K2O-B2O3-SiO2/Al2O3低温共烧陶瓷介质材料研究

采用1 500℃高温熔融水淬制得K2O-(n-x) B2O3-xSiO2玻璃粉,掺入Al2O3陶瓷填充料来制备K2O-(n-x)B2O3xSiO2/Al2O3低温共烧陶瓷介质材料.系统研究了玻璃基中SiO2/B2O3比例变化和玻璃掺入量对玻璃/陶瓷材料结构和性能的影响规律.研究结果表明,B2O3含量增加抑制了玻璃Y中SiO2析晶,使复合材料的介电常数、介电损耗在一定程度上有所减小,复合材料的抗弯强度也有一定程度的减小.     

玻璃痕迹物证在火灾中的证明作用

火灾发生以后,建筑物内的可燃物都已变成残骸。大量生活用品燃烧殆尽,物理形态发生了根本性的变化。玻璃有着独特的属性,在火灾现场能够保留下来。因此,勘验火场以辨识玻璃痕迹为主要工作内容。玻璃痕迹,成为了证实火灾发生原因的重要物证。     

中学化学玻璃仪器的洗涤

在化学实验中,洗涤玻璃仪器不仅是一项必须做的实验前的准备工作,也是一项技术性的工作。     

浅谈建筑装饰材料在室内设计中的应用

装饰材料的种类繁多,性质丰富,质感多样,形成了效果各异的色彩视觉与情感效应,不同性质的材料在室内设计中的应用有着不同的效果,在设计中应注意对比与和谐的统一,和谐体现永恒的美,对比产生生命的灵气。文章对各种不同材料属性在室内设计中的应用做了一个较为全面的论述。     

高凝油自动计量技术

沈阳油田是我国最大的高凝油生产基地,原油的凝固点在45～67℃之间。目前主要采用分离器玻璃管计量油井产量,其缺点是流程复杂,工作效率低,工人劳动强度大。随着沈阳油田的高凝油生产进入了高含水时期,原油伴生气急剧减少,采用玻璃管计量十分困难。针对高凝油生产的特点,该油田研究应用了低油气比的油井计量方式—高凝油自动计量技术,能够优化和简化目前的油井计量工艺,对油井产量进行高效、准确、及时的计量。     

玻璃化转变对食品干燥贮藏的影响

本文从玻璃态及玻璃化转变相关理论出发,阐述了玻璃化转变这个物理化学过程对食品干燥贮藏稳定性的重要影响,并应用该理论解释干燥过程中品质变化机理。     

Is There a Glass Ceiling over Germany?

This paper analyzes the gender wage gap across the wage distribution using 2010 data from the German Statistical Agency. I investigate East and West Germany and the public sector separately to account for potential heterogeneities in wage gaps. I apply unconditional and conditional quantile regression methods to investigate the differences between highly paid men and women in distributions conditional and unconditional on covariates. The results indicate increasing gender wage gaps in all estimations, suggesting that there is indeed a glass ceiling over Germany even after controlling for a large set of observable characteristics (including occupation and industry). This finding is even more pronounced when also taking bonus payments into account.     

工作用玻璃液体温度计检定注意事项

在温度计的检定过程中,温度计插入恒温槽中不垂直、读数不准确等因素都将给检定结果带来较大的误差,从6个方面讲述了检定过程中需注意的事项,并提出了相应的解决方法,从而减小了温度计的测量误差,提高了测量准确度。     

泡沫玻璃保温材料在外墙内保温中的应用

文章以广西崇左市工人文化宫办公楼、培训楼、综合楼工程泡沫玻璃外墙保温体系为例,简述了泡沫玻璃保温隔热材料的性能、泡沫玻璃外墙保温体系构造以及施工操作要点等。     

Relationships of Organizational Justice and Organizational Identification: The Mediating Effects of Perceived Organizational Support in Hong Kong

Women's role in management is an important issue. This is based not just on moral, but also on economic grounds. In many countries female participation rates in labour markets have increased, but a similar expansion into managerial posts has commonly lagged behind this, often an indication of the resilience of the so-called ‘glass ceiling’. We use South Korea as an example to explore this. We review the literature in the area and provide theoretical explanations and a lens through which to view developments which indicate that social and cultural, rather than economic, reasons often underpin the situation. We go on to outline some possible ways to confront female managerial discrimination and to increase women's roles in management.