Optimal insurance with background risk: An analysis of general dependence structures

Finance and Stochastics - In this paper, we consider an optimal insurance problem from the perspective of a risk-averse individual who faces an insurable risk as well as some background risk and...     

徐家围子断陷区营城组火山岩识别

勘探实践表明徐家围子断陷营城组火山机构是深层天然气藏良好的储集体。本文以徐家围子断陷中部营城组火山岩为研究对象,该区火山岩厚度大,爆发相、喷溢相和火山沉积相等各种相带均较发育,通过对火山岩地震反射特征的系统分析,总结了各种相带的具体震相特征。并以此为依据,应用趋势面属性、相干体分析技术等多种手段,对火山机构的空间分布进行了识别与预测,在营城组共识别出44个火山锥,对本区火山岩气藏的勘探开发具有一定的指导作用。     

光接收机原理及常见故障分析

本文简要介绍了光接收机工作原理及使用中应注意的一些问题,并结合实际对常见故障进行分析.     

试论可再生能源技术在绿色建筑中的应用

随着我国建筑行业的不断发展,为了迎合节能、环保需求,绿色建筑开始出现。对于绿色建筑来说,要想体现出环保意识,需要在建筑中添加可再生能源,这样不仅符合当前我国绿色发展的理念,还能减少对环境的污染,可以更好地保护环境。论文针对可再生能源技术在绿色建筑中的应用展开分析。     

集体林区林业专业合作社人才培养质量评估研究

基于福建省83个林业专业合作社的调查数据,运用层次分析法,构建集体林区林业专业合作社人才培养质量的评估模型,并对其进行分析。结果表明:被调查的83个林业专业合作社的人才培养质量评估的各个维度的评估、总体评估的结果均不理想。因此,提出加强对人才培养的重视,营造良好氛围;精心规划培养内容和方法,提高培养的实效性;充分运用多方资源,系统拟定分类人才培养规划;增加人才培养的投入,完善配套制度安排等建议。     

我国出口贸易摩擦预警机制的现状、问题与对策

我国“入世”以后,为了保证出口的稳定增长,维持正常的出口秩序,迅速建立了出口贸易摩擦预警机制并已发挥了重要的作用。然而,出口贸易摩擦出现的一些新特点,对正在完善中的预警机制提出了新的挑战。本文对我国出口贸易摩擦预警机制的现状和问题进行了分析,并提出了相应的对策。     

Do satisfying walking and cycling trips result in more future trips with active travel modes? An exploratory study

Previous studies have indicated that travel satisfaction - the experienced emotions during, and cognitive evaluation of, a trip - can be affected by travel mode choice and other trip characteristics. However, as satisfactory trips might improve a person's attitude towards the used mode, persons may be more likely to use that same mode for future trips of the same kind. Hence, a cyclical process between travel mode choice and travel satisfaction might occur. In this paper we begin to analyse this process—using a structural equation modelling approach on cross-sectional data—for people who engage in walking and cycling for leisure trips in the Belgian city of Ghent. The focus on walking and cycling reflects recent studies indicating that active travel is often associated with the highest levels of travel satisfaction. Results of this exploratory analysis offer tentative support for the idea of a cyclical process: the evaluation of walking and cycling trips positively affects the respondents' attitude towards the respective mode, which in turn has a positive effect on choosing that mode.