Ignition and advancement of surface discharges at atmospheric air under positive lightning impulse voltage depending on perpendicular electric stress and solid dielectrics: modelling of the propagating phenomenology | The European Physical Journal Applied Physics (EPJ AP)

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Table 1

Analysis of regression parameters and adopted equations for thermal conductivity data of atmospheric air.

Coefficients	SSE	RMSE	R²	Adj. R²
a₁ = 1.677 e−15 b₁ = 4	0.3041	0.2084	0.9214	0.9211
a₃ = 0.2962 a₂ = 0.217 a₁ = 0.1115 a₀ = 0.2776	0.1985	0.2228	0.9487	0.9102
a₄ = 0.02495 b₄ = 7.451 e−04	0.1908	0.1783	0.9507	0.9424

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