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A FINITE-ELEMENT ANALYSIS OF ELECTROMAGNETIC SHEET METAL-EXPANSION PROCESS

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中国有色金属学会会刊：英文版 1998年第3期8卷 135-140页

作者： Huang, SY Chang, zh.Wang, ZR Wang, LF Yang, M Wuhan Automot Polytech Univ Sch Mat Engn Wuhan 430070 Peoples R China Harbin Inst Technol Sch Mat Sci & Engn Harbin 150006 Peoples R China

１ＩＮＴＲＯＤＵＣＴＩＯＮＥｌｅｃｔｒｏｍａｇｎｅｔｉｃｆｏｒｍｉｎｇ，ｅｓｅｎｔｉａｌｙｂｅｉｎｇａｋｉｎｄｏｆａｐｐｌｉｃａｔｉｏｎｏｆｉｍｐｕｌｓｅｉｎｔｅｎｓｉｖｅｃｕｒｅｎｔｔｅｃｈｎｉｑｕｅｉｎｍｅｔａｌ... 详细信息

１ＩＮＴＲＯＤＵＣＴＩＯＮＥｌｅｃｔｒｏｍａｇｎｅｔｉｃｆｏｒｍｉｎｇ，ｅｓｅｎｔｉａｌｙｂｅｉｎｇａｋｉｎｄｏｆａｐｐｌｉｃａｔｉｏｎｏｆｉｍｐｕｌｓｅｉｎｔｅｎｓｉｖｅｃｕｒｅｎｔｔｅｃｈｎｉｑｕｅｉｎｍｅｔａｌｗｏｒｋｉｎｇ，ｄｅａｌｓｗｉｔｈ...

关键词： finite element analysis electromagnetic forming magnetic pressure

A New Modification to Shear Lag Model as Applied to Stiffness and Yield Strength of Short Fiber Reinforced Metal Matrix Composites

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Journal of Materials Science & Technology 1998年第6期14卷 516-522页

作者： Jiang, zh.Lian, JS Yang, DZ Dong, SL Jilin Univ Technol Dept Mat Sci & Engn Changchun 130025 Peoples R China Harbin Inst Technol Sch Mat Sci & Engn Harbin 150001 Peoples R China

A new modification for the shear lag model is given and the expressions for the stiffness and yield Strength of short fiber metal matri×composite are derived. These expressions are then compared with our experimental data in a SiCw/Al-Li T6 composite and the published experimental data on different SiCw/Al T6 composites and also compared with the previous shear lag models and the other theoretical models.

关键词： SiC A New Modification to Shear Lag Model as Applied to Stiffness and Yield Strength of Short Fiber Reinforced Metal Matrix Composites

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蜂蜜甜米酒的研制

蜜蜂杂志 2024年第6期44卷 17-21页

作者：刘彩珍付志英福建农业职业技术学院

以糯米和蜂蜜为主要原料酿制蜂蜜甜米酒，采用正交实验法以蜂蜜甜米酒的感官得分为指标，对其酿制过程中蜂蜜、酒曲以及纯净水三者的添加量进行优化，正交分析结果显示当三者添加量依次为：蜂蜜15.0 g、酒曲1.5 g、纯净水80.0 mL时最佳... 详细信息

以糯米和蜂蜜为主要原料酿制蜂蜜甜米酒，采用正交实验法以蜂蜜甜米酒的感官得分为指标，对其酿制过程中蜂蜜、酒曲以及纯净水三者的添加量进行优化，正交分析结果显示当三者添加量依次为：蜂蜜15.0 g、酒曲1.5 g、纯净水80.0 mL时最佳，经验证实验在最佳工艺参数下酿制出的蜂蜜甜米酒酒精度6.85，感官评分均值为88.7，与正交实验结果相一致。

关键词：蜂蜜糯米发酵工艺米酒

A Mild and Practical Procedure for Tetrahydropyranylation of Alcohols and Phenols Catalysed by Anhydrous Ferrous Sulfate

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Chinese Chemical Letters 1998年第3期9卷 241-244页

作者： Li, TS zh.ng, zh.Jin, TS Li, YL Hebei Univ Dept Chem Baoding 071002 Hebei Peoples R China Lanzh.u Univ Natl Lab Appl Organ Chem Lanzhou 730000 Peoples R China

An easy preparation of tetrahydropyranyl (THP) ethers of alcohols and phenols with 3,4-dihydro-2H-pyran (DHP) in refluxing dichloromethane has been carried out in good to excellent yields under catalysis of anhydrous ... 详细信息

关键词： preparation tetrahydropyranyl ethers protection of hydroxy catalysis anhydrous ferrous sulfate

Computer Simulation of Two Component Dense Plasma by Molecular Dynamics Method

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Communications in Computational Physics 2014年第4期15卷 1159-1166页

作者： zh.A.Moldabekov T.S.Ramazanov IETP Al-Farabi Kazakh National University71 Al Farabi av.Almaty050040 Kazakhstan

In the present work two component dense semiclassical plasma of protons and electrons is *** and electrodynamic properties of the plasma by molecular dynamic simulation are *** these purposes semiclassical interparticle potential which takes into account quantum mechanical diffraction and symmetry effects is *** considered range of density of plasma is n=1022cm^(−3)to n=1024cm^(−3).Fluctuations and dynamic dielectric functions were calculated using velocity autocorrelation functions.

