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    题名 作者 年代 出处 被引量
1In-flight observations of electromagnetic interferences emitted by satellite显示文摘Using the data from STAFF/TC-1, this paper for the first time analyzes the electromagnetic interferences of Chinese scientific satellite. The electromagnetic interference of satellite exists mainly below 30 Hz, but can extend to 190 Hz with an obviously decreasing power spectral density. The electromagnetic interferences at frequencies below 190 Hz have good correlation with the solar aspect angle. The electromagnetic interferences at frequencies between 190 and 830 Hz have also correlation with solar as-pect angle. However, the electromagnetic interferences at frequencies above 830 Hz have no correlation with the solar aspect angle. The correlation coefficient between solar aspect angel and electromagnetic interferences is around 0.90. The larger the solar aspect angle, the stronger the satellite electromagnetic interference. When the solar aspect angle increases from 90.6° to 93.6°, the electromagnetic interferences at frequencies <10 Hz increase by 8 times and those at frequencies 190―830 Hz increase by 60%. This close association of electromagnetic interferences with the solar aspect angle indicates that the solar aspect angle is the main factor to determine the electromagnetic interferences. The electromagnetic interferences of satellite in sunlight are larger than those in eclipse. The electro-magnetic interference produced by solar panel occupies about 87% in the low frequency band (<100 Hz) and 94% in the high frequency band (>100 Hz) of the total electromagnetic interference produced by satellite. These in flight observations of electromagnetic radiation of satellites will be very helpful to the designs of future satellites of space sciences or earthquake sciences.CAO JinBin YANG JunYing YUAN ShiGan SHEN XuHui LIU YuanMo YAN ChunXiao LI WenZhen CHEN Tao 2009Science China(Technological Sciences)2009,52,7:4
2The Microstructure and Properties of Alumina—Rich Spinel and Its Products显示文摘The paper describes the effect of chemical composition on the microstructure and properties of spinel specimens synthesized from bauxite and magnesite,The alumina-rich spinel with higher ratio of Al2O3/MgO,with smaller spinel grain,contains more titaniferous mineral and silicate phase compared to the spinel with lower Al2O3/MgO ratio.In the products obtained from alumina-rich spinel and magnesite clinker,the ratio of Al2O3/MgO of spinel decreases,ti-taniferous mineral and silicate phase in the spinel aggregate are changed,and its content tends to degradation,contrasted with original alumina-rich spinel,The products have good high temperature properties.SHIGan SUNGeng-chen 1995China's Refractories1995,4,1:1
3Double-antigen sandwich ELISA for the detection of anti-hepatitis C virus antibodies显示文摘Jing He Bingshui Xiu Guohua Wang Kun Chen Xiaoyan Feng Xiaoguo Song Cuixia Zhu Shigan Ling Heqiu Zhang 2010Journal of Virological Methods2010,,1:1
4Early and long-term result of cardiovascular surgery in octogenarians显示文摘Shigan itsu O Hadana T M iyanoto S 2001Ann Thorac Cardiovasc Surg2001,7,4:1
5Avian influenza virus and Newcastle disease virus (NDV) surveillance in commercial breeding farm in China and the characterization of Class I NDV isolates显示文摘Beixia Hu Yanyan Huang Yefeng He Chuantian Xu Xishan Lu Wei Zhang Bin Meng Shigan Yan Xiumei Zhang 2010Veterinary Microbiology2010,,1:1
6Particle morphology and NMR structure of polymethylmethacrylate / polystyrene emulsifier - free core - shell cationic latices in the presence of DBMEA显示文摘ZHANG J Z LI X Q CHAI SHIGAN 2005Journal of Applied Polymer Science2005,97,4:1
7Particle morphology and NMR structure of polymethylmethacrylate/polystyrene emulsifierfree core-shell cationic latices in the presence of DBMEA显示文摘ZHANG J Z LI X Q Chai Shigan 2005Journal of Applied Polymer Science2005,97,4:1
8Application of aerial remote sensing in the study on vegetation in Guangzhou显示文摘籘his paper showed the study on the vegetation in an 820km ̄2 area in Guangzhou to make vegetation classification with aerial remote sensing images。Based on the synthetic reflection of the mutually dependent relationship between vegetation and environment iChen Shijie He Shigan Yang Jielin Wang Liangping (Department of Geography,Guangzhou Normal College,Guanezhou 510400,China) 1995Journal of Environmental Sciences1995,7,1:0
9Synthetic Raw Materials for Refractories in China显示文摘The development and status of synthetic raw materials for refractories in China are reviewed,including magne-site-based materials,alumina ,ullite,calcium alumi-nate cement ,ultrafine powder,spinel,silicon carbide and cordierite.The research work on calcium zirconate and sialon materials are also introduced.SHIGan YUEWeidong 2001China's Refractories2001,10,2:0
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