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21.
目前,农网完善工程中的10kV配电线路的施工过程要求,拉线与杆塔的夹角必须符合设计要求,从而保证在不同地形架设的架空线路杆塔稳定。对此,文章提出相应的拉线坑定位计算简易方法。 相似文献
22.
Abstract The purpose of this study is to examine the information search behavior of Hong Kong's inbound tourists, in particular business and leisure travelers. The study clearly shows that business and leisure travelers demonstrate different information search behavior. ‘Personal experience,’ ‘Travel agency/tour company,’ ‘Airlines’ and the ‘Internet’ are most frequently relied upon by business travelers in searching for travel information, while leisure travelers prefer ‘Travel agency/tour company,’ ‘Friends or relatives,’ ‘Travel guide books,’ and ‘Personal experience.’ The study also reveals that the total number of information sources used and the length of pre‐trip planning lead‐time are significantly different between these two groups of travelers. First time travelers also have a longer pre‐trip planning lead‐time than repeat travelers. Furthermore, business and leisure travelers perceive the levels of influence of several information sources, including ‘Corporate travel departments,’ ‘Friends or relatives,’ ‘Travel guide books,’ and the ‘Internet,’ differently. These information sources were classified into five different dimensions, including ‘Media,’ ‘Neutral,’ ‘Retail,’ ‘Interpersonal,’ and ‘Personal experience.’ Analysis based on travelers' purpose for traveling and demographic information was performed. Leisure travelers perceive the level of influence of ‘Neutral’ sources as significantly higher, and those with lower household incomes perceived the level of influence of ‘Personal experience’ as lower. The results of this study will allow marketers in Hong Kong to better understand travelers’ information search behavior so that they can more effectively tailor their marketing strategies to these two major markets. 相似文献
23.
液压缸的基本零件是油缸,对于细长油缸孔的加工应采用拉削加工的方法。刀杆在工作时不是悬伸的,而是两头有支撑,从而改变了其切削条件。切削刚度的加强,消除了振动,保证了加工精度,提高了生产率。 相似文献
24.
This study is an empirical test of the Easley, O'Hara, and Srinivas (1998) multimarket sequential trade model of stock and option markets. We employ two approaches to determine the information content of signed stock and option trades executed around quarterly earnings announcements. The first approach expands the vector autoregression (VAR) technique of Hasbrouck (1991a) to include signed option trade volumes and inter‐trade durations. Estimates from the VAR models provide insight into whether both equity and option trades are viewed as informative by the equity specialist. The second approach focuses on the information content of the earnings releases to determine whether signed equity and option trades executed prior to the announcements are informed. Results indicate that although informed traders prefer to transact in both markets around earnings announcements, option market transactions contain no incremental information. 相似文献
25.
综合配套改革这一全新的改革思路和理念的提出,为建设自由贸易港区提供了条件。同时,自由贸易港区的建设,也赋予了综合配套改革以新的特征。当前,上海浦东新区、深圳特区和天津滨海新区应当充分利用综合配套改革的政策优势,在外汇政策、贸易政策、税收政策、行政管理体制等各个领域进行政策调整和制度创新,积极稳妥地推进自由贸易港区建设。 相似文献
26.
随着我国交通基础设施建设的快速发展,钻孔灌注桩作为一种基础形式其适应性强、成本适中、施工简便等且工艺日趋完善。但灌注桩属于隐蔽工程,影响灌注桩施工质量的因素很多,质量检查也比较困难。因此对其施工过程每一环节都必须严格要求。通过容县至藤县公路道知河中桥的桩基施工,详细介绍钻孔灌注桩施工工艺,期望通过与同行们相互交流,达到提高施工水平的目的。 相似文献
27.
Nonfinancial measures (NFMs) are a common feature of strategic performance management frameworks. We examine the role of one widely used NFM: customer satisfaction, in one aspect of strategic performance management: CEO compensation schemes. Drawing on agency theory precepts, we hypothesize that the extent to which firms link CEO compensation to customer satisfaction is influenced by satisfaction's ability to act as a leading indicator of future profitability (lead indicator strength). We further hypothesize that the extent to which customer satisfaction's lead indicator strength influences the weighting of satisfaction in CEO compensation schemes has a positive influence on future shareholder value. Our empirical results offer strong support for both hypotheses and extend research on the use and efficacy of NFMs in CEO compensation schemes. Copyright © 2013 John Wiley & Sons, Ltd. 相似文献
28.
赵飞 《沈阳工程学院学报(社会科学版)》2011,7(4):476-478
党的十七大报告关于建设社会主义核心价值体系的论述,为引领价值多样性指明了方向。现阶段,我国社会客观存在的各种思想和价值观念相互交织、激荡和碰撞,彼消此长,呈现出"一元主导,多样并存"的趋势,价值多样性在很大程度上猛烈地冲击着社会主义核心价值体系的建设。因此,用社会主义核心价值观引领多样性的人生价值观,对大学生思想建设具有重大的现实指导意义。 相似文献
29.
在球墨铸铁生产中皮下气孔是最常见的铸造缺陷之一,为提高产品的铸造质量,文章详细地分析了皮下气孔的成因,阐述了防止皮下气孔的工艺措施。 相似文献
30.
Numerous policymakers have accepted claims in the public health literature that the United States is in the middle of a serious epidemic of childhood lead poisoning, due primarily to lead paint in the housing stock. This article analyzes some of the most influential lead paint epidemiological studies from an economics perspective and finds evidence that the claimed effects of lead on intelligence, school success, and other outcomes may be grossly exaggerated. In addition, the main cost-benefit analysis used by policymakers to advocate lead paint abatement of the entire U.S. housing stock contains serious mathematical errors and strikingly implausible economic assumptions. A corrected model shows that the proposed national abatement policy is likely to yield no net benefit. 相似文献