催化动力学光度法测定痕量钒

研究了在H_2SO_4介质中,微量钒能显著催化氯酸钾氧化核固红(1-氨基-2,4-二羟基蒽醌-3-磺酸钠)(C.I.No.60760)褪色。研究了反应的动力学行为,建立了测定痕量钒的催化动力学分析方法。该方法的检出限为6.9×10~(10)g/ml,线性范围为0.005～1.8μg/25ml用于测定中草药及食品中的痕量钒,结果满意。     

磁性金属多层膜的新颖特性-巨磁电阻效应

介绍了磁性金属多层膜中巨磁电阻效应的发现过程、特点和成因，并展望了巨磁电阻材料的应用前景。     

磁场中铁磁性胶料的聚沉性质

分析了铁磁性胶料及其周围电解质离子在磁场中的磁化行为和胶粒外磁场分布状况。利用双电层理论计算了在磁场作用下铁磁性胶料周围离子的分布情况，给出磁场作用下胶粒间势能表达式、体系聚沉的临界磁场和聚沉速率表达式，并以常温常压下水溶胶在0.003T磁场作用下的情况为例进行了计算。结果表明，磁场作用对胶粒周围电解质离子浓度分布的影响较小，对铁磁性胶粒间势能和胶粒间聚沉速率的影响较大。粒子浓度为10^16m^-3的水溶胶体系发生聚沉的临界磁场强度为0.0027T，磁场作用加快了聚沉速率。     

M-Ⅰ型纳米颗粒膜的巨磁电阻效应

介绍了M－Ⅰ型纳米颗粒膜的制备手段和测量方法，将M－Ⅰ型纳米颗粒膜分为三个结构区域，推导了M－Ⅰ型纳米颗粒膜的巨磁电阻效应的计算公式。     

通度系数法在紊流模型中的应用

本文在有限体积法和ＳＩＭＰＬＥ算法中引入通度系数的概念，处理计算区域的不规则边界问题，并把通度系数的概念引入到к－ε紊流模型中，推导了考虑通度系数的二维有限体积法的数值离散格式。计算了本坝绕流及岔管水流两个工程实例。计算结果能真实地模拟丁坝流及岔管水流的流动选择，同时表明通度系数法处理各类不规则边界问题是行之有效的，可以补救有限差分法和有限体积法处理不规则问题的缺陷。     

诊断型专家系统的混合知识模型及其实现

阐述了故障诊断专家系统中采用浅知识模型和深知识模型相结合的办法，使得基于专家经验的故障诊断和基于诊断对象结构，功能的诊断解释有机地结合起来，取长补短，相得益彰，大大提高了系统的工作效率和诊断的可靠性。     

晋陕黄土区几个全新世古土壤剖面

对于全新世有黄土堆积，并发育多层古土壤，目前地学界看法逐渐趋向一致，但这些古土壤发育在什么部位，是否都称“黑垆土”?颇有争议，现列举几个剖面以便讨论。     

离子导体导电性的有效介质理论

本文对文献[1]的方法作了改进,讨论了分散的绝缘颗粒第二相对离子导体的导电性能的影响,计算結果与实验是一致的。     

Experimental Research of Automotive Needlepunched Carpets at Thermoforming Temperatures

Tensile prerties with different thermoformingconditions and deformation mechanism at thermoformingtemperatures of automotive needlepunched carpets made up ofthree layers of different materials were reported.Investigations on the tensile properties were performed as afunction of thermoforming temperature, extensile speed andfiber orientation based on an orthogonal experiment design.The experimental results show that the automotive carpets arerate-dependent anisotropic one and very sensitive to theforming temperature. The tensile properties are stronglydepended an the forming temperature when compared with theextensile speed and the fiber orientation. Experiments onlyvarying with the temperature were performed because of thedominative effect of the temperature. Different defotmationperformances were observed with different temperatures.Deformation mechanisms at the thermoforming temperatureswere presented to explain the nonlinear trend of the ultimateelongation with the temperatures based on the combination ofthe experimental observations and the corresponding polymertheories.