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Sensor array calibration for uniform rectangular array in presence of mutual coupling and sensor gain-and-phase errorsWANG Ding(王鼎), YAO Hui(姚晖), WU Ying(吴瑛) (Institute of Information System Engineering, PLA Information Engineering University, Zhengzhou 450002, China)Abstract:The sensor array calibration methods tailored to uniform rectangular array (URA) in the presence of mutual coupling......
CO2 gas sensors based on Yb1-xCaxFeO3 nanocrystalline powders张盼盼1,秦宏伟2,张恒2,吕伟1,胡季帆21. School of Chemistry and Chemical Engineering, Shandong University2. School of Physics, State Key Laboratory... the method of quantitative analysis to research the gas-sensitive properties for Yb1-xCaxFeO3 to CO2. Also, we investigated the effects of various factors on gas sensing properties by simple variable method......
CO2 gas sensors based on Yb1-xCaxFeO3 nanocrystalline powders张盼盼1,秦宏伟2,张恒2,吕伟1,胡季帆21. School of Chemistry and Chemical Engineering, Shandong University2. School of Physics, State Key Laboratory... the method of quantitative analysis to research the gas-sensitive properties for Yb1-xCaxFeO3 to CO2. Also, we investigated the effects of various factors on gas sensing properties by simple variable method......
Optimising Gas Quenching Technology through Modelling of Heat Transfer Qingfei Zhang1,Aymeric Goldsteinas2,Xavier Doussot2,Florent Chaffotte3,Didier Domergue3,Linda L4 (1.Air Liquide Shanghai Co., Ltd, Shanghai, PR China;2.ECM Service, Fontaine, France;3.e;4.e)fevre(e) 摘要:Gas Quenching represents an environmentally friendly alternative to more commonly-used oil quenching. Yet,the performances......
performance was measured using a gas-sensor analysis system. The results show that the as-prepared products consist of hexagonal wurtzite ZnO, face-centered cubic gold nanoparticles and orthorhombic Fe2O3... in acetone detecting and administrating field. Key words: zinc oxide; ferric oxide; gold; acetone sensor; ethanol sensor 1 Introduction Gas sensitivity, as a typical application in detecting and monitoring......
Key-insulated encryption based group key management for wireless sensor networkQIU Wei-dong(邱卫东)1, ZHOU Yao-wei(周耀伟)1, ZHU Bo(朱博)2, ZHENG Yan-fei(郑燕飞)1, GONG Zheng(龚征)3(1. School of Information... Science, South China Normal University, Guangzhou 510631, China)Abstract:The key exposure problem is a practical threat for many security applications. In wireless sensor networks (WSNs), keys could......
Electrical Conductivity and Sensitive Characteristics of Ag-Added BaTiO3-CuO Mixed Oxide for CO2 Gas SensingA.M.El-Sayed,F.M.Ismail,S.M.YakoutInorganic Chemistry Department,National Research Centre,Tahrir Street,Dokki P.C.12622 Cairo,Egypt摘 要:Carbon dioxide gas sensors based on BaTiO3-CuO composite with different concentrations of Ag addition(1,1.5......
J. Cent. South Univ. Technol. (2008) 15: 392-398 DOI: 10.1007/s11771-008-0074-z Hash-area-based data dissemination protocol in wireless sensor networks WANG Tian(王 田)1, 2, WANG Guo-jun(王国军)1... sensor networks. Using a Hash function which uses time as the key, both mobile sinks and sensors can determine the same Hash area. The sensors can send the information about the events......
-efficient target tracking protocol in wireless sensor networks BHUIYAN M. Z. A., WANG Guo-jun(王国军), ZHANG Li(张力), PENG Yong(彭勇) School of Information Science and Engineering, Central South University...; Abstract: A prediction based energy-efficient target tracking protocol in wireless sensor networks (PET) was proposed......
Synthesis, Characterization and Gas Sensing Properties of Graphene Oxide-Multiwalled Carbon Nanotube CompositeT.Kavinkumar,S.Manivannan摘 要:Graphene oxide... and ultraviolet-visible near infrared spectroscopy techniques. Spectral characteristics of cladding modi?ed ?ber optic gas sensors were studied for various concentrations of ammonia,ethanol......