汽车柴油发动机可靠性试验的重要性和必要性

文章针对当前汽车柴油发动机产品在可靠性方面存在的主要问题,结合国家试验标准,通过列举某台国产汽车柴油机可靠性试验中出现的故障情况及排除措施,纠正此类可靠性试验保养操作中的常见误区,阐明进行汽车柴油机可靠性试验的重要性和必要性。     

CFM56-7B发动机振动指示故障分析

本文从原理上分析为什么要对发动机进行风扇叶片的配平,以及在何时需要对发动机风扇叶片进行配平,最后分析如何完成对发动机风扇叶片的配平工作。     

博客营销在企业网络营销中的作用管窥

互联网的迅猛发展给博客(BLOG)提供了一个迅速成长的成熟环境。而企业在网络营销业务中的博客营销则是一种基于包括思想、体验等表现形式的个人知识资源及它的网络信息传递形式。这种网络营销工具已在企业网络营销业务中起到越来越大的作用。     

A case study of condition based maintenance modelling based upon the oil analysis data of marine diesel engines using stochastic filtering

This paper presents a case study of condition based maintenance modelling based on measured metal concentrations observed in oil samples of a fleet of marine diesel engines. The decision model for optimising the replacement time of the diesel engines conditional on observed measurements is derived and applied to the case discussed. We described the datasets, which were cleaned and re-organised according to the need of the research. The residual time distribution required in the decision model was formulated using a technique called stochastic filtering. Procedures for model parameter estimation are constructed and discussed in detail. The residual life model presented has been fitted to the case data, and the modelling outputs are discussed.     

浅谈消防车辆主要部件维护

为了保护改革开放带来的经济成果,近年来越来越多行业采购消防车辆,消防车辆成倍增加,维护消防车辆的问题就迫切地摆在了我们面前。文章从使用维护的角度谈谈如何维护消防车辆。     

Travel queries on cities in the United States: Implications for search engine marketing for tourist destinations

Given the growing importance of search in online travel planning, marketers need to better understand the behavioural aspect of search engines use. Built upon a number of previous studies, the goal of this research is to identify patterns in online travel queries across tourist destinations. Utilizing transaction log files from a number of search engines, the analysis shows important patterns in the way travel queries are constructed as well as the commonalities and differences in travel queries about different cities in the United States. The ratio of travel queries among all queries about a specific city seems to associate with the “touristic” level of that city. Also, keywords in travelers' queries reflect their knowledge about the city and its competitors. This paper offers insights into the way tourism destinations are searched online as well as implications for search engine marketing for destinations.     

Relationships of Perceived Justice to Service Recovery,Service Failure Attributions,Recovery Satisfaction,and Loyalty in the Context of Airline Travelers

In recent years, hospitality and tourism researchers have presented their findings of many studies on website performance and evaluations. Although these prior studies have achieved a certain degree of success for assisting industrial practitioners to develop and maintain their websites, it remains largely unknown how consumers find a specific travel or hotel website. This paper reports a study that investigated the perceived importance of different channels for finding travel or hotel websites from an international travelers' perspective. Empirical results from 153 travel or hotel website users indicated that the Google search engine was the only channel that was perceived as important, and 47.4% of the respondents viewed up to three screens in the list of search results when using search engines. The paper should be of interest to industrial practitioners and academic researchers to understand better the behavior of users of travel and hotel websites during their website search procedure.     

Tax policy implications for a two‐engine growing economy

In an endogenous growth model with two engines of R&D and capital, we investigate the environment of “inclusive growth” for tax reallocations (tax increases or tax credits) to gain broader benefits in terms of promoting the overall GDP growth without an increase in income inequality. Our results show that a tax increase in the capital‐good sector can result in inclusive growth, boosting overall growth and reducing income inequality, provided that the status quo tax rate is not too high. Surprisingly, tax credits are not able to achieve such inclusive growth. While the GDP growth rises, a tax credit in the R&D sector not only increases income inequality but also decreases the aggregate employment, if the labor mobility cost between the final‐good and R&D/capital‐good sectors is relatively low. This provides a caution to policymakers given the fact that research tax credits have served as a common incentive to strengthen the R&D environment.     

基于搜索引擎平台的在线旅游互动营销整合模式研究

近年来,在线旅游领域中专业垂直搜索引擎的兴起及其影响力令人瞩目,旅游垂直搜索引擎在极大方便旅游者在线消费和旅游供应商信息发布的同时,日益彰显出其过滤与筛选信息的网络话语权力。但在当今消费日益个性化的体验经济时代,以经济效用最大化和产品组合为核心价值的垂直搜索结果并不能实现真正的顾客满意,甚至有时在SEO的人为干扰下误导消费者．立足于消费者和服务商双方利益最大化目标,探索了一种以专业垂直搜索引擎为导引,能够全面整合门户网站、专业网站、论坛社区及博客等多重链接的营销模式,该平台通过供需双方的互动沟通,将信息搜索和消费者关注点引向主题不断深化的开放式社会媒体和支持决策的专业数据窗口．通过平台的互动沟通功能,不断将消费者的出游意愿清晰化,不断触发与旅游决策相关联的专题新闻、博客／论坛、游记评论的多重链接,营造感性化色彩浓厚的旅游软营销氛围;并能根据旅游者的消费介入需要,将搜索链接持续深化地引向对专业网站进行分析整合后形成专业数据窗口,为其消费决策提供关键的信息支持．该跨平台营销模式所具有的中立性和互动性能较好地提升消费者的网络体验、信任度和消费决策质量．     

A simple model of vertical search engines foreclosure

By means of a simple model with consumers' search, the paper analyzes a monopolistic general search engine incentives to bias organic and sponsored search results in order to favor an integrated website. In the model, manipulation takes place whenever the general search engine places prominently its own vertical search engine instead of the most relevant for consumers. The main finding is that the incentives to manipulate search results are stronger in the organic search case. In the sponsored search case the general search platform internalizes the impact of manipulation on profits, since the less a prominent vertical search engine is relevant to consumers, the lower is the price-per-click that the general search engine can charge.