Factors affecting users’ continuance intention of mobile social network service

This study investigates the factors that influence users’ intention to continue using social network service applications (apps) on mobile devices. We drew on the uses and gratifications (U&G) paradigm and innovation diffusion theory; these were augmented with the factors that characterize mobile social network service (MSNS) usage. The proposed framework explained the relationships between these factors and the intention to continue using MSNS apps. A web-based survey was used to collect data for analysis. The results indicated that critical mass, mobility, compatibility, purposive value, and entertainment value were important drivers of users’ intention to continue using MSNS apps. The findings contribute to existing U&G paradigm, innovation diffusion theory, and MSNS usage literature. The paper closes with a discussion of useful insights relevant to researchers and practitioners in terms of developing and implementing MSNS apps that have high retention rates.     

基于SDN和MEC的5G VANET架构及其性能分析

为了在大规模的车载自组织网络（Vehicular Ad-hoc Network,VANET）中提供灵活的网络管理、控制和提高资源利用率,结合软件定义网络（Software Defined Network,SDN）、云无线接入网络（Cloud Radio Access Network,C-RAN）和移动边缘计算（Mobile Edge Computing,MEC）,提出了一种分层的5G VANET架构（5G MEC VANET）,能够支持智能交通系统各种功能和应用的动态特性,同时降低网络管理成本。此外,位于网络边缘的MEC框架避免了车辆与路边基站的频繁交互,减少了数据传播延时。仿真结果表明,与传统VANET和5G VANET架构相比,所提出的架构降低了传播时延,提高了网络带宽吞吐量,同时减少了控制器开销。     

Social Innovation,Gender, and Technology: Bridging the Resource Gap

Some of the most important resources are intangible, such as knowledge and access to networks. In the developing world, technology can facilitate these resources and address basic human needs in a variety of ways: from provision of farmer training and cloud-controlled clean water systems to health information and mobile money services. Some of these services expand access to resources in ways that particularly benefit women. In environments where women are disadvantaged socially and economically, information and communications technologies (ICT) can enable women to access valuable information, consider a broader range of business opportunities, access wider markets, partake in educational programs, and share experiences with and gain mentorship from other women. However, there are large gender gaps in the access to technology, particularly in rural areas. To begin, I briefly discuss the role of technology in development, and consider the extent and significance of technology gender gaps. Next, I review key barriers to reducing these gaps, and discuss the concept of social innovation as it applies to technology interventions. Examples from five social innovations in India — a country with large technology gender gaps — illustrate the range of possibilities for innovative access to and use of ICT for diverse target groups. I conclude with some suggestions for further improvement in this area.     

基于DSP的移动基站信号监测设备设计

针对移动基站信号时域分 析和频域分析的需求,提出了利用DSP等芯片组成可行的TMS320F28234最小系统和RS-232/US B通信转换模块的硬件实现方案。通过分析应用实数FFT算法和串口通信协议,有效地完成信 号的采集、A/D转换、频谱分析和下位机与上位机之间的通信,以及信号分析等功能,从而 了解通信系统的运行状况,为移动基站的正常运行提供保障。     

移动医疗APP的发展与应用监管研究

通过近3年的文献研究和市场调查,总结了移动医疗APP在功能作用、设计、与用户关系和监管等方面的研究进展,阐述了移动医疗APP的优势和发展历程。移动医疗APP的出现在推动我国医疗事业发展的同时带来了相应的监管挑战,表现在远程医疗诊断风险高、用户隐私保护不到位、信息真实性难验证、虚假医疗广告多和纠纷侵权难处理五个方面。移动医疗APP的进一步发展需要技术和管理上的创新,才能提升互联网医疗服务水平和质量。     

消费者对移动增值服务的感知风险外向因素及其中的调节效应研究

对消费者感知风险的相关研究大多集中在其对消费者行为的影响上。本文创新之处在于,从感知风险来源的视角对移动增值服务环境下消费者感知风险进行了研究,证实了消费者对移动增值服务感知风险的前因变量和消费者个性特征对风险关系的调节效应。基于委托代理理论,提出了移动增值服务环境下的感知风险关系模型,然后采用结构方程模型和多元回归的方法对假设进行了检验。结果表明,移动增值服务环境下,消费者感知信息不对称对感知风险影响最大,消费者感知技术不确定和移动增值服务的无形性对感知风险也有积极的影响,消费者风险偏好和移动商务知识对风险关系具有显著调节效应。     

全球化背景下中国手机制造产业的空间格局及其影响因素

文章揭示了手机产业空间格局的演变过程,并分析影响手机产业空间格局形成和演变的因素。在手机产业的发展过程中,逐步形成了北京、天津和深圳三个全国最大的手机产业集聚区。外商直接投资、国家的产业政策以及产业网络的形成是影响中国手机产业空间格局的关键因素。外商直接投资企业进入中国的区位选择奠定了中国手机产业空间格局的基础,而国家的手机产业政策也影响了手机产业的分布,甚至在一定程度上强化了过去的产业空间格局。随着产业管制的解除和市场竞争的加剧,产业集聚区进一步壮大,而本地生产网络成为其发展的关键力量。     

引入移动agent技术的动态电子商务交易框架的设计

本文针对电子商务中存在的问题,将四种主要的分布式计算技术的特点与动态电子商务进行比较,根据比较情况将移动Agent技术应用在动态电子商务的建设中,并对引入移动agent技术的动态电子商务交易框架进行设计。希望对我国的电子商务建设工程有所帮助。     

Adoption and use of mobile banking by low‐income individuals in Senegal

The wide use of mobile phones increases low‐income individuals’ access to a large range of services. One of these services is mobile banking (m‐banking). Today, m‐banking represents a key vector of financial inclusion in many countries in sub‐Saharan Africa, especially Senegal. Based on technology adoption theories applied to households in developing countries, this paper studies the determinants of the adoption and use of m‐banking. We distinguish between possession or adoption and actual use of m‐banking and examine the interdependence between these two decisions by using the Heckman sample selection model, through a sample of 1,052 individuals in the suburbs of Dakar. Our main results are that the two decisions (adoption and use) are not independent of each other. Individual characteristics, such as education, possession of a bank account, and family network effects, are determinants of the adoption, and age, gender, and being a member of a tontine are determinants of the use. A major result of this study concerns women’s low propensity to adopt m‐banking because of their low levels of education. However, compared with men, when women adopt m‐banking, they have a stronger propensity to use it.     

An Exploratory Study of Convention Specific Social Media Usage by Attendees: Motivations and Effect of Generations on Choice of Convention Information Source and Intention to Use Mobile Application

While social media and mobile devices have grown as important tools of communication and marketing in the meeting industry, limited research has explored convention attendees’ perception of convention specific social networking media and what the motivations are for attendees’ adoption of using convention specific social media. This study aims to identify convention attendees’ motivations of using convention specific social media and demands of convention specific mobile applications. This study also investigated how attendees’ generation affects their selection of convention information sources and attitude toward mobile applications. Based on the identified key motivations of using convention specific social media, convention organizers need to build social media that provide up-to-dated convention information as well as a functionality of building community among attendees. The findings also show that generation affects the choice of convention information source and intention of mobile applications usage. This study identified the most demanded convention mobile applications including, exhibitor directory search, convention floor plan, and convention itinerary planner. This study can be used as a basis for more extensive examinations of the use of social media in conventions and for empirical testing of convention attendees’ attitudes toward convention social media and mobile applications.