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Chinese Academy of Sciences Institutional Repositories Grid
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Sustainable iridescence of cast and shear coatings of cellulose nanocrystals 期刊论文  OAI收割
CARBOHYDRATE POLYMERS, 2021, 卷号: 273, 页码: 10
作者:  
Guo, Mengna;  Li, Yu;  Yan, Xueyi;  Song, Jianing;  Liu, Dagang
  |  收藏  |  浏览/下载:41/0  |  提交时间:2022/06/15
Micro-electro-mechanical systems capacitive ultrasonic transducer with a higher electromechanical coupling coefficient 期刊论文  OAI收割
Micro & Nano Letters, 2015, 卷号: 10, 期号: 10, 页码: 4
作者:  
Miao, J(苗静);  Shen, WJ(沈文江);  He, CD;  Xue, CY;  Xiong, JJ
收藏  |  浏览/下载:86/0  |  提交时间:2015/12/31
silicon  elemental semiconductors  silicon-on-insulator  wafer bonding  electromechanical effects  ultrasonic transducers  capacitive transducers  micromechanical devices  micromachining  vibrations  membranes  finite element analysis  reliability  capacitance  electromechanical coupling coefficient  capacitive micromachined ultrasonic transducer  impedance matching  propagation medium  microelectromechanical system capacitive ultrasonic transducer  silicon on insulator  wafer bonding  optimum geometric dimensions  membrane mechanical vibration  electrical characteristics  finite-element analysis  operation mode  device safety  device reliability  equivalent stress  operation-collapse voltage  bottom electrodes  glass substrate surface  parallel parasitic capacitance  Si  SiO2  
Effect of deposition rate on the DUV/VUV reflectance of MgF2 protected aluminum mirrors with e-beam evaporation (EI CONFERENCE) 会议论文  OAI收割
7th International Conference on Thin Film Physics and Applications, September 24, 2010 - September 27, 2010, Shanghai, China
作者:  
Wang T.-T.;  Gao J.-S.
收藏  |  浏览/下载:29/0  |  提交时间:2013/03/25
The synthesis and field emission property of carbon nanotubes on carbon fibers substrate (EI CONFERENCE) 会议论文  OAI收割
Technical Digest of the 20th International Vacuum Nanoelectronics Conference, IVNC 07, July 8, 2008 - July 12, 2008, Chicago, IL, United states
Leyong Z.; Weibiao W.; Jingqiu L.; Yuxue X.; Da L.; Song C.; Haifeng Z.
收藏  |  浏览/下载:33/0  |  提交时间:2013/03/25
Using ferrocene as catalyst precursor  C2H2 as carbon source  carbon nanotubes (CNTs) with uniform density were synthesized on carbon fibers substrate by floating catalyst method. The morphology and microstructure were characterized by field emission scanning electron microscope (FESEM) and high-resolution transmission electron microscopy (HRTEM). The observation showed that the length of CNTs is about 2 m  the average space between adjacent CNTs is about 300 nm and the diameter of CNT is about 45 nm. The less dense "short and stubby" aligned CNTs films should have good electron field emission characteristics. The results of field emission showed that the emission current of CNTs/carbon fibers was 5 A at the field of 2.5 V/m  and the emission current can be 280 A with a field of 7 V/m (the specimen area is 0.25 cm2 and the distance between cathode and anode is 200 m). The calculation based on the F-N plot indicated that the field enhancement factor of CNTs tip is 499122. Using the conductivity and chemical stability of carbon fibers and the uniform and sparse density distribution of CNTs on carbon fibers substrate  the tip predominance of carbon nanotubes can be exerted  and simultaneously the effect of screening effects between adjacent carbon nanotubes on the field emission performance can also be effectively decreased. The CNTs synthesized on carbon fibers substrate has many predominances for the fabrication of cold cathode devices. For example  using the removability of carbon fibers  the cathode of CNTs/carbon fibers can be arbitrarily moved  enlaced or combined to form different patterns  and the cathode of CNTs/carbon fibers can be also fabricated in large size. Therefore  CNTs/carbon fibers may have potential application in field emission displays.  
Multiscale analysis for interfacial fractures of ductile thin film/ceramic substrate systems 会议论文  OAI收割
11th International Conference on Fracture 2005, ICF11, Turin, Italy, March 20, 2005 - March 25, 2005
作者:  
Wei YG(魏悦广);  Zhao HF;  Shu SQ
收藏  |  浏览/下载:16/0  |  提交时间:2017/06/01
Roles of substrate microorganisms and urease activities in wastewater purification in a constructed wetland system 期刊论文  OAI收割
ECOLOGICAL ENGINEERING, 2003, 卷号: 21, 期号: 2-3, 页码: 191-195
作者:  
Liang, W;  Wu, ZB;  Cheng, SP;  Zhou, QH;  Hu, HY
收藏  |  浏览/下载:99/0  |  提交时间:2010/10/13