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Int. J. Handheld Comput. Res.最新文献

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The Impact of Zoning Concept on Data-Flow Management within LBS System Components 分区概念对LBS系统组件内数据流管理的影响
Int. J. Handheld Comput. Res. Pub Date : 2010-01-01 DOI: 10.4018/jhcr.2010090903
S. A. Masri, Z. Hunaiti
{"title":"The Impact of Zoning Concept on Data-Flow Management within LBS System Components","authors":"S. A. Masri, Z. Hunaiti","doi":"10.4018/jhcr.2010090903","DOIUrl":"https://doi.org/10.4018/jhcr.2010090903","url":null,"abstract":"Typical Location Based Services (LBS) system is compound of a mobile device with positioning capability connected to a LBS service provider via wireless network. Thus, the efficiency of LBS System depends on each sub-element composing its architecture. One of the most important factors affecting LBS efficiency is the volume of data streamed from the server to the client. This problem has emerged as a consequence of customer demands for richer services such as videos and high-quality pictures. Therefore this paper discusses the impacts of transmitting huge size of information and services on: the mobile devices, wireless networks and the data server. In addition, it introduces a mechanism to improve the data flow based on the zoning concept in which data is organised in individual databases and then streamed gradually according to the end user’s new location. The outcome of the evaluation of this mechanism has shown better utilisation of the mobile device resources (memory and battery) as well as reducing the network and server consumption time.","PeriodicalId":265963,"journal":{"name":"Int. J. Handheld Comput. Res.","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123656923","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
Securing Mobile Ad Hoc Networks: Challenges and Solutions 保护移动自组织网络:挑战和解决方案
Int. J. Handheld Comput. Res. Pub Date : 1900-01-01 DOI: 10.4018/IJHCR.2016010103
Sunil Kumar, Kamlesh Dutta
{"title":"Securing Mobile Ad Hoc Networks: Challenges and Solutions","authors":"Sunil Kumar, Kamlesh Dutta","doi":"10.4018/IJHCR.2016010103","DOIUrl":"https://doi.org/10.4018/IJHCR.2016010103","url":null,"abstract":"The flexibility and openness of mobile ad hoc networks MANETs make them attractive for various types of applications such as military communication, emergency search and rescue operations, disaster recovery, battlefields, communication between moving vehicles VANET etc. However, MANETs are highly susceptible to various security threats due to their inherent characteristics that can adversely affect their performance. In order to provide secure communication in mobile ad hoc networks, it is required to understand various possible attacks at different layers of the communication protocol stack. The intent of this paper is to provide structured and comprehensive study of prominent security attacks reported in the literature for mobile ad hoc networks. In addition, we also discuss various well-known reactive and proactive security solutions proposed in literature to prevent those attacks in MANETs. Finally, the paper is concluded with a brief discussion on future direction of research in MANETs.","PeriodicalId":265963,"journal":{"name":"Int. J. Handheld Comput. Res.","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117351147","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 13
Technologies for Wellbeing and Healthy Living: Perspectives and Challenges 福祉和健康生活的技术:观点和挑战
Int. J. Handheld Comput. Res. Pub Date : 1900-01-01 DOI: 10.4018/ijhcr.2014010103
Jochen Meyer
{"title":"Technologies for Wellbeing and Healthy Living: Perspectives and Challenges","authors":"Jochen Meyer","doi":"10.4018/ijhcr.2014010103","DOIUrl":"https://doi.org/10.4018/ijhcr.2014010103","url":null,"abstract":"It is a strange paradox that the public is talking about health technology but cares more about disease technology: people address chronic diseases, people want to change unhealthy behaviors, people aim to help carers and nurses-but people hardly ever look at those who are and want to remain healthy. This is even stranger, as times of health outnumber periods of disease in most persons` lifetimes. Somewhat surprisingly, technology available today is not yet optimally suited to help staying healthy. The authors discuss challenges with respect to the adaption of health behavior models, long-term interaction, quality of data, design of devices, primary use of data, and life-long data. And the authors suggest understanding technical systems for wellbeing as navigational systems, guiding a person through life on a healthy path.","PeriodicalId":265963,"journal":{"name":"Int. J. Handheld Comput. Res.","volume":"27 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116424561","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Imperceptible Simplification on Mobile Displays 移动显示的难以察觉的简化
Int. J. Handheld Comput. Res. Pub Date : 1900-01-01 DOI: 10.4018/jhcr.2012010103
Fan Wu, E. Agu, Clifford Lindsay, Chung-Han Chen
