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| 1 | Preparation and Mechanical Properties of-SiC Nanoparticle Reinforced Aluminum Matrix Composite by a Multi-step Powder Metallurgy Process显示文摘β-SiC nanoparticle reinforced Al matrix(nano-SiCp/Al) composite was prepared by a multi- step powder metallurgy strategy including presureless sintering, hot compacting process and hot extrusion. The microstructures of the as-prepared composites were observed by scanning electronic microscopy(SEM), and the mechanical properties were characterized by tensile strength measurement and Brinell hardness test. The experimental results revealed that the tensile strength of the composite with the addition of 5wt%-SiC nanoprticles could be increased to 215 MPa, increasing by 110% compared with pure Al matrix. Comparative experiments reflected that the-SiC nanoprticles showed significant reinforcement effect than traditional-SiC micro-sized particles. The preparation process and sintering procedure were investigated to develop a cost effective preparation strategy to fabricate nano-SiCp/Al composite. | WANG Linong WU Hao WU Xingping CHEN Minghai LIU Ning | 2013 | Journal of Wuhan University of Technology(Materials Science)2013，28，6： | 5 |
| 2 | Synthesis,insecticidal and acaricidal activities of novel 2-arylpyrroles显示文摘To search for novel 2-arylpyrroles with unique biological activities,a series of novel 2-arylpyrrole derivatives were designed and synthesized,and their structures were characterized by 1 H and 13 C NMR spectroscopy,MS spectrometry,and elemental analysis.Their insecticidal activities against Lepidopteran pests (e.g.Mythimna separata) and acaricidal activities against mites (e.g.Tetranychus urticae) were evaluated.The results of bioassays indicate that some of these title compounds exhibited excellent insecticidal and acaricidal activities.For example,4-bromo-1-((chloromethoxy)methyl)-2-(4-chloro phenyl)-5-(trifluoromethyl)pyrrole-3-carbonitrile (6a),4-bromo-2-(4-chlorophenyl)-1-((2-fluoroethoxy)-methyl)-5-(trifluoromethyl)pyrrole-3-carbonitrile (6d) showed insecticidal activity against Mythimna separata and 4-bromo-2-(4-chlorophenyl)1-((isopropoxymethoxy)methyl)-5-(trifluoro methyl)pyrrole-3-carbonitrile (7d) showed acaricidal activity against Tetranychus urticae.They were more effective than Chlorfenapyr,which has been the only commercialized member of a new class of chemicals of 2-arylpyrroles. | LIU AiPing TANG Ming YU ShuYing LIU XingPing WANG XiaoGuang PEI Hui WU DaoXin HU Li OU XiaoMing HUANG MingZhi | 2013 | Science China Chemistry2013，56，1： | 5 |
| 3 | Periodic Solutions for Second Order Systems with Not Uniformly Coercive Potential显示文摘 | Tang Chunlei Wu Xingping | 2001 | J Math Anal Appl2001，259，： | 1 |
| 4 | Sampling Scattered Data with Bernstein Polynomials: Stochastic and Deterministic Error Estimates 显示文摘 | Wu Zongmin Sun Xingping Ma Limin | 2013 | Advances in Computational Mathematics (S1572-9044)2013，38，1： | 1 |
| 5 | Periodic solution of a class of non-autonomous second order systems显示文摘 | WU Xingping TANG Chunlei | 1999 | J Math Anal Appl1999，236，： | 1 |
| 6 | Periodic solutions of nonautonomous second-order Hamihonian systems with eventyped potentials 显示文摘 | Wu Xingping Tang Chunlei | 2003 | Nonlinear Analysis2003，55，6： | 1 |
| 7 | Periodic solutions of a class of nonautonomous second order systems显示文摘 | Wu Xingping Tang Chunlei | 1999 | J Math Anal Appl1999，，236： | 1 |
| 8 | Periodie solutions for second order systems with not uniformly coercive potential显示文摘 | Tang Chunlei Wu Xingping | 2001 | J Math Anal Appl2001，，259： | 1 |
| 9 | Periodic solution of nonautomous second order system with bounded nonlinearity显示文摘 | WU Xingping | 1999 | J Math Anal Appl1999，230，： | 1 |
| 10 | Periodic Solution of nonautomous second order system with bounded nonlinearity显示文摘 | Wu Xingping | 1999 | J Math Anal Appl1999，230，2： | 1 |
| 11 | Some Existence Theorems for Elliptic Resonant Problems显示文摘 | Tang ChunLei | 2001 | J Math Anal Appl2001，264，1： | 1 |
| 12 | Periodic solutions for second order systems with not uniformly coercive potential显示文摘 | TANG Chunlei WU Xingping | 2001 | J Math Anal Appl2001，259，2： | 1 |
| 13 | Periodic solutions for second order systems with not uniformly coercive potential显示文摘 | Tang Chunlei Wu Xingping | | 0，，02： | 1 |
| 14 | Periodic solution of a class of nonautonomous second order systems显示文摘 | WU Xingping TANG Chunlei | 1999 | J Math Anal Appl1999，236，： | 1 |
| 15 | Periodic Solution of nonautomous second order system with bounded nonlinearity显示文摘 | WU Xingping | | 0，，： | 1 |
| 16 | Periodic solutions of a class of non-autonomous second-order systems 显示文摘 | Wu Xingping Tang Chunlei | 1999 | J Math Anal Appl1999，236，2： | 1 |
| 17 | Periodic solutions for second order systems with not uniformly coercive potential 显示文摘 | Tang Chunlei Wu Xingping | 2001 | J Math Anal Appl2001，259，2： | 1 |
| 18 | Periodic solutions for a class of non-autonomous subquadratic second order Hamihonian systems 显示文摘 | Tang Chunlei Wu Xingping | 2002 | J Math Anal Appl2002，275，2： | 1 |
| 19 | Periodic solutions of a class of nonautonomous second order systems 显示文摘 | Wu Xingping Tang Chunlei | 1999 | J Math Anal Appl1999，，236： | 1 |
| 20 | Some Existence Theorems for Elliptic ResonantProblems显示文摘 | Tang Chunlei | 2001 | J Math Anal Appl2001，264，： | 1 |
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