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41.
以BT模式及工程建设总承包为背景知识，重点论述了BT模式项目中采用投资建设总承包的作用、这种模式的缺陷以及在今后的发展中如何完善。 相似文献
42.
This study investigates the effect of the presence of a firm's general counsel on the top management team on the likelihood that a US publicly traded company is targeted by a securities class action (SCA). 相似文献
43.
分析合同,对项目进行风险识别,制定风险应对措施并进行过程监控,降低风险发生的概率,最大程度地实现工程项目的经济效益。 相似文献
44.
A separation between the academic subjects statistics and mathematical statistics has existed in Sweden almost as long as there have been statistics professors. The same distinction has not been maintained in other countries. Why has it been kept for so long in Sweden, and what consequences may it have had? In May 2015, it was 100 years since Mathematical Statistics was formally established as an academic discipline at a Swedish university where Statistics had existed since the turn of the century. We give an account of the debate in Lund and elsewhere about this division during the first decades after 1900 and present two of its leading personalities. The Lund University astronomer (and mathematical statistician) C. V. L. Charlier was a leading proponent for a position in mathematical statistics at the university. Charlier's adversary in the debate was Pontus Fahlbeck, professor in political science and statistics, who reserved the word statistics for ‘statistics as a social science’. Charlier not only secured the first academic position in Sweden in mathematical statistics for his former PhD student Sven Wicksell but also demonstrated that a mathematical statistician can be influential in matters of state, finance as well as in different natural sciences. Fahlbeck saw mathematical statistics as a set of tools that sometimes could be useful in his brand of statistics. After a summary of the organisational, educational and scientific growth of the statistical sciences in Sweden that has taken place during the last 50 years, we discuss what effects the Charlier–Fahlbeck divergence might have had on this development. 相似文献
45.
系团总支、学生会中的学生干部是系学生中的突出群体,在服务同学、协助学校管理、构建和谐校园的各项工作中具有十分重要的作用,是系人才培养和各项建设的重要部分。加强团总支、学生会学生干部队伍的素质培养,是系精神文明建设、系风学风建设和学生思想政治教育工作的重要环节。本文结合作者实际工作体会,分析了系团总支、学生会学生干部的特点,指出存在的问题,探索了培养高素质团总支、学生会学生干部的方式方法,对系学生干部的培养和校园文化建设具有积极的现实意义。 相似文献
46.
GPRS(通用无线业务)技术是为了满足现有的GSM网络实现与高速数据分组的简便接入而兴起的一门新技术。文章系统分析了GPRS的组成结构及特点,研究了其主要的技术实现。 相似文献
47.
文章采用了OPPC新型光缆,针对电力系统的现状、特点及发展方向,详细阐述了全新的配电综合信息化传输平台的搭建方案。该方案的提出为实现中低压配电网自动化奠定了基础,提高了供电质量、用电可靠性及电力企业自身综合管理水平。 相似文献
49.
Recent work on social status led to derivation of a new continuous distribution based on the exponential. The new variate, termed the ring(2)-exponential, in turn leads to derivation of two closely related new families of continuous distributions, the mirror-exponential and the ring-exponential. Both the standard exponential and the ring(2)-exponential are special cases of both the new families. In this paper, we first focus on the ring(2)-exponential, describing its derivation and examining its properties, and next introduce the two new families, describing their derivation and initiating exploration of their properties. The mirror-exponential arises naturally in the study of status; the ring-exponential arises from the mathematical structure of the ring(2)-exponential. Both have the potential for broad application in diverse contexts across science and engineering. Within sociobehavioral contexts, the new mirror-exponential may have application to the problem of approximating the form and inequality of the wage distribution. 相似文献
50.
通用桥式起重机主梁上拱度是起重机的重要技术指标,因此生产检测中所测的拱度值必须保证是准确可靠的。而在进行起重机桥架结构时,由于各种条件的限制,支架位置常常处于0.8倍跨度处,此时主梁自重对主梁拱度产生的影响值会有偏差,造成测得的主梁上拱度值是不准确的,因此需要对该值进行修正。通过生产实践总结和理论计算相结合,可准确得出支架位置在0.8倍跨度处主梁自重对主梁上拱度的影响修正值,此时测得的拱度值再减去修正值后就是准确的拱度值。 相似文献