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1
Content available Non-thermal plasmas induced electrostatic stress on corneocyte desquamation
Tiwari P. K., Lee Y. S.
Acta of Bioengineering and Biomechanics
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2013
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Vol. 15, no. 2
65--72
EN
The advent of non-thermal plasma brought a breakthrough in exploring its clinical applications in dermatology to bolster tissue generation in the domain of plasma medicine. This study aimed to investigate the effect of non-thermal plasma on the corneocyte of the skin cells, in treating superficial skin diseases via the process of corneocyte desquamation, a probable mechanism for skin cell proliferation. The postulated brick and mortar arrangement of corneocytes in the stratum corneum was modeled consisting of three corneocytes and three corneodesmosomes in a simulation domain of 40.30 × 3.00 μm2 using Maxwell 2D finite element analyzer. The corneocyte desquamation was quantified by the weakening of corneodesmosomes due to electrostatic pressure (~530 MV/m) on the corneodesmosome surface exceeding its tensile strength (~76 MPa). A mathematical model displaying a relationship between the plasma potential and the skin tensile strength is also presented in this investigation. The non-thermal plasma could emerge as a clean and dry therapy to treat superficial skin diseases. Our study propels investigating the interaction of non-thermal plasma with the wet tissue in the deeper layer (dermis) of the skin cells and also, the development of such instruments for a comprehensive skin treatment.
2
Content available Elektryzacja jako źródło zagrożenia
Cybulski K., Wiechuła B.M.
Prace Naukowe GIG. Górnictwo i Środowisko / Główny Instytut Górnictwa
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2011
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nr 3
5-23
PL
W artykule przedstawiono problemy związane z elektryzacją i jej skutkami. Pomiar ładunku na na-elektryzowanym materiale umożliwia określenie początku wystąpienia wyładowania oraz ocenę prawdopodobieństwa zapłonu otaczającej atmosfery wybuchowej. Naelektryzowany nieprzewodzący materiał niemetalowy na swojej powierzchni wytwarza nadmiarowy ładunek, który może stać się efektywnym źródłem iskrowych wyładowań elektrostatycznych.
EN
The article presents problems connected with electrification and its effects. Measurement of charge on electrified material enables to more or less accurately assess and predict the beginning of discharge process and to assess the probability of inflammation of the surrounding explosive atmosphere. Electrified non-conductive and non-metallic materiał produces on its surface excess charge, which may become an effective source of spark electrostatic discharge.
3
Content available remote On motion of macroscopic particles in some technological systems
Bernat M., Bernatova R.
International Journal of Applied Mechanics and Engineering
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2008
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Vol. 13, no 3
829-835
EN
The article deals with the application of the research method of mathematical modelling and simulation to solving some issues in the area of electrostatic technology. It focuses on the process of electrostatic separation and sorting. The author emphasises the necessity of taking into account the existence and effects of the gradient force acting in the process. The computer models may be applied both by project and design engineers using the most advanced computer-aided design of electrostatic technologies, for example in these areas where computer simulation is highly required such as in prognosing and diagnosing critical operating states.
4
Content available remote Computer modelling and simulation as a research and proposal method of some selected physical-technical systems
Bernat M., Cimbala R.
International Journal of Applied Mechanics and Engineering
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2008
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Vol. 13, no 1
263-271
EN
The article deals with the application of the research method of mathematical modelling and simulation at solving some issues in the area of electrostatic technology. It focuses on the process of electrostatic separation and sorting. The author emphasises the necessity of taking into account the existence and effects of gradient force acting in the process. The presented computer models may be applied both by profect and design engineers using the most advanced computer-aided design of electrostatic technologies, f.e. in these areas where computer simulation is highly required such as in prognosing and diagnosing critical operating states.
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