Reliability modelling and analysis of a two unit continuous casting plant

The aim of this paper is to present a reliability modeling and analysis of a two-unit system of a continuous casting (CC) plant. Real maintenance data of a steel production plant have been used for the purpose. Three types of failures were noted: repairable, replaceable and reconditioning/reinstallation. The two-unit system is operating in parallel, on full-reduced installed capacity. Upon the unit failure, an inspection is carried out to decide the type of maintenance task to be performed. Optimized reliability indices of the plant such as mean time to system failure, availability, expected busy periods of the repairman for various maintenance tasks, expected number of visits by the repairman, expected number of repairs, replacements and reconditioning/reinstallation are obtained. Semi-Markov processes and regenerative point techniques are used for the analysis. Profit incurred to the CC plant is also evaluated and related graphs are plotted to demonstrate the results.     

Enterprise Information Portals in support of business process, design teams and collaborative commerce performance

Enterprise Information Portals (EIPs) have been widely adopted as platforms for the integration of knowledge management and information technology (IT). This study has been conducted from the knowledge management perspective in order to examine the influence of EIPs on collaborative commerce in the automobile industry. This study explores the integration of internal and external business processes and the coordination of collaborative design teams. An initial qualitative investigation explores the practical applications of an EIP in an automobile company. A research model is then formulated and tested using a questionnaire survey of the R&D department of a motor company in Taiwan. The results of the data analysis reveal that presence of EIPs can help a company realize the benefits of c-commerce. EIPs also can improve collaborative commerce performance by promoting the degree of integration of the enterprise process and by strengthening the process innovation and communication of collaborative design teams. The results suggest that managers should reinforce important factors, including knowledge management tools, process integration, and the quality of design teams, in order to achieve success in collaborative commerce.     

Analyzing the impact of knowledge management on CRM success: The mediating effects of organizational factors

Customer relationship management (CRM) and knowledge management (KM) have become key strategic tool for all companies, especially in the current competitive environment. Moreover, customer knowledge is an important issue for CRM implementation. Reviewing the literature, we found many studies that analyze the crucial role played by KM initiatives as determinants of the success of CRM. Moreover, we found also diverse studies that show high rates of failure when implementing that strategy, so there is still no integrated conceptual framework to guide companies to their successful implementation. In this paper, with data of 153 Spanish hotels, we examine the relationships between KM and CRM success using a structural equation model. The main contribution is that having knowledge management capabilities is not sufficient for the success of CRM, but there are other factors to consider. In particular, organizational factors indeed impact CRM success and they appear to be intermediaries of the impact of other factors (KM capabilities/technological/customer orientation factors) in the success of CRM (in financial and marketing terms).     

一种基于RFID技术的定位算法实现

简单介绍了射频识别的基本原理,特别是在室内定位中的应用。重点介绍了LANDMARC室内定位系统理论及其改进,使其可以更好地应用于实际环境。实验结果表明,改进的算法比原来的算法在定位精度上提高了10%～30%。     

中国高水碘地区的分布与干预对策

中国通过普及食盐加碘（Universal SaltIodization,USI）消除碘缺乏病,并持续巩固了防治成果。随着碘缺乏病防治工作的顺利开展,高水碘问题也引起了关注。为了了解和掌握我国水源性高碘问题及干预状况,开展了相关调查。通过查阅有关文献资料和访谈,了解高水碘地区的分布状况、监测工作进展情况、采取的干预措施等;通过深入高碘县的高碘村,了解停供碘盐和改水措施的落实、群众的认知等情况;并请县级盐业部门人员参加,探讨供应不加碘食盐的措施和对策。本报告的主要内容包括：高水碘地区的分布状况,监测工作进展情况,采取的干预措施及其落实情况,存在问题和建议等。     

我国科技成果转化过程监测指标体系探讨

加快科技成果转化已成为我国当前科技管理领域的重大任务之一,但当前我国对于科技成果转化过程的监测仍然不成体系,事实数据的匮乏已成为制定和实施有效的科技成果转化政策的重要障碍.为全面、系统地监测科技成果的转化过程及其绩效,本文在全面树立科技成果转化的概念及其分类的基础上,系统梳理了各类科技成果的一系列转化过程,并根据其转化过程的差别提出了一套动态监测科技成果转化效果的指标体系,最后探讨了该指标体系如何更好地应用于实践.     

自助服务技术环境下的顾客参与及其影响因素研究

随着信息技术的发展和互联网的广泛运用,自助服务技术(SSTs)环境下的顾客行为研究已经成为服务营销领域倍受关注的热点.本文以网上旅游预订为例,结合技术接受模型(TAM)和动机理论,系统探讨了角色清晰、动机、自我效能对顾客参与的影响,并得出以下结论:(1)网上旅游预订环境下,顾客参与可以分为信息搜寻、付出努力和信息分享三个维度.(2)感知愉悦、感知行为控制、自我效能和感知易用对顾客参与产生显著的正向影响,其中感知愉悦的影响最大.(3)各前置变量时顾客参与子维度的影响程度各不相同.根据研究发现,本文提出了相关的营销建议以供实际运用.     

企业影响政府/行业的能力与新产品绩效关系研究

 转型时期的中国,高度不确定的环境往往是因为政府政策和干预行为的连续变化以及高度的行业竞争带来的。基于动态能力的资源观点,企业影响政府的能力和影响行业的能力是企业适应外部环境的动态能力之一,这两种能力可以降低政治环境和市场环境的不确定性,从而提高新产品开发绩效;并且政府干预对两种能力与新产品绩效的关系具有一定的调节作用。应用分层多元回归模型,对陕西省178家企业的问卷调研数据进行分析。研究结果表明,这两种能力对新产品绩效都有积极的促进作用,且两者的交互也将促进新产品绩效;政府干预对两种能力与新产品绩效关系的调节是倒U型的,即适量的政府干预可以促进两种能力与绩效之间的积极关系,而当干预过多,则降低了企业的柔性,削弱了企业对环境的敏感度,从而对两种能力与新产品绩效之间的积极关系产生消极作用。     

科学技术可视化

随着科学技术的不断发展,新兴技术大量涌现,技术的发展呈现出学科内纵向深入,学科间交叉融合的新特点与新趋势。因此,如何及时把握新兴技术的动态,寻找发展路径,已成为当前科学研究的热点问题之一,基于科学学理论和传统技术评估与预测研究,总结提出了“科学技术可视化”概念,从“科学技术可视化”研究的必要性出发,综合评述了当前国内外“科学技术可视化”的发展状况,并构建了一套适用于“科学技术可视化”图谱的分类体系与辅助决策框架,为科技决策中“科学技术可视化”方法的应用提供了依据。同时,还总结了当前“科学技术可视化”研究中具有代表意义的经典图谱,并总结出了一套“图法”与“图空间”概念,为如何绘制“科学技术可视化”图谱提供了参考。     

一种基于行为的XSS客户端防范方法

跨站脚本(XSS)漏洞是Web安全的最大威胁之一.目前XSS防范方法主要为在服务端对用户输入进行过滤.这种方法漏报率较高,且不能及时保护互联网用户.通过对XSS攻击行为,尤其是XSS蠕虫的传播行为进行深入分析,设计并实现了一套新的基于行为的客户端XSS防范方案StopXSS.通过实验及与现有常用客户端XSS防范方案比较,证明其具有对XSS攻击,甚至对0-Day XSS蠕虫的防范能力.