关键词： Molecular dynamic simulation dense semiclassical plasma semiclassical interparticle potential

The noise matrix theory of two-port network--The noise analysis of a feedback amplifier

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Chinese Science Bulletin 1997年第19期42卷 1665-1669页

作者： Dai, YS Qian, zh.Li, YQ Dept. of Electronics Engineering Juin University of Technology Changchun 130025 China

THE low-noise preamplifier, as one of the major circuits in signal detection system, consists ofthe low noise amplifier and the feedback network. The low noise amplifier design aims both tocalculate the optimal source impedance and minimum noise figure, and to compare the noiseperformance and other characteristics of variant circuits and components. The conventional ap-proach to noise analysis of an electronic circuit is to calculate the output noise power of the

关键词： two-port network noise spectral density matrix feedback amplifier.

STUDIES　ON　THE　NON－ISOTHERMAL　KINETICS　OF　THERMAL　DECOMPOSITIONS　OF　THE　COMPLEXES　OF　Cd（II）WITH　O－VANILLIN　THIOSEMICARBAZONE　AND　IRON（III）WITH　2－［（O－HYDROXYBENZYLIDENE）AMINO］PHENOL　AND　PYRIDINE

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Chinese Chemical Letters 1995年第7期6卷 637-640页

作者： Hu, QP Cui, XG Yang, zh Shandong Univ Dept Chem Jinan 250100 Peoples R China Shandong Univ Inst Crystal Mat Jinan 250100 Peoples R China

The thermal decompositions of the complex of Cd(II) with o-vanillin thiosemicarbazone (complex 1) and the mixed ligand complex of iron (III) with 2-[(o-hydroxybenzylidene)amino] phenol and pyridine (complex 2) and their non-isothermal kinetics have been studied by TG and DTG *** non-isothermal kinetic data were analyzed and the kinetic parameters for the first and second steps of the thermal decompositions were evaluated by twodifferent methods -- differential and integral methods. Their kinetic equatiolls were obtained.

关键词： III IRON THIOSEMICARBAZONE AMINO AND

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中国有色金属学会会刊：英文版 2001年第6期11卷 843-846页

作者： Yan, HG Chen, zh.Kang, ZT Chen, G Hunag, PY Hunan Univ Sch Mat Sci & Engn Changsha 410082 Peoples R China Cent S Univ Dept Mat Sci & Engn Changsha 410083 Peoples R China

The phase formation regularities in nanometer powders of ternary alloys prepared by gas evaporation process with induction current as the heating source were investigated. Al-Cu-Mn and Al-Cu-Cr were chosen as the samples in this study. The experimental results show that the necessary conditions for forming ternary compound phases in a ternary alloy nanometer powder are that they must be able to form in a conventional bulk alloy. To obtain a ternary compound phase in nanometer powders, composition of the master alloy must be in a certain range. Changing the composition of the master alloy and evaporation temperature can control the kinds of the phases and their relative amount in the alloy nanometer powders. In present study, AlMn, Al8Mn5 and AlCu2Mn phases formed in as-prepared nanometer powders of Al-Cu-Mn alloy, and the highest relative amount of AlCu2Mn phase is about 99%. In nanometer powders of Al-Cu-Cr alloy,Cu9Al4, Al2Cu3, AlCr2 and Al13Cr2 phases formed without any ternary compound phase.

关键词： nanometer powder gas evaporation alloy powder

ELECTRON　TRANSFER　AGENT　DEPENDENCY　OF　MONOOXYGENATION　OF　CYCLOHEXANE　CATALYZED　BY　SILICA　IMMOBILIZED　N，N＇－BIS［2－（BENZIMIDAZOLYLMETHYL）］AMINO　FERROUS　ACETATE　COMPLEX

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Chinese Chemical Letters 1996年第1期7卷 47-50页

作者： Wang, TJ Ma, zh.Huang, MY Jiang, YY ACAD SINICA INST CHEM BEIJING 100080 PEOPLES R CHINA

Silica the N, N'-bis[-2-(benzimidazolylmethyl)]amino-ferrous acetate complexes (Ⅳ)catalyzed monooxygenation of cyclohexane to cyclohexanol with the turnover muber(equrvalent C%= 11. 2)under mild *** methylene bule is the most effective electron transfer agent which can also regulate products distribution. The iron content of the polymer-supported complexes, the redox potentials and the concentration of methylene blue greatly affect the activity and selectivity of the complex (Ⅳ).

关键词： OXIDATION