The role of dissolved gases in determining the behavior of mineral insulating oils

The characteristics of gas solution in mineral oil are discussed. Data covering the changing gas solubility with temperature and pressure are given.The dielectric strength of oil is shown to be dependent on the kind and amount of its dissolved gas. The dielectric strength-gas content of oil bears a close relation to the recognized dielectric behavior of air itself.It is suggested that the usual dielectric strength of oil measures only the ease of oil “gassing” which may be dependent in part- at least, on dissolved impurities.     

The use of rewards in the sharing of research resources

The literature has shown that academics often share intermediate research resources bilaterally and only infrequently deny requests for sharing. This study goes further and investigates how resource sharing is rewarded. We contrast rewarded and non-rewarded sharing, and further differentiate the types of rewards into direct (e.g., coauthorship) and reputational (e.g., acknowledgments). In a survey of 1,204 resource suppliers or recipients in the UK, Germany, and Japan, we find that rewards are commonly used, and that the form of rewarding is associated with the context in which academics work. In particular, we find that suppliers who are commercially active are more likely to agree on direct rewards. Instead, suppliers who make use of open sharing platforms are more likely to agree on reputational rewards and less likely to agree on direct rewards. For both suppliers and recipients we find that those working in larger teams are more likely to agree on direct rewards, and that their interdisciplinarity is positively linked to direct rewards and negatively to reputational rewards. These results suggest that a reward system for intermediate resources is emerging and rewarding practices are evolving with contextual differences.     

多媒体教学在旅游学科中的运用

通过传统教学和多媒体教学的相互比较,论证多媒体教学符合现代教育的趋势,对如何更好的运用多媒体教学与课程相结合提出建议。     

主体知识在决策中的运用

 分析了主体知识在应对不确定环境方面的作用,指出主体知识对其决策的作用不仅局限于传统分析所述的辅助,还具有替代理性计算决策的功能。依赖主体知识进行的规则支配决策与依赖消耗资源进行理性计算决策,是主体权衡偏差成本与决策成本的理性结果。在节约偏差成本的目标指引下,主体知识的最优特征受到环境事件概率分布的影响。存在一个环境事件概率分布的临界值,可用以分割主体决策的两种模式,确定依赖主体知识进行规则支配决策的适用领域。     

日常学术活动在学会工作中的重要作用

日常学术活动是云南省医学会十多年来,一直坚持开展的经常性工作,在各专科分会的积极配合下,至今一直保持着稳定和持续发展的势头.参加日常学术活动已成为昆明地区及周边地州市县广大会员和医务工作者接受继续医学教育、促进知识更新的重要途径.     

The use of ultra-violet light in the microscopic measurement of particle size

This article describes the new developments in mounting a pigment for photomicrography, and the use of ultra-violet light for increasing the resolution obtainable when dealing with fine particles.Data are given that illustrate the accuracy gained in the measurement of extremely fine particles by this method.     

The role of the quality of shared information in interorganizational systems use

This study develops and tests a three-stage model that examines the role of the quality of shared information in interorganizational systems (IOS) use. The model provides a more inclusive method of measuring quality of shared information in IOS use through a re-examination of the impact of top management support and IT infrastructure capability, and by assessing the mediating effect of operational supply chain performance on the relationship between quality of shared information and overall firm performance. Our results suggest that the impact of the quality of shared information in IOS use on overall firm performance starts with top management support and IT infrastructure capability, and that these success factors positively impact the quality of shared information in IOS use. Moreover, our results indicate that the quality of shared information positively impacts operational supply chain performance, which, in turn, leads to improvements in overall firm performance. Overall, our results highlight the importance of high quality of shared information in IOS use.     

The use of concrete piles

This paper describes particular forms of concrete piles, their uses, and a review of the advantages of this application of reinforced concrete in effecting better construction and in reducing costs.