{"title":"Imperceptible Simplification on Mobile Displays","authors":"Fan Wu, E. Agu, Clifford Lindsay, Chung-Han Chen","doi":"10.4018/jhcr.2012010103","DOIUrl":"https://doi.org/10.4018/jhcr.2012010103","url":null,"abstract":"Graphics on mobile devices is becoming popular because untethered computing is convenient and makes workers more productive. Mobile displays have a wide range of resolutions that affect the scene Level-of-Detail LoD that users can perceive: smaller displays show less detail, therefore lower resolution meshes and textures are acceptable. Mobile devices frequently have limited battery energy, low memory and disk space. To minimize wasting limited system resources, the authors render mobile graphics scenes at the lowest LoD at which users do not perceive distortion due to simplification. This is called LoD the Point of Imperceptibility PoI. Increasing the mesh or texture resolution beyond the PoI wastes valuable system resources without increasing perceivable visual realism. The authors propose a perceptual metric that can easily be evaluated to identify the LoD corresponding to a target mobile display's PoI and accounts for object geometry, lighting and shading. Previous work did not directly compute changes in the PoI due to target screen resolution. The perceptual metric generates a screen-dependent Pareto distribution with a knee point that corresponds to the PoI. We employ wavelets for simplification, which gives direct access to the mesh undulation frequency that we then use to parameterize the CSF curve.","PeriodicalId":265963,"journal":{"name":"Int. J. Handheld Comput. Res.","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122115378","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Voice Application Generator Platform for Real Time Multimedia Vehicle Sensor based Notifications 基于实时多媒体车辆传感器通知的语音应用生成平台
Int. J. Handheld Comput. Res. Pub Date : 1900-01-01 DOI: 10.4018/IJHCR.2015010102
Guillermo Cueva-Fernandez, Jordán Pascual Espada, Vicente García Díaz
{"title":"Voice Application Generator Platform for Real Time Multimedia Vehicle Sensor based Notifications","authors":"Guillermo Cueva-Fernandez, Jordán Pascual Espada, Vicente García Díaz","doi":"10.4018/IJHCR.2015010102","DOIUrl":"https://doi.org/10.4018/IJHCR.2015010102","url":null,"abstract":"Nowadays, many software applications are used to offer services or functionalities to drivers. Even though, there is a lack of applications that offer drivers the possibility to express their need to generate a specific application in real time. In this research, the authors present an innovative platform that allows users to generate multimedia web applications that use real time vehicle sensor information. The creation of applications is specified through a voice interface to allow users to generate applications while driving. Information used in the applications is collected combining mobile device sensors accelerometer, GPS, light sensor, barometer, etc. and vehicle real time On-board Diagnosis port information speed, engine revolutions per minute, fuel consumption, coolant temperature, throttle, battery voltage, etc.. The domain of generated applications includes driving safety, road state, parameter notifications, social applications, etc. The generated applications can display visual information systems such as maps, audio, video and measurement gauges. For the analysis of this paper, the authors present three prototypes to demonstrate the platform capabilities.","PeriodicalId":265963,"journal":{"name":"Int. J. Handheld Comput. Res.","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128343435","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Energy Efficiency of Mobile Device Recharging 移动设备充电的能源效率
Int. J. Handheld Comput. Res. Pub Date : 1900-01-01 DOI: 10.4018/jhcr.2013010104
J. Ruutu, J. Nurminen, Kari Rissanen
{"title":"Energy Efficiency of Mobile Device Recharging","authors":"J. Ruutu, J. Nurminen, Kari Rissanen","doi":"10.4018/jhcr.2013010104","DOIUrl":"https://doi.org/10.4018/jhcr.2013010104","url":null,"abstract":"Because of losses in electricity conversion and storage only part of the energy taken from the power grid produces useful work in a battery-operated mobile device; the rest evaporates as heat. The authors analyze the recharging activity of a mobile phone to understand the efficiency of the different units involved (charger, EPM chipset, battery). Their measurements show that the efficiency is quite low; only about 15% of the electricity from the power grid ends up being used for the actual computing and communication elements of the mobile phone. It seems that there is room for improvement in the recharging efficiency. However, as the consumption of electricity of a single phone is small the incentive for improvements has been weak.","PeriodicalId":265963,"journal":{"name":"Int. J. Handheld Comput. Res.","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127057355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Psychometric Assessment of Cardio-Respiratory Activity Using a Mobile Platform 使用移动平台的心肺活动心理测量评估
Int. J. Handheld Comput. Res. Pub Date : 1900-01-01 DOI: 10.4018/ijhcr.2014010102
N. Carbonaro, P. Cipresso, A. Tognetti, G. Anania, D. Rossi, F. Pallavicini, A. Gaggioli, G. Riva
