涡旋压缩机径向间隙的泄漏

建立了涡旋压缩机径向间隙泄漏的数学模型和模拟压缩机热力过程的计算模型。分析了不同的径向间隙量对其泄漏量的影响，以及对压缩机性能的影响。     

金融危机背景下套利定价模型的浅析

金融危机给资本市场投资带来了更大的风险,也使得证券投资在定价分析上更加复杂化。从现代投资组合模型的演化和目前投资人普遍规避风险的倾向来看,套利定价模型是更有效的分析模型。投资者可以在结合资本市场实际情况和偏好的同时运用套利定价模型,以便在危机中做出理性的选择。     

The Effect of Probabilistic Selling on the Optimal Product Mix

Determination of the merchandize assortment is an important decision for retailers since the composition and depth of the product mix greatly impact both unit sales and costs. This paper considers how Probabilistic Selling (PS), an emerging marketing strategy, impacts the type and number of products a retailer should carry. We find that adopting PS can alter the optimal number of products (i.e., encourage the retailer to offer more or fewer products), depending on demand- and supply-side factors. Furthermore, introducing probabilistic goods sometimes increases the optimal degree of product differentiation and sometimes reduces it. Specifically, less differentiated products are warranted if there are either few or many consumers with extreme tastes, but more differentiation is needed otherwise. Our analysis reveals that PS can serve either as a substitute to new product introduction (because it enables a retailer to serve a diverse market at a lower cost) or as a complement to new product introduction (since, under PS, a new product enables a retailer to offer additional probabilistic goods that utilize this new product as one of its components). In sum, our results indicate that a retailer must adjust its merchandize assortment appropriately in order to fully benefit from probabilistic selling.     

Gender as a moderator of the relationship between materialism and fashion clothing involvement among Indian youth

The research examines the role of gender in moderating the relationship between materialism and product involvement with fashion clothing among the Indian youth. The Richins materialism scale and the product involvement and purchase involvement scales developed by O'Cass were used to understand the behaviour of Indian youth towards fashion clothing. The sample (n = 254) comprised of university students from different parts of India. The findings indicate that Indian youth do not possess a high level of materialistic tendencies. Gender has a moderating influence on the relationship between materialism and involvement with fashion clothing. Young men and women differ with respect to their involvement with fashion clothing and even more with regard to their involvement with the purchase of fashion clothing, with women reporting a higher level of involvement in both cases.     

IE技术在生产线改善中的应用研究

文章通过对A公司后序车间汽车空调外壳B的加工生产线进行程序分析,改善生产过程中存在的问题。运用工业工程的ECRS四大原则和动作经济原则,对产品在车间的流程程序和工作台上加工工艺程序提出了优化方案,通过对改善前后的对比分析,结果表明,IE技术应用于生产线可缩短生产周期,降低生产成本,提高生产效率。     

数字线化图（DLG）要素分类探讨

探讨数字线划图的特点以及编辑要点。     

渭河特大桥44m节段拼装膺架设计与受力分析

膺架法结合节段拼装技术进行大跨度简支箱梁的施工,具有施工速度快、可操作性强、经济和安全等优点,文中结合渭河特大桥施工,介绍节段拼装膺架设计及受力分析。     

Factors motivating and influencing clothing disposal behaviours

This study of 232 college students was framed by Ajzen and Fishbein's theory of reasoned action and examined factors that motivate and influence college students' clothing disposal behaviours. Using survey questionnaires, we investigated four different clothing disposal options (resale, donation, reusing and discarding) and examined five motivational factors (environmental, economic, charity and convenience concerns and information unavailability). The influences of attitudes towards the environment and subjective norms of family and friends on clothing disposal behaviours also were examined. Results indicated that resale and donation behaviours were explained by environmental concerns and that reuse and resale behaviours were explained by economic concerns. Charity concerns motivated donation behaviours and convenience motivated discarding behaviours. Further, findings indicated that family subjective norms influenced environmentally motivated resale and donation behaviours.     

高速铁路旅客列车停站方案问题的研究分析

对铁路旅客列车停站方案国内外研究现状归纳分析。目前,国内外专家多是结合列车开行方案问题对停站设置进行研究,对停站方案优化的专门研究较少;研究单线、既有线的列车停站方案的较多,研究客运专线网络的较少;根据工作经验对停站方案进行调整的较多,运用算法理论优化的较少。高速铁路旅客列车的停站方案应综合考虑全路客运网络系统,并兼顾旅客的出行需求,合理的停站方案对旅客以及铁路运输企业都具有重要的经济利益。     

论如何做好水电生产一线职工思想工作

水电企业大部分都远离繁华的都市。在交通发达和信息网络高度发展的今天,生产一线职工的思想发生了变化。文章分析了水电生产一线职工的5种需求,提出了做好水电生产一线职工思想政治工作的3种设想,以供借鉴。