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浏览/检索结果: 共7条,第1-7条 帮助

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Bimetallic MOF-derived composites with broad electromagnetic wave absorption and strong corrosion resistance 期刊论文  OAI收割
CARBON, 2023, 卷号: 208, 页码: 33-42
作者:  
Xie, Tianwen;  Li, Shuaizhen;  Ma, Lin;  Li, Jian;  Pang, Shengyang
  |  收藏  |  浏览/下载:21/0  |  提交时间:2024/01/08
Metal-organic framework-derived Co/C composite with high magnetization as broadband electromagnetic wave absorber 期刊论文  OAI收割
JOURNAL OF ALLOYS AND COMPOUNDS, 2022, 卷号: 906, 页码: 9
作者:  
Ma, Lin;  Li, Shuaizhen;  Liu, Fuchun;  Ma, Song;  Han, En-Hou
  |  收藏  |  浏览/下载:60/0  |  提交时间:2022/07/01
Large-scale synthesis and excellent microwave absorption of highly-dispersed Fe nanoparticles via RF thermal plasma 期刊论文  OAI收割
MATERIALS RESEARCH EXPRESS, 2018, 卷号: 5, 期号: 8
作者:  
Wei, GK;  Jin, HC;  Zhang, H;  Liu, XT;  Qiao, L
  |  收藏  |  浏览/下载:49/0  |  提交时间:2018/12/29
Pilot study on wideband sound absorber obtained by adopting a serial parallel coupling manner 期刊论文  OAI收割
APPLIED ACOUSTICS, 2017, 卷号: 124, 期号: 无, 页码: 48-51
作者:  
Qian, Y. J.;  Zhang, J.;  Sun, N.;  Kong, D. Y.;  Zhang, X. X.
收藏  |  浏览/下载:66/0  |  提交时间:2018/05/25
Physical layer design for free space optical communication (EI CONFERENCE) 会议论文  OAI收割
2012 International Conference on Control Engineering and Communication Technology, ICCECT 2012, December 7, 2012 - December 9, 2012, Shenyang, Liaoning, China
作者:  
Wang H.;  Zhang Q.;  Guo J.;  Guo J.;  Wang H.
收藏  |  浏览/下载:38/0  |  提交时间:2013/03/25
A small size Free Space Optical Communication System is introduced  including the hardware and the hardware specified physical layer protocol. In detail  the rapid synchronization method to reduce the handshake bandwidth requirement is demonstrated. The hardware of the system includes the laser driver system  the signal amplifying and shaping system  the data interface system. The hardware specified physical layer protocol is used to interface the outer data  serialize and deserialize the data stream  check transmission errors and schedule the data transmission. The overall system is a FIFO-like system and the user can use it as if he's operating a FIFO. The system is designed mainly for terrestrial FSO link whose signal channel is the atmosphere. Due to the complex composition and activity of the atmosphere  this signal channel brings in great influence on the transmitting laser in it  for example  the absorption and scattering of the atmosphere molecules and aerosols  the scintillation of received laser power caused by the turbulence of the atmosphere  all of which results in a much higher Bit Error Rate (BER) of the communication system than wired communication systems leading to frequent resynchronization. In our system  the sampling clock is generated locally using multi-phase sampling technique rather than PLLbased clock recovery  which helps to rapid synchronization. 2012 IEEE.  
Influence of Mode Q Factor and Absorption Loss on Dynamical Characteristics for Semiconductor Microcavity Lasers by Rate Equation Analysis 期刊论文  OAI收割
ieee journal of quantum electronics, 2011, 卷号: 47, 期号: 12, 页码: 1519-1525
Lv, XM; Zou, LX; Huang, YZ; Yang, YD; Xiao, JL; Yao, QF; Lin, JD
收藏  |  浏览/下载:35/0  |  提交时间:2012/02/06
Packaging technology of polymer/Si arrayed waveguide grating and their environmental stability (EI CONFERENCE) 会议论文  OAI收割
2005 6th International Conference on Electronics Packaging Technology, August 30, 2005 - September 2, 2005, Dameisha, Shenzhen, China
作者:  
Zhang Y.;  Zhang X.;  Zhang X.;  Zhang X.;  Wang F.
收藏  |  浏览/下载:37/0  |  提交时间:2013/03/25
Future optical communication systems will use more of the exceptional high bandwidth of optical fiber. Wavelength division multiplexing (WDM) systems are well suited to transport terabits of information via the fiber[1]. Multiplexers/ demultiplexers (MUX/DEMUX) are essential components for dense WDM systems. Several different kinds of multiplexer types have been developed in the past: (a) interference filters  (b) fiber gratings  and (c) planar lightwave circuit (PLC) MUX/DEMUXers[2  3]. The planar fabrication process of the last mentioned PLCs allows the realization of high performance filters with a large number of wavelength channels. Further  an integration with other optical elements seems to be possible. Arrayed waveguide gratings (AWG) are a special kind of PLC-MUX/DEMUXers  which are very attractive components for WDM systems because of their great flexibility in filter design[4  5]. Basically  an AWG is an optical spectrograph built in planar waveguide technique. Typically  AWGs works in a high grating order (50-250). For AWG multiplexer applications in communications systems a precise wavelength controllability and wavelength stability with long term is demanded. Recently  a polymeric (especially fluorinated polymer with low optical absorption loss in the infrared region) AWG has attracted much attention because of its easy fabrication  low cost possibility and a potential of integration with other polymer devices[6]. Standard AWGs  however  show a change of center wavelength with temperature. A method to prevent this temperature drift is to package the AWG together with a temperature controller in order to tune and fix the desired filter-wavelength. In this paper  a 32-channel AWG was fabricated using a cross-linkable fluorinated poly (ether ether ketone) (FPEEK)  its package technology and environmental stability were also discussed. 2005 IEEE.