{"title":"Psychometric Assessment of Cardio-Respiratory Activity Using a Mobile Platform","authors":"N. Carbonaro, P. Cipresso, A. Tognetti, G. Anania, D. Rossi, F. Pallavicini, A. Gaggioli, G. Riva","doi":"10.4018/ijhcr.2014010102","DOIUrl":"https://doi.org/10.4018/ijhcr.2014010102","url":null,"abstract":"It is increasingly recognized that stress has negative effects on growing numbers of people. Stress assessment is a complex issue, but different studies have shown that monitoring user psychophysiological parameter during daily life can be greatly helpful in stress evaluation. In this context, the European Collaborative Project INTERSTRESS is aimed at designing and developing advanced simulation and sensing technologies for the assessment and treatment of psychological stress, based on mobile biosensors.In this study a wearable biosensor platform able to collect physiological and behavioral parameters is reported. The developed mobile platform, in terms of hardware and processing algorithms, is described. Moreover the use of this wearable biosensor platform in combination with advanced simulation technologies, such as virtual reality, offer interesting opportunities for innovative personal health-care solutions to stress.","PeriodicalId":265963,"journal":{"name":"Int. J. Handheld Comput. Res.","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125699161","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Nurses' Attitudes Towards E-Learning for E-health Education 护士对电子健康教育中电子学习的态度
Int. J. Handheld Comput. Res. Pub Date : 1900-01-01 DOI: 10.4018/IJHCR.2016010104
Rasmeh Al-Huneiti, Z. Hunaiti, S. Al-masaeed, W. Balachandran, Ebrahim Mansour
{"title":"Nurses' Attitudes Towards E-Learning for E-health Education","authors":"Rasmeh Al-Huneiti, Z. Hunaiti, S. Al-masaeed, W. Balachandran, Ebrahim Mansour","doi":"10.4018/IJHCR.2016010104","DOIUrl":"https://doi.org/10.4018/IJHCR.2016010104","url":null,"abstract":"Many studies and authors' own studies suggest that e-learning system is the solution that will establish an educational framework for e-health implementation. Therefore, it is essential in order to achieve success, to assess and evaluate the attitude of the nursing community-who are the end users-towards the possibility of implementing the 'E-learning system' as a solution to educate the nursing community. In this research, a survey captured 52 nurses' attitudes towards an on line e-learning website and showed that nurses have positive attitude.","PeriodicalId":265963,"journal":{"name":"Int. J. Handheld Comput. Res.","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124716005","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
A Personal Handheld Device to Support People with Life-Threatening Anaphylactic Allergies (PervaLaxis) 支持危及生命的过敏性过敏症患者的个人手持设备(PervaLaxis)
Int. J. Handheld Comput. Res. Pub Date : 1900-01-01 DOI: 10.4018/jhcr.2010090904
L. H. Munoz, Sandra I. Woolley
{"title":"A Personal Handheld Device to Support People with Life-Threatening Anaphylactic Allergies (PervaLaxis)","authors":"L. H. Munoz, Sandra I. Woolley","doi":"10.4018/jhcr.2010090904","DOIUrl":"https://doi.org/10.4018/jhcr.2010090904","url":null,"abstract":"This paper presents PervaLaxis, a personal mobile health device designed to help anaphylactic people manage their life-threatening allergies. PervaLaxis was designed to support allergic patients both in everyday life and in emergency scenarios where an injection of adrenaline may be vital. PervaLaxis is implemented on a Smartphone platform and communicates wirelessly with adrenaline injectors. In emergency scenarios, PervaLaxis can detect an injection of adrenaline and send a message automatically to emergency services; in normal life PervaLaxis can support adrenaline injector training, for example with video demonstrations and can support medication management, for instance, managing adrenaline expiration dates. In this paper we present user requirements and evaluation results for PervaLaxis, furthermore we explore the issues associated with the patient-oriented focus of the device as opposed to health devices designed for expert use and how this could benefit personal health management. We evaluate usability performance and propose directions for future work based on user feedback.","PeriodicalId":265963,"journal":{"name":"Int. J. Handheld Comput. Res.","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121328023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Characterizing Smartphone Usage: Diversity and End User Context 表征智能手机使用:多样性和最终用户环境
Int. J. Handheld Comput. Res. Pub Date : 1900-01-01 DOI: 10.4018/jhcr.2013010102
Tapio Soikkeli, Juuso Karikoski, H. Hämmäinen
{"title":"Characterizing Smartphone Usage: Diversity and End User Context","authors":"Tapio Soikkeli, Juuso Karikoski, H. Hämmäinen","doi":"10.4018/jhcr.2013010102","DOIUrl":"https://doi.org/10.4018/jhcr.2013010102","url":null,"abstract":"Mobile end user context has gained increasing attention in the mobile services industry. This article utilizes handset-based data, collected from 140 users, to examine smartphone usage in different place-related end user contexts. Smartphone usage is examined first on a high level by using smartphone usage session as a unit of analysis. Then the usage sessions are dismantled into application sessions for deeper analysis and application level study. According to the authors’ analysis, smartphone usage is highly diversified across users. For example, the daily smartphone usage time differs by orders of magnitude between users. They observed also that smartphones are used differently in different end user contexts. For example, some applications are clearly more context sensitive than others. The results imply that mobile services and applications need to adapt to user behavior in order to be personalized enough, and that context awareness can indeed be a worthwhile step towards this.","PeriodicalId":265963,"journal":{"name":"Int. J. Handheld Comput. Res.","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116502142","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 20
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