## 5 Results Using Test Data Obtained with FEM Model
\begin{table}
\begin{tabular}{c c c c c c c} \hline \hline
**OF and** & \multicolumn{5}{c}{**Method**} \\ \cline{3-7}
**Parameters** & \multicolumn{2}{c}{**DE/rand/l/exp**} & **DE/rand/2/exp** & **DE/best/l/bin** & **TLBO** & **ABC** \\ \hline \multirow{3}{*}{OF (\%)} & B & 3.0402 & 2.8071 & 2.8071 & 3.0402 & 2.8106 \\  & W & 3.3473 & 3.3472 & 3.3474 & 3.3474 & 3.1828 \\  & M & 3.2035 & 3.2148 & 3.2698 & 3.2673 & 2.9380 \\  & SD & \(1.4430\times 10^{-1}\) & \(1.5686\times 10^{-1}\) & \(1.3305\times 10^{-1}\) & \(1.1933\times 10^{-1}\) & \(9.7723\times 10^{-2}\) \\ \hline \(\rho_{1}\) (\(\Omega\)m) & B & 206.62 & 58.33 & 58.33 & 206.61 & 58.55 \\ \hline \(h_{1}\) (m) & B & 17.03 & 0.10 & 0.10 & 17.09 & 0.10 \\ \hline \(\rho_{2}\) (\(\Omega\)m) & B & 192.41 & 208.53 & 208.53 & 192.37 & 208.57 \\ \hline \(h_{2}\) (m) & B & 97.27 & 18.69 & 18.69 & 97.24 & 19.24 \\ \hline \(\rho_{3}\) (\(\Omega\)m) & B & 5.00 & 171.81 & 171.81 & 5.00 & 171.38 \\ \hline \hline \end{tabular}
\end{table} 
Table 8: OF and best value of the calculated parameters for 50 independent runs for the BD subarea. \begin{table}
\begin{tabular}{c c c c c c c} \hline \hline
**OF and** & \multicolumn{5}{c}{**Method**} \\ \cline{3-7}
**Parameters** & \multicolumn{2}{c}{**DE/rand/l/exp**} & **DE/rand/2/exp** & **DE/best/l/bin** & **TLBO** & **ABC** \\ \hline \multirow{3}{*}{OF (\%)} & B & 1.1966 & 1.1969 & 1.1966 & 1.1967 & 1.1973 \\  & W & 1.7280 & 1.6738 & 1.7409 & 1.6744 & 1.4790 \\  & M & 1.2570 & 1.2166 & 1.5157 & 1.3912 & 1.2340 \\  & SD & \(1.6158\times 10^{-1}\) & \(9.3316\times 10^{-2}\) & \(2.3814\times 10^{-1}\) & \(2.2395\times 10^{-1}\) & \(4.5144\times 10^{-2}\) \\ \hline \(\rho_{1}\) (\(\Omega\)m) & B & 204.30 & 204.42 & 204.30 & 204.30 & 204.42 \\ \hline \(h_{1}\) (m) & B & 48.62 & 48.26 & 48.62 & 48.63 & 48.81 \\ \hline \(\rho_{2}\) (\(\Omega\)m) & B & 3347.50 & 1124.28 & 3495.95 & 3499 \begin{table}
\begin{tabular}{c c c c c c c} \hline \hline
**OF and** & \multicolumn{5}{c}{**Method**} \\
**Parameters** & \multicolumn{2}{c}{**DE/rand/1/exp**} & **DE/rand/2/exp** & **DE/best/1/bin** & **TLBO** & **ABC** \\ \hline \multirow{3}{*}{OF (\%)} & B & 5.3682 & 3.9605 & 3.5159 & 4.5717 & 3.5846 \\  & W & 5.3735 & 5.3735 & 6.4205 & 5.3700 & 5.3712 \\  & M & 5.3692 & 5.3410 & 5.3106 & 5.3532 & 4.0532 \\  & SD & \(6.5976\times 10^{-4}\) & \(1.9721\times 10^{-1}\) & \(4.6429\times 10^{-1}\) & \(1.1165\times 10^{-1}\) & \(4.1656\times 10^{-1}\) \\ \hline \(\rho_{1}\) (\(\Omega\)m) & B & 220.82 & 42.52 & 135.81 & 213.61 & 41.59 \\ \hline \(h_{1}\) (m) & B & 83.57 & 0.10 & 0.45 & 5.58 & 0.10 \\ \hline \(\rho_{2}\) (\(\Omega\)m) & B & 31.52 & 232.40 & 238.61 & 266.98 & 235.19 \\ \hline \(h_{2}\) (m) & B & 47.32 & 80.00 & 43.73 & 22.54 & 46.70 \\ \hline \(\rho_{3}\) (\(\Omega\)m) & B & 5.00 & 5.00 & 113.84 & 146.29 & 109.72 \\ \hline \hline \end{tabular}
\end{table} 
Table 13: OF and best value of the calculated parameters for 50 independent runs for the CF subarea. \begin{table}
\begin{tabular}{c c c c c c c} \hline \hline
**OF and** & \multicolumn{5}{c}{**Method**} \\
**Parameters** & \multicolumn{2}{c}{**DE/rand/1/exp**} & **DE/rand/2/exp** & **DE/best/1/bin** & **TLBO** & **ABC** \\ \hline \multirow{3}{*}{OF (\%)} & B & 5.3682 & 3.9605 & 3.5159 & 4.5717 & 3.5846 \\  & W & 5.3735 & 5.3735 & 6.4205 & 5.3700 & 5.3712 \\  & M & 5.3692 & 5.3410 & 5.3106 & 5.3532 & 4.0532 \\  & SD & \(6.5976\times 10^{-4}\) & \(1.9721\times 10^{-1}\) & \(4.6429\times 10^{-1}\) & \(1.1165\times 10^{-1}\) & \(4.1656\times 10^{-1}\) \\ \hline \(\rho_{1}\) (\(\Omega\)m) & B & 220.82 & 42.52 & 135.81 & 213.61 & 41.59 \\ \hline \(h_{1}\) (m) & B & 83.57 & 0.10 & 0.45 & 5.58 & 0.10 \\ \hline \(\rho_{2}\) (\(\Omega\)m) & B & 31.52 & 232.40 & 238.61 & 266.98 & 235.19 \\ \hline \(h_{2}\) (m) & B & 47.32 & 80.00 & 43.73 & 22.54 & 46.70 \\ \hline \(\rho_{3}\) (\(\Omega\)m) & B & 5.00 & 5.00 & 113.84 & 146.29 & 109.72 \\ \hline \hline \end{tabular}
\end{table} 
Table 12: OF and best value of the calculated parameters for 50 independent runs for the CE subarea.