D
Dragan Poljak
Researcher at University of Split
Publications - 371
Citations - 2717
Dragan Poljak is an academic researcher from University of Split. The author has contributed to research in topics: Boundary element method & Integral equation. The author has an hindex of 25, co-authored 346 publications receiving 2431 citations.
Papers
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Proceedings ArticleDOI
Some computational aspects of using current and voltage sources in electromagnetic models of lightning return strokes
TL;DR: In this article, the authors deal with some computational aspects of modeling the lightning return strokes using the full wave model using the Galerkin-Bubnov Indirect Boundary Element Method (GB-IBEM).
Journal ArticleDOI
An Efficient Deterministic-Stochastic Model of the Human Body Exposed to ELF Electric Field
Anna Susnjara,Dragan Poljak +1 more
Abstract: The paper deals with the deterministic-stochastic model of the human body represented as cylindrical antenna illuminated by a low frequency electric field. Both analytical and numerical (Galerkin-Bubnov scheme of Boundary Element Method) deterministic solutions of the problem are outlined. This contribution introduces the new perspective of the problem: the variability inherent to input parameters, such as the height of the body, the shape of the body, and the conductivity of body tissue, is propagated to the output of interest (induced axial current). The stochastic approach is based on the stochastic collocation (SC) method. Computational examples show the mean trend of both analytically and numerically computed axial current with the confidence margins for different set of input random variables. The results point out the possibility of improving the efficiency in calculation of basic restriction parameter values in electromagnetic dosimetry.
Journal ArticleDOI
Numerical comparison of compound and extracted eye models for high frequency dosimetry
TL;DR: In this paper, the authors compared the numerical results for the induced electric field, the specific absorption rate (SAR), and the corresponding temperature increase in two detailed models of the human eye.
Journal ArticleDOI
Sensitivity analysis of the direct time domain analytical solution for transient impedance of the horizontal grounding electrode using ANOVA approach
Silvestar Sesnic,Sebastien Lallechere,Dragan Poljak,Anna Susnjara,Khalil El Khamlichi Drissi +4 more
TL;DR: In this article, the sensitivity analysis of the transient impedance of the horizontal grounding electrode is performed to determine the influence of each variable as well as the combination of variables on the transverse impedance.
Proceedings Article
Electric Field Probe Measurement Error Due to Sine Signal Calibration
TL;DR: A wideband electric field probe consisting of a diode detector connected to a low-pass filter is analyzed and it is shown that the probe responds differently for large and small signals.