Co-presence and mobile apps: Technology's impact on being with others

Despite a lack of theoretical understanding regarding how consumers react when using mobile applications in a store, the latter are being used more and more often in shared consumption areas. This research explores the impact that using a mobile application has on perceptions of co-presence. Depending on the consumption experience stage, this technological tool can be a social facilitator that enhances interactions with companions or a device that makes it possible to reduce a negative crowd impression. This paper is positioned at the intersection of interpersonal influence research and research focused on mobile technologies' effect on the purchasing process. It may interest managers of sites where there is high co-presence and where a mobile application might reduce negative crowd impressions and facilitate in-group sharing.     

Hosting as social practice: Gendered insights into contemporary tourism mobilities

By giving voice to highly-skilled mobile professional women who have relocated to Switzerland from various European countries, representing different nationalities, duration of migration and family circumstances, we shed light on the experiences of hosting – an under-researched segment of Visiting Friends and Relatives (VFR) mobilities. Our findings reveal a threefold investigation to sociality, tourism and mobility, by drawing on empirical insights to three angles: that of, culture, intimacy and identity as pathways to transformative social practices among hosts and guests. Highly-skilled mobile professional women’s hosting practices reflect a laboratory of sociality whereupon relations of closeness and proximity are tested under new conditions of social and private life in the new destination country.     

基于多维频谱地图的干扰规避

针对复杂电磁环境下卫星移动通信系统可靠通信需求，利用频谱地图多维数据呈现优势，提出了基于多维频谱地图的干扰规避方法。通过建立卫星移动通信系统波束、时隙、子频带、干扰强度等多维信息关联的频谱地图，利用数据挖掘方法对频谱可用情况进行预测，基于预测结果及用户QoS(Quality of Service)需求生成干扰规避策略，通过星地联合频谱资源调配实现系统干扰规避。该方法为卫星移动通信系统干扰规避提供了一种全新的思路，可提升卫星移动通信系统干扰防护能力。     

基于改进指纹聚类的WLAN定位优化方法

将K-means聚类算法应用到无线局域网（WLAN）位置指纹定位中，虽然可以缩短定位时间，但是容易降低定位精度。为了解决此问题，提出了基于改进指纹聚类的WLAN定位优化方法。首先根据接收信号强度标准差来优化初始聚类中心的选取,然后对指纹数据进行聚类处理,最后进行在线定位。实验结果表明，与传统的WLAN位置指纹定位方法和K-means聚类定位方法相比，基于改进指纹聚类的定位优化方法不仅缩短了定位时间，还能有效提高定位精度。     

Exploring the determinants of usage continuance willingness for location-based apps: A case study of bicycle-based exercise apps

This paper investigates how mobile app design and social media can be used to influence the intention for continued use of location-based mobile apps. Uses and gratification theory and information systems success model are used to explore the key factors of continued usage intention. Three hundred and fifty-six valid questionnaires were collected to test the research model. The results showed that perceived usefulness, enjoyment, sense of belonging would significantly influence the usage habit and satisfaction of bicycle-based exercise app. In particular, the habit and satisfaction had strong impact on the intention for continued use. This study extended the findings of exercises with mobile apps and provided implications for the developers and operators of fitness and leisure-oriented apps.     

移动网络数据中大数据处理的关键技术探索

最近几年以来,我国科技水平持续提升,计算机网络技术也逐渐在各行各业中获得了广泛运用,这也使得信息技术的深度融合发展受到一定的促进,数据规模愈发庞大,在此背景下,开始演变成大数据供不应求的状况。为此,国内陆续推出了一系列相关的管理法规与条例,同时扩大了对大数据的探究创新力度,有效提升了移动通信网络处理数据的速度,这同时促使国内移动通信网络中有关大数据的研究内容更为明晰,由此可知,针对大数据的相关研究具有一定必要性。     

Building Mobile Brand Equity: The Mediating Roles of Perceived Values

This research tests the mediational roles of hedonic and utilitarian values consumers receive from using mobile data services (MDS) on the relationship between mobile commerce experience and mobile provider brand equity. A theoretical model was developed based on a review of the existing literature, and a survey was developed to test the model using a sample of 371 students in major universities in Jordan. The structural findings showed that MDS experience positively influence MDS provider image, which positively influenced both utilitarian and hedonic values, the effect being stronger for the utilitarian value. Moreover, both types of perceived values from using the MDS fully mediate the effect of MDS provider image on mobile equity.     

An Empirical Segmentation of Users of Mobile Banking Apps

Digital technologies have squeezed the entire world into a small frame. Trade and transactions never stop, and they go where the customer is. Marketers must reinvent their strategies and toolkits to win in this hyper-connected world. Companies are creating new and improved ways for engaging and involving their consumers, and one significant tool now used by companies for these purposes is the app. Mobile phones have registered the highest growth among all technological evolutions, and mobile apps are proliferating. Apps are being used across a diverse range of industry verticals, including banking, e-commerce, travel, and tourism. This article studies a set of twenty different banking apps and segments consumers based on their adoption and usage of the apps. This article emphasizes the role of mobile technologies to change established channels and banking services, and also analyzes how the Indian banking sector has benefited from the adoption of mobile apps.     

电机车架线自动断电系统在焦家金矿的研究与应用

本文分析了运用脉冲信号检测,触发矿山井下电机车架线供电控制,直到电机车驶离控制区或拉下架线集电弓后,主机延时断电的原理与应用,解决了矿山井下电机车架线运行时长距离,长时间带电的弊端。是消除事故隐患,减少和避免人身触电事故的有效措施。     

一种改进的CPFSK信号频率估计方法

针对突发信号解调中多普勒频偏大的问题，提出了一种改进的连续相位移频键控信号(CPFSK)频率估计方法。首先接收信号平方运算使信号的调制指数加倍，再通过一次离散傅里叶变换(DFT)，用搜索信号平方谱谱峰的方法实现突发信号频率估计。仿真实验表明，在低信噪比条件下，该算法的频率估计精度比经典的相位差频率估计算法提高了20%；该算法与广泛用于高动态突发信号的频率插值估计算法相比，同道干扰信道下信干比改善可达4 dB，DFT长度缩短约1/3。