热处理时间对IT0薄膜显微组织及光电性能的影响

采用溶胶一凝胶法在玻璃基体上制备了ITO薄膜,研究了后续热处理时间对ITO薄膜显微组织及光电性能的影响。研究结果表明:随着热处理时间的延长,ITO薄膜的微观形貌发生了很大的变化,出现了小丘生长并伴随着回复与再结晶过程,严重影响了ITO薄膜的光电性能。     

试论自学的方法和技巧

高等学校是为新世纪培养各类高层次专门人才而传授知识，相应的学习课程较多，授课时间少，课程的难度大。因此学生就应通过自学、分析、理解、贯通新的理论知识。本就大学生如何培养自学能力做一讨论。     

共轭效应对有机化合物性质的影响

通过具体事例，研究共轭效应对有机化合物的物理性质、光谱性质、化学性质的影响，探讨这些影响的一般规律．     

Intercultural sensitivity among university students: measurement of the construct and its relationship with international mobility programmes / Sensibilidad intercultural de los estudiantes universitarios: medición del constructo y su relación con los programas de movilidad internacional

The purpose of this study was to validate the IDI (Intercultural Development Inventory) and to assess the impact of international mobility programmes on the intercultural sensitivity of university students. For this, a quasi-experimental study was carried out using a longitudinal design of repeated pre-test and post-test measures, with an experimental group of students who carried out international mobility programmes and a control group of students who did not. The sample consisted of 3,047 university students. The inventory yielded a five-factor structure (negation/defence, minimization, reversion, acceptance/adaptation and encapsulated marginality) with alpha coefficients ranging from .82 to .91, revealing adequate reliability and validity. The results indicate the effectiveness of the IDI to measure intercultural sensitivity. Although the post-test scores are higher than the pre-test scores for both groups, there are significant differences in favour of the experimental group (p = .000) in all factors except the negation/defence stage. The conclusions focus on the implications of this study for curriculum development and policy at an educational level.     

Geotechnical behavior of the MSW in Tianziling landfill

INTRODUCTIONTheTianzilingwastelandfillbuiltin 1991toproperlydisposeofmunicipalsolidwaste(MSW)hasadesignedservicelifeof13years.Itwasfilledstagebystageatthebeginningoftheelevationof 50 .5m .Bynow ,thelandfillhasreachedthelevelof 10 2 .5m ,whichex ceedst…     

等离子体中的波动

分析了“冷”、“热”等离子体中波动现象的普遍色散关系,比较了其异同点,给出了反映“冷”等离子体中波动分类的CMA图和反映“热”等离子体中波动的(ω,κ)色散关系图．     

非对称左手材料平面波导TM模的传输特性

Three-layer slab waveguide with left-handed materials （LHM） is discussed using the Maxwell＇s equations and their equations of dispersion relation for TM modes are obtained. By seeking the power of the slab waveguide, their equations of effective thickness for TM modes are obtained. Furthermore, the interrelated equations for right-handed materials （RHM） slab waveguide are introduced and their curves plotted. To find new properties for LHM slab waveguide, the equations and their curves for the LHM and RHM slab waveguide are compared respectively.     

Measurement of Mass Difusivity of Moist Porous Media under the Influence of Forced Convection at Sur

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聚氨酯接枝聚丙烯酸酯复合分散体的合成与表征

以丙烯酸-2-羟丙酯(HPA)为接枝剂,采用种子乳液原位聚合法合成了聚氨酯接枝聚丙烯酸酯(W PUA)复合分散体.通过傅立叶红外光谱(FT IR)、凝胶渗透色谱(GPC)和粒径测定及透射电镜观察(TEM)对W PUA复合分散体的结构、分散体的粒子大小及形态进行了研究.结果表明,以HPA为接枝剂,通过种子乳液原位聚合可以实现PA在W PU上的接枝,接枝率约为70%;分散体平均粒径约为103 nm;TEM显示分散体粒子具有反相核壳结构.