Numerical calculation of electrostatic field surrounding a human head in visual display environments

Nielsen, Niels Finderup; Michelsen, Jess; Schneider, Thomas

doi:10.1016/0304-3886(95)00045-3

Cited by 16 publications

(12 citation statements)

References 9 publications

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“…Behind the head the electrostatic field is very low and has value of approximately 100 V/cm (10 kV/m). If we compare this result with the result obtained in [3] using FD method, it is noticeable that this method doesn't have problems with grid singularity just above the head, and that the values of electrostatic field are similar, but because of different shapes of the face they cannot be compared properly.…”

Section: Resultsmentioning

confidence: 84%

“…Comparing that value to the one obtained by performing the calculation over the whole domain, it appears to be significantly smaller, approximately 23%. This means that it is not enough to calculate just half of the domain and then mirror the results on the other half, as it was done in [3]. The proper way to calculate electrostatic field generated by VDU's is to take into account the whole domain i.e.…”

Section: Resultsmentioning

confidence: 97%

“…Also, results obtained by this work are compared to the results published in [3] obtained using the finite difference (FD) method. The motivation for studying this problem is lack of information of electrostatic field at the surface of human face.…”

Section: Introductionmentioning

confidence: 91%

“…Over the years of work it has been noticed and proven that X ray radiation, optical radiation, high (lMHz) and low (-kHz) frequency electromagnetic fields are way below technical guidelines [1], [2] hence, considered not harmful for the health. On the other hand, extremely low frequency (ELF) (-Hz) electromagnetic and electrostatic fields might be associated with some skin diseases, suppression of melatonin, or induction of phosphenes in the eyes, despite of the fact that there is no strong evidence of adverse health effects from domestic levels of ELF electromagnetic fields [1], [2], [3].…”

Section: Formulation Of the Problemmentioning

confidence: 99%

See 3 more Smart Citations

Finite element model of the human head exposed to electrostatic field generated by Video Display Units

Cavka

Poljak

Peratta

2006

2006 International Conference on Software in Telecommunications and Computer Networks

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The goal of this paper is to investigate interaction between electrostatic field of Video Display Units (VDU's) and human head in front of it. Special attention is given to the field at the surface of the face. The finite element model for assessment of the electrostatic field, by solving Laplace equation for the electric potential, is implemented. The electrostatic field is calculated for two different faces and for two different types of the domain and then compared with results obtained by the finite difference method. The advantage of the presented numerical method is a high resolution and a higher accuracy.

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Section: Resultsmentioning

confidence: 84%

Section: Resultsmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 91%

Section: Formulation Of the Problemmentioning

confidence: 99%

See 2 more Smart Citations

Finite element model of the human head exposed to electrostatic field generated by Video Display Units

Cavka

Poljak

Peratta

2006

2006 International Conference on Software in Telecommunications and Computer Networks

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“…[1][2][3]. As measurement of induced fields in the body is not possible human exposure assessment is carried out by using appropriate computational models [2][3][4][5]. Theoretical models are being used to simulate various exposure scenarios, and thereby establish safety guidelines and exposure limits for humans [6,7].…”

Section: Introductionmentioning

confidence: 99%

Methods of health risk assessment for human exposure to high frequency electromagnetic fields

Poljak¹,

Cvetković²,

Dodig³

2015

WIT Transactions on the Built Environment

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The paper reviews some topics in human exposure to high frequency (HF) electromagnetic fields based on certain integral equation formulations and related numerical solution procedures. Illustrative computational examples are related to the human eye and the human brain exposed to HF radiation. The obtained numerical results for specific absorption rate (SAR) are compared against exposure limits proposed by ICNIRP (International Commission on Non Ionizing Radiation Protection).

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Particle deposition onto a human head: Influence of electrostatic and wind fields

Nielsen

Schneider

1998

Bioelectromagnetics

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This study investigates electrostatic fields surrounding the human head and particle deposition onto facial skin and eyes caused by the combined effect of electrostatic and wind fields. The electrostatic fields are calculated by a three‐dimensional numerical model calculating the field strength between a field source and a human head. The deposition velocity can be viewed as determined by the sum of two contributions: that of an electrostatic field and that of a wind field. Deposition velocities are calculated by a semiempirical particle deposition model that considers particle transport from the free stream to the human face. The particle deposition model uses the electrostatic field model results as input parameters and is applied to the forehead and eyes of two facial shapes for two different turbulence conditions and aerosol charge distributions. The results of different practical working conditions, under which the potential difference between head (person) and source ranges from 5.6 to 15.0 kV, indicates that the presence of electrostatic fields always increases particle deposition for industrial aerosols. For aged aerosols an effect is only present for submicron particles. Bioelectromagnetics 19:246–258, 1998. © 1998 Wiley‐Liss, Inc.

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Numerical calculation of electrostatic field surrounding a human head in visual display environments

Cited by 16 publications

References 9 publications

Finite element model of the human head exposed to electrostatic field generated by Video Display Units

Finite element model of the human head exposed to electrostatic field generated by Video Display Units

Methods of health risk assessment for human exposure to high frequency electromagnetic fields

Particle deposition onto a human head: Influence of electrostatic and wind fields

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