نتایج جستجو برای: gsm mobile phone

تعداد نتایج: 234214  

2011
Audrey Ceschia

In May, 2011, 30 scientists from 14 countries met at the International Agency for Research on Cancer (IARC) in Lyon, France, to assess the carcinogenicity of radiofrequency electromagnetic fi elds (RF-EMF). These assessments will be published as Volume 102 of the IARC Monographs. Human exposures to RF-EMF (frequency range 30 kHz–300 GHz) can occur from use of personal devices (eg, mobile teleph...

Objective(s): Scientific interest in potential mobile phone impact on human brain and performance has significantly increased in recent years. The present study was designed to evaluate the effects of mobile phone radiation on seizure threshold in mice. Materials and methods:BALB/c male mice were randomly divided into three groups: control, acute, and chronic mobile phone radiation for 30, 60, ...

1999

Through a practical application, this paper studies the capacity of the GSM network, a wireless mobile phone network widely used in Europe and some Asian countries, for transmitting multimedia data. The application is a client-server based automobile security system which monitors the interior and exterior environments of the moving automobile by a computer equipped a digital camera, a voice ca...

A Tavakoli-Golpayegani M B Shojaie-fard M Ghader-Panah M Haghani N Shokrpour O Koohi S A R Mortazavi, S M J Mortazavi, S M Owji S Taeb

Background: The rapidly increasing use of mobile phones has led to public concerns about possible health effects of these popular communication devices. This study is an attempt to investigate the effects of radiofrequency (RF) radiation produced by GSM mobile phones on the insulin release in rats.Methods: Forty two female adult Sprague Dawley rats were randomly divided into 4 groups. Group1 we...

2010
ANDREY BARINOV

Typically, speaker identification examination requires two audio recordings: a voice sample and a questionable recording. The questionable one is in most of the cases the intercepted or recorded phone call. As mobile phones became the most popular way of communication, the largest number of questionable recordings comes from GSM channels. They use special algorithms and devices to transmit the ...

Background and Objectives: Mobile phone dependency has become a global problem due to its high incidence, rapid growth rate, and serious adverse consequences. The aim of this study was to model the structural relationships of mobile phone addiction in male students based on negative excitement and boredom proneness with the mediating role of self-monitoring. Materials and Methods: This study w...

2006
Pekka Ala-Siuru Tapani Rantakokko

In this paper we introduce a hybrid method for personalizing different interface features in a mobile phone. We give a description how to use combined data from GSM base stations and Bluetooth sources to determine user location and change the user profile automatically according to the location context. We give detailed information about our data logging experiments and the learning algorithms ...

2012
Shahram Mohrehkesh Shuiwang Ji Tamer Nadeem Michele C. Weigle

In this paper, we describe how we use the mobile phone usage of users to predict their demographic attributes. Using call log, visited GSM cells information, visited Bluetooth devices, visited Wireless LAN devices, accelerometer data, and so on, we predict the gender, age, marital status, job and number of people in household of users. The accuracy of developed classifiers for these classificat...

2014
Md Faruk Ali Sudhabindu Ray

Specific absorption rate (SAR) induced inside human head in the near-field of a mobile phone antenna has been investigated for three different SAR resolutions using Finite Difference in Time Domain (FDTD) method at GSM 900 band. Voxel based anthropomorphic human head model, consisting of different anatomical tissues, is used to calculate the peak SAR values averaged over 10-g, 1-g and 0.1-g mas...

Journal: :Annals of agricultural and environmental medicine : AAEM 2007
Artur Wdowiak Leszek Wdowiak Henryk Wiktor

The problem of the lack of offspring is a phenomenon concerning approximately 15% of married couples in Poland. Infertility is defined as inability to conceive after a year of sexual intercourses without the use of contraceptives. In half of the cases the causative factor is the male. Males are exposed to the effect of various environmental factors, which may decrease their reproductive capabil...

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