Results 1 to 10 of about 91,586 (302)
IEEE Access, 2022 This article presented the characteristics of the grounding electrodes in uniform and two layer soils when subjected to lightning including the impacts of soil ionization with frequency, soil resistivity, and permittivity variations.
Osama E. Gouda +4 more
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GPR of Multiple Vertical Rods under Lightning Strokes Considering Ionization, Dispersion, and Non-Homogeneity of Lossy Soils [PDF]
AUT Journal of Electrical Engineering, 2023 In this paper, the effects of ionization and dispersion of a lossy soil on the Grounding Potential Rise (GPR) of buried multiple vertical rods under lightning return strokes are simultaneously studied. In all studies, an efficient modeling method, called
Saeed Reza Ostadzadeh +2 more
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IEEE Access, 2023 A lightning strike is considered one of the most risky natural phenomena that can lead to human harmful and the surrounding soil layers. To tackle this issue, this article investigates the influence of direct lightning characteristics in terms of human ...
Osama E. Gouda +4 more
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Investigations on the Performance of Various Horizontal Ground Electrodes
Energies, 2021 Experimental work on grounding systems has shown that the characteristics of grounding systems under high impulse conditions are different than those obtained at steady-state conditions.
Hanis Hamizah Hizamul-Din +4 more
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Overview of Transient Simulations of Grounding Systems under Surge Conditions
Energies, 2022 The present paper gives an overview of modelling methods of standard grounding systems under surge conditions, using the non-uniform transmission line approach.
Tomasz Kisielewicz, Milton Cuenca
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Comprehensive Modeling of Transient Analysis of Grounding System under Lightning Surges [PDF]
مجله مدل سازی در مهندسی, 2019 During lightning discharge, the transient performance of grounding system is influenced by the time-dependent nonlinear behavior related to soil ionization and frequency dependence of soil electrical parameters related to high-frequency spectrum of ...
Jalil Ghayur safar, Reza Shariatinasab
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Microbiology Spectrum, 2021 Mass spectrometry imaging (MSI) is becoming an increasingly popular analytical technique to investigate microbial systems. However, differences in the ionization efficiencies of distinct MSI methods lead to biases in terms of what types and classes of ...
Jessica K. Lukowski +6 more
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Investigation of soil ionization propagation in two-layer soil samples [PDF]
2015 50th International Universities Power Engineering Conference (UPEC), 2015 High current lightning strikes into earthing systems \ud can result in ionization in the soil surrounding the earthing electrode. Most of the published studies investigating this phenomenon have assumed uniform one-layer soil, but soil ionization propagation in a multilayered soil sample has not \ud been extensively addressed.
Elzowawi, Alseddig +3 more
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IET Generation, Transmission & Distribution, 2022 The impulse performance of grounding electrodes highly depends on soil impulse discharge characteristics. The analysis of soil discharge dynamic process images is helpful to understand the impulse discharge mechanism of grounding electrodes.
Yuanjie Li +7 more
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Distribution of uranium, thorium, and isotopic composition of uranium in soil samples of south Serbia: Evidence of depleted uranium [PDF]
Nuclear Technology and Radiation Protection, 2004 Inductively coupled plasma mass spectrometry and thermal ionization mass spectrom - etry were used to measure concentration of uranium and thorium as well as isotopic composition of uranium respectively in soil samples collected around south Serbia.
Sahoo Sarata Kumar +4 more
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