BBEMG - Belgian BioElectroMagnetics Group

Belgian BioElectroMagnetics Group

Electromagnetic modeling: Reports and publications

Electromagnetic modeling: Reports and publications

 2015-2016 activity report

C. Geuzaine, V. Beauvois, P. Dular, M. Graulich

This year has been devoted to the follow up of the development of a free, easy-to-use software application to evaluate ELF fields near common ELF sources. A first prototype for mobile platforms running the Android operating system (phones and tablets) has been developed, which is currently undergoing beta-testing. The database of ELIA cable configurations has been integrated into the models.

2014-2015 activity report

C. Geuzaine, V. Beauvois, P. Dular, M. Graulich

In 2014-2015 the ACE group from the University of Liège has continued the development of a free, easy-to-use software application to evaluate ELF fields near common ELF sources, in particular near powerlines and underground cables.  Based on the open source packages GetDP, Gmsh and ONELAB, the application provides an intuitive graphical interface for interactive parameter modification and result exploration. A first prototype for mobile platforms running the iOS operating system (iPhones and iPads) has been developed, which is currently undergoing beta-testing.

2013-2014 activity report

C. Geuzaine, V. Beauvois, P. Dular, M. Graulich

In 2013-2014 the ACE group from the University of Liège has started the development of a free, easy-to-use software tool to evaluate ELF fields near common ELF sources, in particular near powerlines and underground cables.  Based on the open source finite element codes GetDP and Gmsh, the tool uses the ONELAB framework to provide a graphical front-end for interactive parameter modification and result exploration. A first prototype is functional on Window, MacOS and Linux, and was tested on a parametric two-dimensional power line model.

Past activity reports

2009-2013

2009-2013

C. Geuzaine, JL. Lilien (*), PP. Barbier, V. Beauvois, P. Dular, R. Sabariego

The first part of the 2009-2013 research project focused on completing the study carried out in 2005-2009 on the origin of contact currents in Belgian residential housing. The measurement campaign was completed, with a total of about 150 houses measured. No correlation was found between contact currents and the ambient magnetic field produced by electrical power lines. Instead, the contact currents in Belgian houses were shown to predominantly originate from leakage capacitive currents in domestic wiring. This new finding is at odds with similar studies performed in the USA, but was confirmed theoretically (using computer simulations) and experimentally (via measurements). It was shown that the difference between the Belgian and US situations is probably mainly due to the different earthing systems used in the two countries, the TN-scheme used in the USA being more sensitive to ambient magnetic fields than the TT-scheme used in Belgium.

The second part of the research project focused on understanding the link between the values of external ELF sources and the values of the electromagnetic fields inside the human body. Indeed, these internal fields are the ones to consider as far as biological effects are concerned. Since the main difficulty in assessing this link is the uncertainty on the values of the electromagnetic parameters of the body, a probabilistic solver was developed to characterize the probability density of the induced internal fields in terms of the electromagnetic parameters of the body, in particular the electrical conductivity. Realistic geometrical models of a full human body and of a detailed human head, which can be submitted to arbitrary virtual exposure of external electric and magnetic fields, were set up, and various scenarios (ambient magnetic field, contact voltage, contact current) were tested. The accuracy of the probabilistic results was confirmed using so-called “dual approaches”, which allow providing energy confidence bounds.

(*) from 2009 to 2011

 

Publications

Publications related to BBEMG activities

 Ledent, M., Beauvois, V., Demaret, I., Ansseau, M., Scantamburlo, G. (2015). Champs électriques et magnétiques 50 Hz et santé : quel message au grand public ? Rev Med Liege 2015, 70(4),172-178.
>> See a free pdf version

R. Scorretti, R. V. Sabariego, L. Morel, C. Geuzaine, N. Burais, L Nicolas (2012)
Computation of induced fields into the human body by dual finite element formulations.
IEEE Trans. Mag. 48 (2) pp.  783-786, 2012. 

R. Gaignaire, R. Scorretti, R. V. Sabariego and C. Geuzaine. (2012)
Stochastic uncertainty quantification of eddy currents in the human body by polynomial chaos decomposition.
IEEE Trans. Mag. 48 (2) pp. 451-454, 2012.

Lilien, J.L., Dular, P., Sabariego, R.V., Beauvois, V., Barbier, P.P., & Lorphevre, R. (2009).
Effects of extremely low frequency electromagnétic fields (ELF) on human beings.
In Proceedings of International colloquium - Power Frequency Electromagnetic Fields ELF EMF, June 3-4, 2009, Sarajevo, Bosnia-Herzegovina.

Lilien, J.L., Dular, P., Sabariego, R.V., Beauvois, V., Barbier, P.P., & Lorphevre, R. (2008).
Effects of extremely low frequency electromagnétic fields (ELF) on human beings. An Engineer point of view.
Revue E tijdschrift - 124ste jaargang/124ème année - n°3-2008.

Mattivi, B., Beauvois, V., Dular, P., Lilien, JL., Lorphèvre, R., & Sabariego, R.V. (2006).
Hypersensitivity to Electricity: The effect of the current waveform on the perception level.
4th Int Workshop on biological effects of electromagnetic fields. Crete, Greece, Oct 2006.

Hoeffelman, J., Decat, G., & Lilien, JL. (2004).
Assessment of the Electric and Magnetic field levels in the vicinity of the HV overhead power lines in Belgium.
CIGRE, 2004, CIGRE session papers, Group C3 (8 pages).

Crasson, M., Legros, J.J., Scarpa, P., and Legros, W. (1999).
50 Hz magnetic field exposure-influence on human performance and psychophysiological parameters. Two double-blind experimental studies.
Bioelectromagnetics, 20 (8), p. 474-486.

A summary of standards for human exposure to electric and magnetic fields at power frequencies.
Working Group 36/01 and 06.CIGRE (Joint paper). Electra 1998, August, 179, 51 p.

Other publication fields

For recent publications, see Open Repository and Bibliography (ORBi, ULg).

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Latest update on 23/12/2016

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