南,资料供大家分享,管理服务器必备资料。(Virtual Machine Backup Guide, information for everyone to share
)
- 2012-05-15 09:53:04下载
- 积分:1
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map
绘制发动机map图,教你如何绘制发动机map图,快速掌握,提升绩效(Draw engine map from scratch until solution)
- 2021-04-19 18:28:51下载
- 积分:1
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windpower
讲解了变桨距风力发电机组的相关知识,包括其特点、运行控制系统及功率控制等。华北电力大学课堂使用的PPT。(On the variable pitch wind turbine related knowledge,the characteristics, operation control and power control. North China Electric Power University class using ppt.)
- 2011-12-26 18:33:27下载
- 积分:1
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2013-electronic-design-title
2013年全国大学生电子设计大赛题目汇总
1.A到G为本科组题目
2.J,K,L为专科组题目
(The 2013 national undergraduate electronic design contest title
1. A to G for undergraduate group of subjects
2. J, K, L for specialty group of subjects
)
- 2013-09-04 21:25:51下载
- 积分:1
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TroubleshootingGuide851
包含所有informatica powercenter的错误信息以及排错方法(Contains all the informatica powercenter error messages and troubleshooting techniques)
- 2013-07-22 12:37:09下载
- 积分:1
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Low_Voltage_Through_PPT
说明: 池永宁的低压穿越PPT,介绍了各个国家对风电场低压穿越的要求,以及为什么要就风电场具有低压穿越的能力。(The PPT of Low Voltage Through)
- 2010-04-04 19:56:46下载
- 积分:1
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dc-dv-library
mentor wg 2004 dc-dv介绍了从库,原理图到PCB板的详细过程,这个是个教程,以后会加入自己所做的库,共大家学习下载(mentor wg 2004 dc-dv introduction from the library, to the PCB board schematic details of the process, this is a tutorial will be added later for his own library, a total of U.S. Learning Download)
- 2008-07-27 14:07:53下载
- 积分:1
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5
说明: 目前牵引变压器差动保护原理在某些因素的影响下并不能准确地区分变压器内部故障和外部故障,可能造成保护误动或拒动,危及电气化铁道系统的安全运行。针对这一现状,建立了计及铁芯非线性特性和磁滞效应而又无需铁芯的B-H曲线数据的牵引变压器模型,提出了一种通过参数辩识理论来辩识牵引变压器绕组参数实现牵引变压器微型机保护的方法。该方法能有效地区分内部故障、外部故障和励磁涌流。仿真计算表明了该方法的正确性和可行性。(Traction transformer differential protection principle in the safe operation and can not accurately distinguish between the transformer internal faults and external faults, may be to cause protection mistaken or refuse to move, endangering the electrified railway system under the influence of certain factors. In response to this situation, taking into account the core nonlinear characteristics and hysteresis and without traction transformer core of the B-H curve data model, a the traction transformer winding identification through parameter identification theory parameters to achieve traction transformer microcomputer protection. This method can effectively distinguish internal faults, external faults and magnetizing inrush current. The simulation results show that the correctness and feasibility of the method.)
- 2012-09-13 21:57:34下载
- 积分:1