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Non-ionizing electromagnetic radiation effects on the action potential in human arm electrical model

Othman, Adib (2015) Non-ionizing electromagnetic radiation effects on the action potential in human arm electrical model. Masters thesis, Universiti Tun Hussein Onn Malaysia.


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The common use of Global System for Mobile Communications (GSM) phones has initiated research regarding the possible biological hazardous effects of exposure to electromagnetic (EM) radiation. Therefore, it is essential to study the extent of interaction of GSM phone radiation towards action potentials (AP) in nerve fibres. In order to investigate the effects of GSM phone radiation towards human arm AP, human brain-arm nerve fibres were modeled as wire-type transmission lines; two wires and one wire. Both models with and without interference source from the radiation were simulated and the output waveforms have been analysed to detect any existence of interference. The interference source value was obtained by finding electric and magnetic fields in nerve layer of simulated human arm model that been exposed by GSM phone radiation. Robotic arm experiment setup was developed to measure effects of the radiation towards the electrical signal of robotic arm as indirect comparison to AP. Simulation results show the radiation is capable of disturbing the normal AP by introducing bursting spikes on it when distance of the phone from the human arm model is 9 mm with phone radiation power as low as 0.02 W. Furthermore, large nerve fibre radius with huge exposure area to the EM waves also adds on to the effect of radiation on the AP. The altered AP might disturb the normal functions of human arm and hence lead to potential health hazard. The robotic arm has shown displacement from 0.2 cm to 1 cm from the original location when placing an object to its required place when there are active GSM phones near the robotic setup. The measured electrical signal of the robotic arm shows brief distortion in its signal with distortion magnitude up to 0.58 V. This distortion observation is quite similar to the AP when there is induced source in the nerve fibre models. In conclusion, there are significance effects of EM radiation towards the AP in human nervous system.

Item Type: Thesis (Masters)
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101-5865 Telecommunication. Telegraph.
Depositing User: Mrs Hasliza Hamdan
Date Deposited: 11 Apr 2016 09:12
Last Modified: 11 Apr 2016 09:12
URI: http://eprints.uthm.edu.my/id/eprint/7885
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