نتایج جستجو برای: gsm mobile phone base stations

تعداد نتایج: 510422  

Journal: :journal of biomedical physics and engineering 0
a rafati s rahimi a talebi a soleimani m haghani s m j mortazavi

introduction : the fast-growing telecommunication and wireless technologies has led to more dependence to these communication devices and higher levels of exposure to electromagnetic radiations propagated by cellular devices and their service towers. to disable signaling in places where silence is valued or where information quarantine measures are required, mobile phone jammers emit radiofrequ...

Journal: :journal of biomedical physics and engineering 0
m eghlidospour smj mortazavi f yousefi sar mortazavi

mobile phone use and wireless communication technology have grown explosively over the past decades. this rapid growth has caused widespread global concern about the potential detrimental effects of this technology on human health. stem cells generate specialized cell types of the tissue in which they reside through normal differentiation pathways. considering the undeniable importance of stem ...

2012
Iosif Androulidakis Dionisios Pylarinos Gorazd Kandus

One of the fundamental mobile phone security problems in GSM is the absence of base station authentication, which allows man-in-the-middle attacks. During such attacks, a third party activates a fake base station, which acts as a bypass to the network, thus switching off the encryption and intercepting the user’s communications. 3G mobile networks enforce mutual authentication but this can be c...

Journal: :journal of biomedical physics and engineering 0
smj mortazavi s rahimi a talebi a soleimani a rafati

introduction : the  rapid development  of wireless telecommunication technologies  over the past decades, has led to significant changes in the exposure of the general public to electromagnetic fi elds. nowadays, people are continuously exposed to different sources of electromagnetic fi elds such as mobile phones, mobile base stations, cordless phones, wi-fi routers, and power lines. therefore,...

2012
P.Vamsi Krishna

Travel time information is a vital component of many intelligent transportation systems (ITS) applications. In recent years, the number of passengers travels in train & number of trains in India has increased tremendously. Due to the increase in number of trains the train times may be delayed and the passengers have to wait at railway stations. A desirable strategy to deal with such issues is t...

2011
H. ABDUL SHABEER R. S. D. WAHIDABANU

144 Abstract— Every year, innumerable road accidents and deaths take place due to distracted driving. Large number of studies shows mobile phone usage while driving was the major reason for distracted driving. With the aim of preventing road accidents due to mobile phone usage while driving, we propose a highly efficient automatic electronic system for early detection of incoming or outgoing ca...

Journal: :Neurotoxicology 2007
G Abdel-Rassoul O Abou El-Fateh M Abou Salem A Michael F Farahat M El-Batanouny E Salem

BACKGROUND There is a general concern on the possible hazardous health effects of exposure to radiofrequency electromagnetic radiations (RFR) emitted from mobile phone base station antennas on the human nervous system. AIM To identify the possible neurobehavioral deficits among inhabitants living nearby mobile phone base stations. METHODS A cross-sectional study was conducted on (85) inhabi...

Background: Previous studies have shown that exposure to electromagnetic fields produced by magnetic resonance imaging or mobile phones can lead to increased microleakage of dental amalgam.Objective: The aim of the present study was to investigate the effect of electromagnetic field of a commercial dental light cure device and a common GSM mobile phone on microleakage of amalgam restorations.Ma...

2017
Gökhan ÇELİK Hasari ÇELEBİ Hakan Paşa PARTAL Engin ZEYDAN İlyas Alper KARATEPE Ahmet Salih ER

Localization of mobile users in indoor environments has many practical applications in daily life. In this paper, we study the performance of the received signal strength (RSS)-based radio frequency (RF) fingerprinting localization method in a shopping mall environment considering both calibration and practical measurement cases. In the calibration case, the test data for the RSS fingerprinting...

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