国家自然科学基金(20072043)

作品数：6被引量：3H指数：1
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相关作者：楼顺天刘小东更多>>
相关机构：西安电子科技大学更多>>
相关期刊：《西安电子科技大学学报》《China Foundry》《Chinese Journal of Chemistry》更多>>
相关主题：MICROSTRUCTURESCANDIUMSPIROKETALANTIFEEDANTANALOGS更多>>
相关领域：一般工业技术金属学及工艺理学电子电信更多>>
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Morphology and microstructure of rapidly solidified tin-lead alloy powders
《China Foundry》2014年第5期428-434,共7页Xiang Qingchun Zhang Wei Qiu Keqiang Qu Yingdong Li Rongde 
supported by the Natural Science Foundation of Liaoning Province (No.20072043)
Sn60Pb40 al oy powders were fabricated using the planar flow casting （PFC） atomization process. By using OM, SEM and EPMA, the characteristics of the morphologies and microstructures of the powders have been investi...
关键词：rapid solidification planar flow casting tin-lead alloy metal powders MICROSTRUCTURE 
Efects of minor amounts of scandium on microstructure and mechanical properties of ZA27 alloy被引量：1
《China Foundry》2013年第5期294-298,共5页Xiang Qingchun Zhang Wei Wang Ruichun Qiu Keqiang Li Rongde 
financially supported by the Natural Science Foundation of Liaoning Province(No:20072043)
The influences of minor amounts of scandium on the microstructure and mechanical properties of as-cast ZA27 alloy have been experimentally investigated. The experimental results show that as far as the Sc addition is ...
关键词：ZA27 alloy SCANDIUM MICROSTRUCTURE mechanical properties heterogeneous nuclei 
Effects of scandium and zirconium combination alloying on as-cast microstructure and mechanical properties of Al-4Cu-1.5Mg alloy
《China Foundry》2011年第1期137-140,共4页Xiang Qingchun Zhao Jing Pan Haicheng Hou Lina Li Rongde 
supported by the Natural Science Foundation of Liaoning Province,China (No.20072043)
The influences of minor scandium and zirconium combination alloying on the as-cast microstructure and mechanical properties of Al-4Cu-1.5Mg alloy have been experimentally investigated.The experimental results show tha...
关键词：Al-Cu-Mg alloy scandium （Sc） zirconium （Zr） combination alloying mechanical properties 
Synthesis and Biological Activity of Tonghaosu Analogs Containing Phenoxy-phenyl Moiety
《Chinese Journal of Chemistry》2004年第9期984-989,共6页陈立 徐汉虹 尹标林 肖春 胡泰山 吴毓林 
the National Natural Science Foundation of China (Nos. 29672083, 20072043), the Chinese Academy of Sciences, the State Ministry of Science and Technology (No. 2000077502), the Shanghai Committee of Science and Technology.
A new series of phenoxy-phenyl moieties containing tonghaosu analogs with varied B-ring 9 were synthesized and characterized by spectral studies. Their insect antifeedant activity against Pieris brassicae and insectic...
关键词：SPIROKETAL ANTIFEEDANT insecticidal activity Pieris brassicae Culex quinquefasciatus 
Study on Tonghaosu and Its Analogs:Isolation,Structure Identification and Synthesis of Antifeedant B-ring-homo-tonghaosu
《Chinese Journal of Chemistry》2004年第1期92-99,共8页陈立 尹标林 徐汉虹 邱明华 吴毓林 
the National Natural Science Foundation of China (Grant Nos. 29672083, 20072043), Chinese Academy of Sciences, the State Ministry of Science and Technology (No. G2000077502), Shanghai Committee of Science and Technology and the
The methanolic extract from a Chinese endemic Chrysanthemum plant, Dendranthema indicum var. aromaticum, was found to show high antifeeding activity against Pieris brassicae L., and by bioassay-guided separation, the ...
关键词：SPIROKETAL B-ring-homo-tonghaosu Dendranthema indicum var. aromaticum Pieris brassicae an-tifeedant 
盲信源分离中信源动态变化的识别被引量：2
《西安电子科技大学学报》2003年第5期598-602,共5页刘小东 楼顺天 
国家自然科学基金资助项目(20072043)
基于独立分量分析(ICA)的盲信源分离技术以及小波包分解技术,提出了根据能量特征向量确定信源数的方法,定义了各输出分量的能量特征,并根据输出分量能量特征向量之间的距离,检测出冗余的输出信号,进而确定出信源数.计算机仿真结果验证...
关键词：独立分量分析 盲信源分离 小波包分解 自然梯度算法 
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