نتایج جستجو برای: mobile phone base stations

تعداد نتایج: 507958  

2009
Hiroyuki Tsuji Yoshiyuki Fujino Naokazu Hamamoto Ryutaro Suzuki

The National Institute of Information and Communications Technology (NICT) has been studying a new mobile communication system, named Satellite-Terrestrial Integrated Mobile Communication Systems (STICS)[1]. The STICS is a mobile phone system in which terrestrial mobile and satellite communication systems coexist, and is seamlessly integrated in the same frequency band. We aim for the realizati...

Journal: :Journal of International Society of Preventive and Community Dentistry 2016

Journal: :CoRR 2017
Mohammad Asif Habibi Milos Ulman Bahawodin Baha Michal Stoces

Network coverage is one of the fundamental requirements of any business of a service provider. Mobile operators are expected to deploy base stations in an effective way in order to cover most of the residential areas of a particular country. Improved network coverage leads to increase total revenue, provide end users with enhanced Quality of Services (QoS) anytime anywhere, and play vital role ...

2017
Raika Durusoy Hür Hassoy Ahmet Özkurt Ali Osman Karababa

BACKGROUND Health outcomes of electromagnetic fields (EMF) from mobile phones and their base stations are of concern. Conducting multidisciplinary research, targeting children and exploring dose-response are recommended. Our objectives were to describe the mobile phone usage characteristics of high school students and to explore the association between mobile phone usage characteristics, high s...

AR Mehdizadeh, M Haghani M Jalalipour MB Shojaei-fard N Alighanbari S Borzou S Jarideh, S Nematollahi S Taeb S Zarei SAR Mortazavi SMJ Mortazavi,

Background: Nowadays, mothers are continuously exposed to different sources of electromagnetic fields before and even during pregnancy.  It has recently been shown that exposure to mobile phone radiation during pregnancy may lead to adverse effects on the brain development in offspring and cause hyperactivity. Researchers have shown that behavioral problems in laboratory animals which have a s...

Objective(s): The increasing rate of over using cell phones has been considerable in youths and pregnant women. We examined the effect of mobile phones radiation on genes expression variation on cerebellum of BALB/c mice before and after of the birth. Materials and Methods: In this study, amobile phone jammer, which is an instrument to prevent receiving signals between cellular phonesand base t...

2015
Katharina Roser Anna Schoeni Alfred Bürgi Martin Röösli Paul B. Tchounwou

Exposure assessment is a crucial part in studying potential effects of RF-EMF. Using data from the HERMES study on adolescents, we developed an integrative exposure surrogate combining near-field and far-field RF-EMF exposure in a single brain and whole-body exposure measure. Contributions from far-field sources were modelled by propagation modelling and multivariable regression modelling using...

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