Effect of concurrent ELF electric and magnetic fields on induced current density in biological model in the vicinity of the ground

Matsumoto, Takashi; Chiba, Atsuo; Hayashi, Noriyuki; Isaka, Katsuo

doi:10.1049/cp:19990587

Cited by 5 publications

(6 citation statements)

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“…To avoid any form of electromagnetic compatibility [9] [10] [11]. Several epidemiological and experimental studies have been carried out on this subject and most of them have led to the establishment of biological effects that may signify a potential risk of long-term dangers from electromagnetic waves for the health of a living being [12].…”

Section: Introductionmentioning

confidence: 99%

“…The effects of electromagnetic fields on a biological cell being the objective of this article, it seems essential to us to describe the biological cell and the molecular structure of the plasma membrane to underline the difficulties linked to their electrical characterization [13]. This is how we took into account the analyses of some of the authors cited below to help us direct our work in the most appropriate way [1] [9] [12] [14] [15].…”

Section: Introductionmentioning

confidence: 99%

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Analysis and FDTD Modeling of the Influences of Microwave Electromagnetic Waves on Human Biological Systems

Nzao¹

2022

OJAppS

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The interactions of electromagnetic waves with the human body are complex and depend on several factors related to the characteristics of the incident wave, including its frequency, its intensity, the polarization of the tissue encountered, the geometry of the tissue and its electromagnetic properties. That's to say, the dielectric permittivity, the conductivity and the type of coupling between the field and the exposed body. A biological system irradiated by an electromagnetic wave is traversed by induced currents of non-negligible density; the water molecules present in the biological tissues exposed to the electromagnetic field will begin to oscillate at the frequency of the incident wave, thus creating internal friction responsible for the heating of the irradiated tissues. This heating will be all the more important as the tissues are rich in water. This article presents the establishment from a mathematical and numerical analysis explaining the phenomena of interaction and consequences between electromagnetic waves and health. Since the total electric field in the biological system is unknown, that is why it can be determined by the Finite Difference Time Domain FDTD method to assess the electromagnetic power distribution in the biological system under study. For this purpose, the detailed on the mechanisms of interaction of microwave electromagnetic waves with the human body have been presented. Mathematical analysis using Maxwell's equations as well as bio-heat equations is the basis of this study for a consistent result. Therefore, a thermal model of biological tissues based on an electrical analogy has been developed. By the principle of duality, an electrical model in the dielectric form of a multilayered human tissue was used in order to obtain a corresponding thermal model. This thermal model made it possible to evaluate the temperature profile of biological tissues during exposure to electromagnetic waves. The simulation results obtained from computer tools show that the temperature in the bio-How to cite this paper: Nzao, A.B.S.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Analysis and FDTD Modeling of the Influences of Microwave Electromagnetic Waves on Human Biological Systems

Nzao¹

2022

OJAppS

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“…Several epidemiological and experimental studies have been conducted on this and they led most to establish biological effects that may mean risk or long-term health of a living being [12]. Theoretical studies have also made it possible to estimate doses of electromagnetic energy absorbed by animals and humans.…”

Section: Introductionmentioning

confidence: 99%

“…The effects of electromagnetic fields on a biological cell being the objective of this article, it seems essential to us to describe the biological cell and the molecular structure of the plasma membrane to underline the difficulties related to their electrical characterization [13]. This is how we have taken into account the analyses of some of the authors cited below to help us orient our work [1] [9] [12] [14] [15].…”

Section: Introductionmentioning

confidence: 99%

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Study and Modeling of Human Biological Tissue Exposed to High Frequency Electromagnetic Waves

Nzao¹

2021

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The main objective of this proposed article is to provide explanations to justify the validity of the results of the studies of the interaction between the electromagnetic fields and the human body. It can also find direct applications in the characterization and modeling of the macroscopic electrical properties of the biological media for assessing the effects of fields induced by electromagnetic radiation sources in the human body to set up new standards on the Human exposure to electromagnetic fields. To do this, we have taken into account the different physical phenomena of propagation of a hyper-frequency electromagnetic plane wave and on the other hand, the experimental values in order to model the electrical behavior of human biological tissues based on an equivalent electronic circuit model composed of capacities, resistance and reel, which assimilates the biological tissues of the skin, grease, blood. This model using the characteristic impedance of the dielectric support makes it possible to evaluate the voltage induced by the electromagnetic waves of the hyper-frequencies in the studied biological system. The results of the simulations obtained from computer tools demonstrate that the hyper-frequency electromagnetic waves can result in an elevation of the electrical potential of the biological tissues. Despite this potential is a decreasing function of the penetration depth.

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Analysis of induced current density in ellipsoidal human model exposed to concurrent ELF electric and magnetic fields with phase differences

Matsumoto¹,

Hayashi²,

Isaka³

IEEE/PES Transmission and Distribution Conference and Exhibition

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Effect of concurrent ELF electric and magnetic fields on induced current density in biological model in the vicinity of the ground

Cited by 5 publications

References 0 publications

Analysis and FDTD Modeling of the Influences of Microwave Electromagnetic Waves on Human Biological Systems

Analysis and FDTD Modeling of the Influences of Microwave Electromagnetic Waves on Human Biological Systems

Study and Modeling of Human Biological Tissue Exposed to High Frequency Electromagnetic Waves

Analysis of induced current density in ellipsoidal human model exposed to concurrent ELF electric and magnetic fields with phase differences

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