نتایج جستجو برای: gsm mobile phone
تعداد نتایج: 234214 فیلتر نتایج به سال:
This paper describes, to monitor the signals of ECG, body temperature, heart rate are measured and given to ARM controller. Through GSM/GPRS modem updated parameters are sending directly to the doctor’s mobile phone/nearby hospital web portal doctor can also query about the human health through GSM by SMS. In addition to that if elderly people need to operate any electrical devices, can help th...
The impact of patents and patent royalties are a major concern of standards setting organisations. Here we examine the patents filed in the UMTS 3rd generation mobile phone standard, governed by the ETSI IPR policy in response to patent issues faced during the earlier GSM standardization. We contrast firm strategies and policy effectiveness between the GSM and UTMS efforts, and review the poten...
This paper describes a smart bushfire monitoring system that can provide an early warning message in case of a bushfire. The system utilises short message service through global system for mobile (GSM) communication technology as a medium of communication. The device is composed of a temperature and humidity sensors that are connected to a microcontroller. The microcontroller also interfaces wi...
Individuals who report sensitivity to electromagnetic fields often report cognitive impairments that they believe are due to exposure to mobile phone technology. Previous research in this area has revealed mixed results, however, with the majority of research only testing control individuals. Two studies using control and self-reported sensitive participants found inconsistent effects of mobile...
The deployment of a miniature mobile-phone base station or small cell in a train car significantly improves the coverage and the capacity of a mobile network service on the train. However, the impact of the small cell on the passengers' exposure to radio-frequency electromagnetic fields (RF-EMF) is unknown. In this study, we assessed experimentally the RF-EMF exposure of a mobile-phone user who...
Introduction: Radiation from cell phones has been associated with an increased risk of cancer. The literature has reported evidence of certain biological effects resulting from exposure to various wavelengths, doses, and intensities of radiofrequency radiation. The present study aimed to evaluate the possible adverse effects of radiation from a GSM mobile phone operating at 900 MHz on human mel...
Background, Despite numerous studies over a decade, it still remains controversial about the biological effects of RF EMF emitted by mobile phone telephony. Objective, Here we investigated the effect of 900 MHz GSM on the induction of oxidative stress and the level of intracellular reactive oxygen species (ROS) in human mononuclear cells, monocytes and lymphocytes as defence system cells. Metho...
Background: We have earlier shown that exposure of human endothelial cell line EA.hy926 to 900 MHz GSM mobile phone radiation causes changes in the expression of numerous proteins. Here, we have examined the effects of 1800 MHz GSM mobile phone signal on the proteome of the same cell line. Results: EA.hy926 cells were exposed for one hour to 1800 MHz GSM signal, simulating mobile phone talking ...
PURPOSE To examine the bioactivity of GSM 900 and 1800 (Global System for Mobile Telecommunications) radiations, in relation to the distance from the antenna or to the radiation-field intensities. MATERIALS AND METHODS Drosophila melanogaster adult insects were exposed to the radiation of a GSM 900/1800 mobile phone antenna at different distances ranging from 0 to 100 cm, and the effect on th...
Nepal Telecommunication (NTC) and Ncell are the two main telecom players in at moment. has been primarily focused on offering Global System for Mobile (GSM) mobile lines, while NTC offers all types of phone services. Although remains countrys leading provider total subscribers, recently overtook as GSM lines. This study aims to assess customer satisfaction highly competitive Nepalese industries...
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