小型移动终端天线设计的改进

在阐述了小型移动终端天线传统设计思想的基础上，考虑到人体影响及比吸收率(SAR)问题等因素，讨论了天线设计改进的途径如采用平衡结构等；并针对现代移动通信系统的要求讨论了自补偿天线、一体化以及软件天线等新的天线设计思想，为小型移动终端天线的近一步研究提供参考。     

Consumer product search and purchase behaviour using various retail channels: the role of perceived retail usefulness

The purpose of this study was to examine the influences of consumers' perceptions of retail usefulness for product information search and their previous purchase satisfaction on their frequencies of product information search and product purchase behaviours for apparel products. These relationships were investigated in five retail settings – Internet shopping, catalogue shopping, television shopping, local retail shopping, and non‐local retail shopping. One hundred seventy‐six students in a US Midwestern university provided usable responses. The results of causal model analyses showed that the proposed model fits the data well for all five retail channels. Consumers who perceived a certain retail channel more useful for product information search searched for product information more frequently via that retail channel, and purchased products more often via that retail channel. Consumers who were more satisfied with apparel purchases from a retail channel purchased the products more frequently via that retail channel. Theoretical and managerial implications are discussed.     

移动通信行业物流外包供应商评价模型的实证研究

通过运用层次分析法(AHP)对移动通信行业物流外包供应商评价模型的相应因素进行权重量化,为移动通信企业选择合适的供应商提供数字化定量模型依据。文中选取北京移动通信行业一家公司的典型物流外包项目—账单集中制作全外包服务作为案例,通过运用这一数字化定量模型实现对参评供应商的企业实力进行了评价和选择(即评价因素得分*权重=最终评价),并通过现场考察的方式对中标供应商的效果进行了跟踪评价。     

Realistic Portfolio Allocation Decision-Making For The Small U.S. Retail Investor

This study introduces new domestic mixed-asset and international equity securities that allow for exact portfolio replication even by small U.S. retail investors. Using these new series, various return characteristics are examined. Finally, three sets of mean-variance analyses are conducted: a domestic equity sector-only portfolio, a domestic mixed-asset portfolio, and an international mixed-asset portfolio. Real estate warrants inclusion to varying degrees in all three portfolios. International equity inclusion was also demonstrated.     

Mobile Termination: What is the “Right” Charge?*

The regulation of fixed-to-mobile (F2M) termination charges has become increasingly important in Europe, Australia, and New Zealand under the Calling Party Pays principle. In the absence of any regulation, mobile operators have an incentive to set F2M termination charges “too high”. We show that the setting of the optimal F2M termination charges depends on the significance of network externalities, the intensity of competition in the mobile sector, and the distribution of customer preferences. We also discuss the merits of possible remedies which are not very intrusive. Tommaso Valletti has advised the European Commission and the UK regulator (OFCOM) on mobile termination and Frontier Economics has acted as advisor to a number of mobile operators on the same issue. The views expressed in this paper are those of the authors alone. We thank Carlo Cambini, Yulia Kossykh, participants to the 15th Biennial International Telecommunications Society Conference, the 3rd International Conference on Applied Infrastructure Research in Berlin, for their comments. We also thank the editor Michael Crew and two anonymous referees for many suggestions that have greatly improved the paper.     

零售企业构建农村连锁经营网络的动力机制

零售企业是深化我国农村流通体制改革的重要力量,文章结合典型企业案例分析了零售企业构建农村连锁经营网络的动力机制,研究表明规模经济、范围经济、密度经济是推动零售企业构建农村连锁经营网络的内生动力源泉。在深化农村流通体制改革中,政府和企业需要选择科学的流通创新扩散模式,充分发挥规模经济、范围经济、密度经济力量构建高效的农村连锁经营网络。     

关于员工心理报酬问题的调查——以我国民营零售企业销售人员为例

现代企业在管理员工的过程中,不仅要给予员工适当的经济报酬,还必须重视员工的心理需求,只有如此才能提高员工的工作满意度.文章通过调查研究发现,民营零售企业中的销售人员和管理者对于心理报酬概念模糊,现行薪酬制度有待完善,心理报酬制度在企业中尚未普及,在应用中存在很多问题.而且,很多销售人员工作满意度很低,因自身心理报酬未被满足而离职的销售人员不在少数.为更好地满足员工需求,提高员工工作满意度,发掘员工内在潜力,激发员工工作热情,企业应转变观念,重视心理报酬的重要作用;让员工了解心理报酬的含义、构成、重要性,参与心理报酬制度制定过程;应采取得力措施帮助员工缓解压力,使员工保持身心健康和积极的工作状态;应优化工作环境,建立和谐的人际关系;应重视激励设计,让激励真正发挥作用.     

试析媒介融合背景下二维码对广告业的影响

在媒介融合的时代背景下,手机广告作为一种新兴的广告形式日益引起人们广泛关注。相对于传统媒体广告,二维码广告具有受众卷入程度高、传播内容立体化、较强的伴随性和互动性等特点。本文从精确测定广告效果、精准定位消费者、拓宽广告营销渠道、改变广告传播方式等四方面探讨了二维码对广告业的影响,并预测随着互联网的发展、智能手机的普及、3G服务的渗透,手机直接访问互联网将越来越便利,二维码这一新型广告形式将大有作为。     

一种新的基于MR的移动网络越区覆盖判别算法

针对移动网络系统中普遍存在的越区覆盖问题,提出了一种新的低成本的越区覆盖判 别的新算法,从而提高网络的性能指标。该算法通过在Iub接口中实时采集信令MR帧,并对 其MR帧进行同步解析获取其帧结构中的相关数据,在考虑用户切换掉话的多种场景下提出了 基于邻区判别的越区覆盖侦测方案。实验结果显示该方法可以有效解决越区覆盖问题。     

网上零售影响社会物流发展的定量分析

通过多元线性回归等方法分析,在其他因素不变情况下,发现网上零售交易规模的边际社会物流需求大于零并且呈现递减规律,网上零售市场发展可促进高效率物流对低效率物流的替代作用。