Representation of Destination Cultural Factors on Hotel Websites: Content Analysis of Beijing Hotel Websites

The extant tourism literature contains virtually no studies examining the issue of destination culture in the context of hotel website evaluations. The research presented herein examined 168 Beijing hotel websites. Content analysis of these websites was carried out using 12 destination cultural factors identified by the researchers. The aim was to examine whether the performance of the hotel websites under investigation differed in terms of these factors by hotel category. The results indicate that the majority of Beijing hotels do not include destination cultural factors on their websites. Although the websites of privately owned, chain, and international hotels, as well as those with higher star ratings were found to feature more of these factors, the differences were not statistically significant. Among the 12 destination cultural factors identified, Forbidden City was the most commonly included on the hotel websites, and Temple Fair and Pet Birds were completely absent.     

Which is a better investment choice in the Hong Kong residential property market: a big or small property?

The relationship between property size and property investment yield is an interesting issue in the real estate market. Previous studies usually use the mean–variance criterion to compare the return-risk profiles of the yields of different property sizes in the United States. However, this criterion has a few shortcomings. This article provides the first attempt to use a stochastic dominance approach to analyse this issue. We adopt two powerful stochastic dominance tests to compare the yields of five property size classes in the Hong Kong residential property market. In our study, we analyse two possible investment outcomes: (1) investors could not rent out their properties, and thus they would gain/lose from the appreciation/depreciation of residential property prices; (2) investors could also gain from rental incomes. Our empirical results provide strong evidence to show that the yields of smaller property classes stochastically dominate the yields of bigger property classes, suggesting that buying smaller properties is a better investment choice in the Hong Kong residential property market.     

果蔬真空预冷装置关键部件的设计与计算

文章阐明了果蔬真空预冷装置的原理、特性及优点;结合课题给出了预冷装置关键部件基本设计参数的确定方法及计算公式并给出实例,可供专业人员设计参考。     

On the jump activity index for semimartingales

Empirical evidence of asset price discontinuities or “jumps” in financial markets has been well documented in the literature. Recently, Aït-Sahalia and Jacod (2009b) defined a general “jump activity index” to describe the degree of jump activities for asset price semimartingales, and provided a consistent estimator when the underlying process contains both a continuous and a jump component. However, only large increments were used in their estimator so that the effective sample size is very small even for large sample sizes. In this paper, we explore ways to improve the Aït-Sahalia and Jacod estimator by making use of all increments, large and small. The improvement is verified through simulations. A real example is also given.     

浅谈实践教学改革在学生就业中的推动作用

以河南农业大学中药学专业为例,对近几年本专业的就业形势进行回顾分析,探讨实践教学改革对学生就业的推动作用,以期为拓宽农业院校中药学专业本科生的就业渠道提供思路。     

贵州省钒矿开采及冶炼污染防治对策研究

本为通过分析和探讨贵州省近年来在钒矿开采及冶炼过程中存在的主要环境问题,提出具有针对性的环境保护措施,以实现资源开发的可持续利用,促进经济建设与环境保护协调发展。     

自动化立体仓库货位可移动式货架研究

本文讨论了自动化立体仓库的货位可移动式货架系统,对这一类货架的结构与控制系统进行了说明,并讨论了货架系统的进出货流程与货架内货位轮换的工作流程。这一类货架系统可分层制造,按需组合,控制灵活性高,可以节省立体仓库成本,并提高货物存储效率。     

GIS和Zigbee在煤矿井下人员实时定位的应用

文章主要介绍GIS技术、Zigbee技术和CC2430芯片概况,根据RSSI定位和三边测量算法原理,提出采用GIS技术与Zigbee技术相结合组建而成的煤矿井下人员实时定位设计,该设计能真正实现对井下人员全方位的实时定位,具有功耗低和成本低廉的特点。     

GIS和Zigbee在煤矿井下人员实时定位的应用

文章主要介绍GIS技术、Zigbee技术和CC2430芯片概况,根据RSSI定位和三边测量算法原理,提出采用GIS技术与Zigbee技术相结合组建而成的煤矿井下人员实时定位设计,该设计能真正实现对井下人员全方位的实时定位,具有功耗低和成本低廉的特点.     

一种龙胆草清洗机的原理

龙胆草在采收后,根系间夹杂有泥土等需要去除的污物,在储藏、二次加工或有效成分提取之前都要经过清洗,传统清洗方法不仅耗时费工,而且消耗大量的淡水,更有甚者使用化学洗涤剂,造成龙胆草的二次污染;超声波清洗技术因其不受清洗件表面复杂形状的限制,清洗时间快、效果好和无污染等特点,而被广泛应用于各个领域。将微幅振动及超声波清洗技术引入龙胆草的清洗过程,在不增加任何其他洗涤剂的情况下,将龙胆草根茎清洗干净。