Are multinational teams more successful?

Teams have become increasingly multinational in many sectors. The impact of national diversity on team performance is, however, controversial. On the one hand, multinational teams may have access to a greater variety of task-relevant expertise, which should increase the team performance. On the other hand, national diversity may complicate team collaboration and increase team conflict. Applying panel econometrics to 4284 team observations in a globalized sector, we find evidence that multinational teams perform worse than teams with less national diversity.     

利用可调油嘴实现掺水量合理定量化的探讨

将抽油机井井口控制掺水量的闸门或档板改装设计成可调油嘴,使单井掺水量的控制更加方便灵活,减少岗位工人的劳动强度,同时对合理控制单井回油温度,提高和稳定掺水系统压力很有效。     

增加锅炉燃用煤气量的改进实践

文章通过对锅炉煤气系统和锅炉煤气燃烧情况进行实验分析论证得出结论：采用降低煤气系统和煤气燃烧器阻损的方法,能提高锅炉燃用煤气量,改进效果良好。     

非平衡电桥数字温度计的设计

文章利用热敏电阻和非平衡电桥设计出了可以测量热力学温度、摄氏温度以及华氏温度的电路,并制成温度计。通过对这个温度计的校准表明:利用热敏电阻和非平衡电桥制作的数字温度计电路简明、结构简单、精度较高、达到了设计要求。     

以内资bot方式建设我国基础设施的可行性研究

BOT模式自20世纪80年代引入我国之后,在我国的基础设施建设领域发挥了重大的作用。然而,我国大量的民间资本由于种种原因找不到合适的投资渠道,某些市场领域一旦出现供求矛盾,就会吸引大量的民间资本进行炒作,这就有必要对其进行引导,为其寻求健康的发展环境。而内资BOT模式能够很好的解决这个问题。     

智能水凝胶在给药系统中的应用

智能水凝胶是一类能"感知"外界环境微小的物理或化学变化刺激,自身性质随之发生明显改变的功能性聚合物,是构建智能型给药系统的新型栽体材料,也是目前环境感应性控释给药系统的研究热点.论述了温度敏感性水凝胶和pH敏感性水凝胶的性质及在药物控释体系中的应用.     

The Development and Positioning of Business Related University Tourism Education

Abstract

The teaching of tourism at a higher education level has become well established in British universities, but in the UK, as elsewhere in the world, the place of tourism studies within the academic curricula remains uncertain. The paper considers the diversity and complexities of tourism studies through a categorisation of journal articles, and through an investigation of the underlying debates that have influenced the design of academic curricula in the UK. The paper concludes that tourism, at least at present, should not be regarded as discipline but as a field and that the most common approach in the UK has been to emphasise the business studies subjects. The University of Northumbria's established undergraduate travel and tourism management course is presented as a case study of this approach to the subject field.     

谈手动涂胶泵系统在低成本、高价值企业中的应用

文章通过对手动涂胶泵系统与传统的支装胶手动涂胶系统进行对比,阐述了在车身制造过程中手动涂胶泵系统的运用给企业所带来的经济效益。     

东北地区土壤活性有机碳对水热梯度变化的反映S152.4+2S153.6

基于样区20年气象资料统计结果和2006年土壤有机碳实测值,分析了东北样区内土壤活性有机碳各组分的空间分布格局及其与年均温(t)、降雨量(p)、有效积温和p/t(降雨量/年均温)之间的关系。结果表明:样区内土壤活性有机碳各组分沿纬度呈现出南低北高的分布趋势;活性有机碳各组分与土壤有机之间具有显著的正相关性;活性有机碳组分之间具有较强的相关性;活性有机碳各组分与气候因素之间存在良好的相关性。活性有机碳各组分与年均温之间的相关性大于活性有机碳各组分与降雨量之间的相关性。