Table 1 Synthetic dataset parameters... | Emerald Publishing

Table 1

Synthetic dataset parameters

Parameter	Value	Description
Temperature range	423–483 K	Accelerated thermal aging levels
Relative humidity (RH)	0–0.4	Surface moisture influence
Time range	0–180 days	Short-term PINN training window
Depth range	0–0.5 mm	Through-thickness oxygen diffusion
Reaction activation energy	80 kJ/mol	Literature-based degradation value
Diffusion coefficient $D_{0}$	$5 \times 10^{- 6}$ mm²/s	Reference diffusion coefficient
Surface saturation $c_{\infty}$	1.0	Normalized oxygen concentration
Noise level (⁠ $c, P$ ⁠)	0.005–0.007	Instrument-scale stochastic noise

Parameter	Value	Description
Temperature range	423–483 K	Accelerated thermal aging levels
Relative humidity (RH)	0–0.4	Surface moisture influence
Time range	0–180 days	Short-term PINN training window
Depth range	0–0.5 mm	Through-thickness oxygen diffusion
Reaction activation energy	80 kJ/mol	Literature-based degradation value
Diffusion coefficient $D_{0}$	$5 \times 10^{- 6}$ mm²/s	Reference diffusion coefficient
Surface saturation $c_{\infty}$	1.0	Normalized oxygen concentration
Noise level ( $c, P$ )	0.005–0.007	Instrument-scale stochastic noise