MOBILE PHONES ELECTROMAGNETIC FIELD RADIATION RESEARCH AND ANALYSIS OF ITS DISPERSION BY APPLYING MATLAB7 SOFTWARE

2017 ◽  
Vol 16 (5) ◽  
pp. 1177-1184
Author(s):  
Raimondas Buckus ◽  
Pranas Baltrenas ◽  
Jonas Skeivalas ◽  
Raimondas Grubliauskas ◽  
Igor Cretescu
Keyword(s):  
Electromagnetic Field ◽  
Mobile Phones ◽  
Field Radiation ◽  
Radiation Research

scholarly journals The assessment of electromagnetic field radiation exposure for mobile phone users

2014 ◽  
Vol 71 (12) ◽  
pp. 1138-1143 ◽  
Author(s):  
Raimondas Buckus ◽  
Birute Strukcinskiene ◽  
Juozas Raistenskis
Keyword(s):  
Electromagnetic Field ◽  
Field Strength ◽  
Electric Field ◽  
Mobile Phone ◽  
Radiation Exposure ◽  
Electric Field Strength ◽  
Rural Area ◽  
Mobile Phones ◽  
Field Radiation ◽  
Made In

Background/Aim. During recent years, the widespread use of mobile phones has resulted in increased human exposure to electromagnetic field radiation and to health risks. Increased usage of mobile phones at the close proximity raises questions and doubts in safety of mobile phone users. The aim of the study was to assess an electromagnetic field radiation exposure for mobile phone users by measuring electromagnetic field strength in different settings at the distance of 1 to 30 cm from the mobile user. Methods. In this paper, the measurements of electric field strength exposure were conducted on different brand of mobile phones by the call-related factors: urban/rural area, indoor/outdoor setting and moving/stationary mode during calls. The different types of mobile phone were placed facing the field probe at 1 cm, 10 cm, 20 cm and 30 cm distance. Results. The highest electric field strength was recorded for calls made in rural area (indoors) while the lowest electric field strength was recorded for calls made in urban area (outdoors). Calls made from a phone in a moving car gave a similar result like for indoor calls; however, calls made from a phone in a moving car exposed electric field strength two times more than that of calls in a standing (motionless) position. Conclusion. Electromagnetic field radiation depends on mobile phone power class and factors, like urban or rural area, outdoor or indoor, moving or motionless position, and the distance of the mobile phone from the phone user. It is recommended to keep a mobile phone in the safe distance of 10, 20 or 30 cm from the body (especially head) during the calls.

scholarly journals Application of postured human model for SAR measurements

2013 ◽  
Vol 11 ◽  
pp. 347-352
Author(s):  
M. Vuchkovikj ◽  
I. Munteanu ◽  
T. Weiland
Keyword(s):  
Electromagnetic Field ◽  
Mobile Phones ◽  
Biological Tissues ◽  
Human Model ◽  
Homogeneous Material ◽  
Software Application ◽  
Research Activities ◽  
Human Models ◽  
Digital Human Models ◽  
Digital Human

Abstract. In the last two decades, the increasing number of electronic devices used in day-to-day life led to a growing interest in the study of the electromagnetic field interaction with biological tissues. The design of medical devices and wireless communication devices such as mobile phones benefits a lot from the bio-electromagnetic simulations in which digital human models are used. The digital human models currently available have an upright position which limits the research activities in realistic scenarios, where postured human bodies must be considered. For this reason, a software application called "BodyFlex for CST STUDIO SUITE" was developed. In its current version, this application can deform the voxel-based human model named HUGO (Dipp GmbH, 2010) to allow the generation of common postures that people use in normal life, ensuring the continuity of tissues and conserving the mass to an acceptable level. This paper describes the enhancement of the "BodyFlex" application, which is related to the movements of the forearm and the wrist of a digital human model. One of the electromagnetic applications in which the forearm and the wrist movement of a voxel based human model has a significant meaning is the measurement of the specific absorption rate (SAR) when a model is exposed to a radio frequency electromagnetic field produced by a mobile phone. Current SAR measurements of the exposure from mobile phones are performed with the SAM (Specific Anthropomorphic Mannequin) phantom which is filled with a dispersive but homogeneous material. We are interested what happens with the SAR values if a realistic inhomogeneous human model is used. To this aim, two human models, a homogeneous and an inhomogeneous one, in two simulation scenarios are used, in order to examine and observe the differences in the results for the SAR values.

A REVIEW OF PROTOCOLS AND GUIDELINES ADDRESSING THE EXPOSURE OF OCCUPANTS TO ELECTROMAGNETIC FIELD RADIATION (EMFR) IN BUILDINGS

2021 ◽  
Vol 16 (2) ◽  
pp. 55-81
Author(s):  
Shabnam Monadizadeh ◽  
Charles J. Kibert ◽  
Jiaxuan Li ◽  
Junghoon Woo ◽  
Ashish Asutosh ◽  
...  
Keyword(s):  
Electromagnetic Field ◽  
Human Health ◽  
Health Effects ◽  
Action Plan ◽  
Low Frequency ◽  
Cellular Level ◽  
Future Research ◽  
Ir Radiation ◽  
Health Authorities ◽  
Field Radiation

HIGHLIGHTS ABSTRACT A significant share of the technology that has emerged over the past several decades produces electromagnetic field (EMFR) radiation. Communications devices, household appliances, industrial equipment, and medical equipment and devices all produce EMFR with a variety of frequencies, strengths, and ranges. Some EMFR, such as Extremely Low Frequency (ELF), Radio Frequency (RF), and Ionizing Range (IR) radiation have been shown to have harmful effects on human health. Depending on the frequency and strength of the radiation, EMFR can have health effects at the cellular level as well as at brain, nervous, and cardiovascular levels. Health authorities have enacted regulations locally and globally to set critical values to limit the adverse effects of EMFR. By introducing a more comprehensive field of EMFR study and practice, architects and designers can design for a safer electromagnetic (EM) indoor environment, and, as building and construction specialists, will be able to monitor and reduce EM radiation. This paper identifies the nature of EMFR in the built environment, the various EMFR sources, and its human health effects. It addresses European and US regulations for EMFR in buildings and provides a preliminary action plan. The challenges of developing measurement protocols for the various EMFR frequency ranges and determining the effects of EMFR on building occupants are discussed. This paper argues that a mature method for measuring EMFR in building environments and linking these measurements to human health impacts will foster occupant health and lead to the adequate development of safeguards for occupants of buildings in future research.

Radio-frequency electromagnetic field from mobile phones

The Lancet ◽  
1998 ◽  
Vol 352 (9127) ◽  
pp. 576-577 ◽  
Author(s):  
S Braune ◽  
C Wrocklage ◽  
J Raczek ◽  
T Gailus ◽  
CH Lücking
Keyword(s):  
Electromagnetic Field ◽  
Radio Frequency ◽  
Mobile Phones
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