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00368415

于 2013-10-15 发布 文件大小:526KB
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  The Condition Monitoring of Fluid-Filled Taped Cables Employed in Underground Transmission Through Dissolved Gas Analysis

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    说明:  经过二十余年的快速发展, 空间激光通信的研究重心逐渐从高精度ATP分系统向高速 率通信分系统转移 紧密跟踪空间激光通信的国际发展最新动态,从通信带宽和链路功率两个方面, 针对通信发射单元、接收单元和信道特性,分析了提高空间激光通信传输速率的技术难度与途径.分 别阐述了波长1 550 nm、基于EDFA 功放和前放技术,空间相干技术,光偏振复用技术.光波分复用 技术的基本原理、性能指标及关键技术,为高速率空间激光通信提供了技术参考(After more than 20 years the rapid development of space laser communications research center of gravity gradually transferred to the high-speed communication subsystem from the high-precision ATP subsystems closely track the latest developments of the international development of space laser communications, communication bandwidth and link power of two. communications transmitter unit, receiver unit and channel characteristics, technical difficulty and ways to improve the transfer rate of space laser communications. Described wavelength of 550 nm, based on EDFA amplifier and put technology, spatial coherence, optical polarization multiplexing. The basic principles of optical wavelength division multiplexing technology, performance indicators and key technologies, and provide a technical reference for high-rate space laser communications)
    2012-05-31 16:41:40下载
    积分:1
  • cr0
    提出了一种认知无线网络的异构网络融合的研究方案。该方案采用了具有可重构能力的基站设备和多频段多模式终端设备 , 采用复用的方式来达到多频段变换的目的 , 并最终提高无线资源利用效率。以中间件的方式来实现各种通信模式的融合和切换 , 并设计了基站分布式天线 , 来满足更大的负载或更 高的业务质量需求。建立了一个基于软件无线电的终端系统 , 该终端的优点在于其可以工作在多个频段之上 , 并且可以自适应的工作在多种不同模式的网络中。(cognitive wireless networks in)
    2011-09-17 12:37:11下载
    积分:1
  • Palm-Vein-Authentication-System
    Palm Vein Authentication System: A Review by Ishani Sarkar, Farkhod Alisherov, Tai-hoon Kim, and Debnath Bhattacharyya
    2012-12-04 02:28:31下载
    积分:1
  • Control-Strategy
    。归纳和讨论了智能微电网的控制理论,将控制策略划分为电网跟随控制和电 网形成控制两大类,每一类同时又包含了交互式及非交互式控制思想,给出了清晰的定义和判断标准, 并提出智能微电网控制策略未来的发展方向。(Analysis was made to its system configuration and operation characteristics, the control theory of intelligent microgrid summarized and discussed to divide the control strategy into grid-following and grid-forming control two categories, each of which included interactive and non interactive control thinking with clear definition and determinant standard. This paper raised the microgrid control strategy in the future.)
    2012-07-16 21:10:26下载
    积分:1
  • DudaHartToolboxUse
    Duda Hart Tool Box Use manual
    2015-09-30 00:24:04下载
    积分:1
  • cgpscyl
    从GPS产业链动荡看便携式导航技术的发展——相当不错的一篇文章,希望对您有所(From the turmoil in the industry chain to see a portable GPS navigation technology for development- a fairly good article, hope you find this)
    2010-01-28 15:57:23下载
    积分:1
  • VSCF
    变速恒频风力发电技术风力发电具有一些自身所拥有的特点,因此如何提高整个风力发电系统的效率、性能以及其输出电能质量,是当今风力发电研究的重点也是风力发电研究的发展方向。目前已有的风力发电技术主要有四类:定桨距调节技术、变桨距调节技术、主动失速调剂技术、变速恒频技术。因定桨距调节技术产生的时间比较早,并且现在的风力发电系统中不再使用因此不做详细介绍。(VSCF wind power generation technology)
    2012-05-29 15:37:22下载
    积分:1
  • User-Experience-Case-Study
    互联网产品用户体验案例分析,帮助提高用户体验。(Internet product user experience case studies to help improve the user experience.)
    2013-08-20 15:57:34下载
    积分:1
  • 1-s2.0-S0022169411005725-main
    用于活性污泥模型研究,模拟污水处理厂出水指标,用于应用研究(for activated sludge model study,simulate WWTP output result.)
    2012-10-15 10:24:26下载
    积分:1
  • Boltzmann-Modeling-for-Engineers
    工程领域中的格子波尔兹曼方法,很经典的书籍,内含较多的代码(Engineering fields Lattice Boltzmann Method, classic books, containing more code)
    2020-07-04 01:00:01下载
    积分:1
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