نتایج جستجو برای: 12 hz electromagnetic

تعداد نتایج: 688376  

Introduction: This study investigated the effects of extremely low frequency electromagnetic fields (ELF-EMF) (50 Hz, 3 mT) on biochemical parameters of rats’ ovarian tissues and the impact of Allium cepa on the reduction of potential adverse influences of electromagnetic exposure. Material and Methods: In this study 40 female Wistar rats were divided into four groups, including (1) control gr...

Journal: :iranian journal of medical physics 0
seyed ali saiedi zadeh ms.c. in occupational hygiene , tehran university of medical sciences, tehran, iran parvin nassiri professor, occupational health dept., tehran university of medical sciences, tehran, iran hojjat zeraati assistant professor, epidemiology and biostatistics dept.,tehran university of medical sciences, tehran, iran rahmatollah jahangiri assistant professor, school of medicine, army university of medical sciences, tehran, iran

introduction: it has been reported that cardiovascular effects are among the possible health effects of being exposed to extremely low frequency electromagnetic fields (elf emss). material and methods: this study has been conducted to evaluate the long term effects of exposure to magnetic and electric fields on electrocardiogram signal changes. nine power transmission posts having different vol...

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...

2014
I Shahosseini

This paper reports the design, optimization, and test results of a mechanical amplifier coupled to an electromagnetic energy harvester to generate power from lowamplitude (±1 mm) and low-frequency (<5 Hz) vibrations in the presence of large static displacements. When coupled to a translational kinetic energy harvester, the amplifier boosts small vibration amplitudes by as much as 4x while accom...

2014
Cosmin Teodor Mihai Pincu Rotinberg Florin Brinza Gabriela Vochita

BACKGROUND Extremely low frequency electromagnetic fields aren't considered as a real carcinogenic agent despite the fact that some studies have showed impairment of the DNA integrity in different cells lines. The aim of this study was evaluation of the late effects of a 100 Hz and 5.6 mT electromagnetic field, applied continuously or discontinuously, on the DNA integrity of Vero cells assessed...

Journal: :Bioelectromagnetics 1998
L Zecca C Mantegazza V Margonato P Cerretelli M Caniatti F Piva D Dondi N Hagino

Groups of adult male Sprague Dawley rats (64 rats each) were exposed for 8 months to electromagnetic fields (EMF) of two different field strength combinations: 5microT - 1kV/m and 100microT - 5kV/m. A third group was sham exposed. Field exposure was 8 hrs/day for 5 days/week. Blood samples were collected for hematology determinations before the onset of exposure and at 12 week intervals. At sac...

2013
Cosmin Teodor Miha Gabriela Vochita Florin Brinza Pincu Rotinberg

Extremely low frequency electromagnetic fields aren’t considered as a real carcinogenic agent despite the fact that some studies have showed impairment of the DNA integrity in different cells lines. The aim of this study was evaluation of the late effects of a 100 Hz and 5.6 mT electromagnetic field, applied continuously or discontinuously, on the DNA integrity of Vero cells assessed by alkalin...

Hojjat Zeraati Parvin Nassiri, Rahmatollah Jahangiri Seyed Ali Saiedi Zadeh

Introduction: It has been reported that cardiovascular effects are among the possible health effects of being exposed to extremely low frequency electromagnetic fields (ELF EMSs). Material and Methods: This study has been conducted to evaluate the long term effects of exposure to magnetic and electric fields on electrocardiogram signal changes. Nine power transmission posts having different vol...

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