国家自然科学基金(50025207)

作品数：9被引量：30H指数：3
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相关期刊：《Progress in Natural Science:Materials International》《Science China(Physics,Mechanics & Astronomy)》《Science China(Technological Sciences)》《Science China Chemistry》更多>>
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Electromagnetic behavior of two-dimensional quasi-crystal left-handed materials with dendritic unit
《Chinese Science Bulletin》2008年第4期632-637,共6页ZHOU Xin ZHAO XiaoPeng 
Supported by the National Natural Science Foundation of China (Grant Nos. 50632030 and 50025207);National Basic Research Program of China (Grant No. 2004CB719805);NPU Foundation for Fundamental Research (Grant No. WO18101)
We demonstrated a two-dimensional quasi-crystal dendritic structure model with negative permeability.The microwave transmission and reflection properties of periodic and quasi-crystal dendritic structure mediums with ...
关键词：左手材料 树枝状结构 准晶体 电磁性能 
Effect of defect on the energy distribution inside the left-handed metamaterials
《Progress in Natural Science:Materials International》2006年第11期1227-1230,共4页LUO Chunrong JIE Xiaoyong ZHAO Qian ZHAO Xiaopeng 
Supported by the National Natural Science Foundation for Distinguished Young Scholars (Grant No .50025207) ,the National Natural ScienceFoundation of China (Grant No .50272054) and the Major State Basic Research Development Programof China (Grant No .2004CB719805)
The electromagnetic field energy distribution inside the left-handed metamaterials （LHMs） with or without blank and line defects is firstly investigated. The LHMs consist of an array of periodic unit ceils of copper...
关键词：left-handed metamaterials electromagnetic field energy distribution DEFECT 
Reflection behaviors of negative permeability metamaterials in X-band
《Progress in Natural Science:Materials International》2006年第3期324-327,共4页KANG Lei ZHAO Qian ZHAO Xiaopeng 
Supported by the National Science Fund for Distinguished Young Scholars (Grant No. 50025207)National Natural Science Foundation of China (Grant No. 50272054)the Major State Basic Research Development Program of China (Grant No. 2004CB719805)
We experimentally investigate the reflection behaviors of negative permeability metamaterials （NPMs） consisting of a periodic array of copper hexagonal split ring resonators （SRRs）. Results show that, for the two-...
关键词：negative permeability metamaterials reflection behaviors. 
Electrorheological fluid of kaolinite-based ternary nanocomposite and its properties
《Science China(Technological Sciences)》2005年第5期496-509,共14页WANG Baoxiang ZHAO Xiaopeng YAO Yuan 
This work was supported by the National Natural Science Foundation of China(Grant No.50272054);the National Natural Science Foundation of China for Distinguished Young Scholar(Grant No.50025207);the“863"Foundation(Grant No.2001AA327130).
According to the physical and chemical design, a kind of kaolinite /dimethylsulfoxide/carboxymethyl starch (CMS) ternary nanocomposite was prepared by the two-step composite method. Firstly, the polar liquid-dimethyls...
关键词：ELECTRORHEOLOGICAL fluid  intercalation  TERNARY system  nanocomposite. 
Reflection and phase of left-handed metamaterials at microwave frequencies被引量：3
《Chinese Science Bulletin》2005年第5期395-398,共4页ZHAOQian ZHAOXiaopeng KANGLei ZHENGQing 
supported by the National Natural Science Foundation of China for Distinguished Young Scholar(Grant No.50025207);the National Science Foundation of China(Grant No.50272054);the National Basic Research Program of China under sub-project 2004CB719800..
We experimentally investigated the reflection and phase of the left-handed metamaterials (LHMs) in a rectangular waveguide for the normally incident microwave. The samples are constructed by periodically arraying the ...
关键词：微波频率 微波 介电常数 渗透性 左旋物质 电磁特性 多普勒转换 转换特征 电化学 
Supramolecular complex formation of β-cyclodextrin polymer with substituted salicylic acid or 3-hydroxy-2-naphthoic acid and their electrorheological behaviors被引量：15
《Science China Chemistry》2004年第4期340-348,共9页GAO Ziwei ZHAO Xiaopeng SUN Ping SI Gang 
This work was supported by the National Namral Science Foundation of China(Grant No.59832090);the National Natural Science Foundation of China for Distinguished Young Scholar(Grant No.50025207);the'863'Foundation(Grant No.2001AA327130).
According to the chemical design, electrorheological properties of supramolecular complex from β-cyclodextrin polymer (β -CDP) were discussed. Six supramolecular complexes of β-cyclodextrin polymer with substituted...
关键词：electrorheological fluids β-cyclodextrin crosslinking polymer substituted salicylic acid 3-hydroxy-2-naphthoic acid supramolecular complex 
Optical activity of microemulsion induced by electric field and its tunable behaviors被引量：2
《Science China(Physics,Mechanics & Astronomy)》2003年第2期164-172,共9页赵晓鹏 赵乾 向礼琴 
the National Natural Science Foundation of China(Grant No.59832090);the National Natural Science Foundation of China for Distinguished Young Scholar(Grant No.50025207).
It has been shown that optical activity can occur in microemulsion under external electric field and rotation angle can also be tuned by the electric field. A set of microemulsions (water/Span80/transformer oil) with ...
关键词：SOFT matter  optical activity  microemulsion. 
Adjustable character of microwave attenuation in BaTiO_3 electrorheological fluids被引量：6
《Progress in Natural Science:Materials International》2002年第10期753-758,共6页FAN Jijun ZHAO Xiaopeng HUANG Min GUAN Litao WEN Lishi 
Supported by the National Natural Science Foundation of China (Grant No. 59832090) ;the Natural Science Foundation of China for Distinguished Young Scholars (Grant No. 50025207)
The behavior of microwave attenuation in BaTiO3 electrorheological fluids is studied when considering microwave propagation in the directions perpendicular and parallel to the particle chains, respectively. In the for...
关键词：electrorheological fluids BATIO3 microwave attenuation relaxation effect 
Electrorheological behavior of rare earth-doped barium titanate suspensions被引量：4
《Progress in Natural Science:Materials International》2002年第4期278-283,共6页YIN Jianbo, GUAN Litao and ZHAO Xiaopeng(Institute of Electrorheological Technology, Department of Applied Physics, Northwestern Ploytechnical University, Xi an 710072, China) 
Supported by the National Natural Science Foundation of China (Grant No. 59832090) ; the National Natural Science Foundation of China for Distinguished Young Scholar (Grant No. 50025207)
Doping Y, La, Ce into barium titanate is found to be able to improve its electrorheological (ER) effect in DC electrical field. The yield stress of a typical doped barium titanate/silicone oil suspension is approximat...
关键词：ELECTRORHEOLOGICAL materials  BARIUM titanate  RARE earth  dielectric properties. 
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