Effects of frequency, permittivity, and voxel size on predicted specific absorption rate values in biological tissue during electromagnetic-field exposure

2000 ◽  
Vol 48 (11) ◽  
pp. 2050-2058 ◽  
Author(s):  
J.M. Ziriax ◽  
K.I. Smith ◽  
D.A. Nelson ◽  
K.L. Ryan ◽  
P. Gajsek ◽  
...  
Keyword(s):  
Electromagnetic Field ◽  
Biological Tissue ◽  
Absorption Rate ◽  
Specific Absorption Rate ◽  
Field Exposure ◽  
Voxel Size ◽  
Specific Absorption

Short-wave electromagnetic field effects on adrenal glands functional status in the rats

10.12737/7594 ◽  
2015 ◽  
Vol 9 (1) ◽  
pp. 0-0
Author(s):  
Алабовский ◽  
V. Alabovskiy ◽  
Кудряшов ◽  
Yu. Kudryashov ◽  
Перов ◽  
...  
Keyword(s):  
Electromagnetic Field ◽  
Functional Activity ◽  
Absorption Rate ◽  
Specific Absorption Rate ◽  
Adrenal Glands ◽  
Biological Effects ◽  
Male Rats ◽  
Field Exposure ◽  
Specific Absorption ◽  
Tem Cell

The article presents the investigation results of the electromagnetic field biological effects on adrenal glands functional activity in the rats. The electromagnetic field exposure levels were typical electromagnetic fields of portable radios (walkie-talkies). Experiments were carried out on laboratory male rats. Experimental groups were exposured in a transverse electromagnetic wave cell - TEM cell. Sham animal groups were in similar conditions, but without electromagnetic field exposure. The exposure of experimental animals was carried out in three series (12 rats for each group) for three levels of the electric field strength such as 15; 25 and 35 V/m. Gluco-corticoid and mineral-corticoids adrenal functions were assessed by determining the corticosterone and of Na+ and K+ levels in daily urinary excretion. The animal specific absorption rate evaluations were calculated by using the program SEMCAD X v.14 and experimentally in the TEM cell. The dependences of the excretion of corticosterone and electrolytes on the specific absorption rate and exposure time, which indicate that for small values of electromagnetic energy absorption is stimulation of the adrenal glands functional activity, alternating with depression by specific absorption rate increasing.

scholarly journals A Study of specific absorption rate in human head due to electromagnetic exposure to 4G signals

2019 ◽  
Vol 13 (3) ◽  
pp. 1161
Author(s):  
Siti Rokiah Abdul Mutalik ◽  
Mohd Hafizuddin Mat ◽  
Muzammil Jusoh ◽  
A. W. N. Husna
Keyword(s):  
Electromagnetic Field ◽  
Numerical Analysis ◽  
Absorption Rate ◽  
Specific Absorption Rate ◽  
Human Head ◽  
Dipole Antenna ◽  
Specific Absorption ◽  
Phantom Model

<span>This paper presents a numerical analysis of the specific absorption rate in SAM phantom exposed to electromagnetic field. A two set dipole antenna operating with 1800MHz and 2600MHz were placed parallel to the z-axis and rotated in clockwise from 0<sup>o</sup> (vertical) to 180<sup>o</sup> in steps of 30<sup>o</sup> to investigate the effect of frequency and polarization. The maximum average of 1gram and 10gram of tissue have been presented to show the effect of SAR in SAM phantom model. A comparison of the mass average SAR in head shows the 1g of SAR at 2600MHz is double to 1800MHz frequency. While for 10g of SAR, slightly different for both 1800MHz and 2600MHz.</span>

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