نتایج جستجو برای: mobile phone jammers
تعداد نتایج: 231873 فیلتر نتایج به سال:
Introduction: In recent years, the rapidly increasing use of mobile phone operating nearby the human head has caused public concern for its effects on human health. The FDTD methodology is widely used for calculation of the effects of electromagnetic fields on human body. Methods and Materials: In this paper, first a dual band patch antenna structure (GSM-900 and DCS 1800), which is located i...
Because of the need to develop specific measurement scales for different services industries, this study aimed to empirically develop a reliable and valid model specifically for measuring mobile telecommunication service quality. A multidimensional measurement model (MS-Qual) has been proposed based on an extensive literature review and then, to assess the model validity, convergent and discrim...
Recommender systems suggest proper items to customers based on their preferences and needs. Needed time to search is reduced and the quality of customer’s choice is increased using recommender systems. The context information like time, location and user behaviors can enhance the quality of recommendations and customer satisfication in such systems. In this paper a context aware recommender sys...
Drawing from the theoretical orientation of Apparatgeist (Katz and Aakhus, 2002), this study explored cultural similarities and differences in perceptions and uses of mobile telephony. A sample of college students from Japan, Sweden, Taiwan, Hawaii, and the U.S. Mainland were surveyed to assess (1) perceptions of the mobile phone as fashion, (2) attitudes about mobile phone use in public settin...
Pedestrians regularly engage with their mobile phone whilst walking. The current study investigated how mobile phone use affects where people look (visual search behaviour) and how they negotiate a floor based hazard placed along the walking path. Whilst wearing a mobile eye tracker and motion analysis sensors, participants walked up to and negotiated a surface height change whilst writing a te...
Epidemiological Characteristics of Mobile Phone Ownership and Use in Korean Children and Adolescents
OBJECTIVES As public concern on possible harmful effects of mobile phone in children has been raised, information of epidemiological characteristics of mobile phone use in children and adolescents will be essential for public health policy. METHODS Using three databases (n=21,693) collected from 2008 to 2011, we examined characteristics of mobile phone ownership and use, and socioeconomic pos...
Background: Increase in mobile phone users cause extensive consideration of researchers to biological effects of mobile phone waves. As the mobile set, is held near the ear and temporal lobe, and whereas distance of antenna from the inner ear is few centimeters, this study is the first research in our country to assess potential changes in auditory brain stem response of rabbit after exposure...
With cell mobile phone devices becoming a basic part of life, the re-charging of cell mobile phone battery energy has always been a problem. The cell mobile phone devices differ in their talk-time and battery energy take a position by according to their producer and battery energy. All these mobile phones regardless of their producer and battery energy have to be put to renew after battery ener...
Despite its unambiguous advantages, cellular phone use has been associated with harmful or potentially disturbing behaviors. Problematic use of the mobile phone is considered as an inability to regulate one’s use of the mobile phone, which eventually involves negative consequences in daily life (e.g., financial problems). The current article describes what can be considered dysfunctional use of...
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