## 3 Parameters Studies and Discussions
### Orthogonal Design Test
#### 3.2.3 Selection of Active Factors
\begin{table}
\begin{tabular}{c c c c c c c c c} \hline \hline  & \multicolumn{6}{c}{\(B\) Statistic Values} & \multicolumn{6}{c}{**Critical Value**} \\ \hline
**Factors** & \(F_{z}\) & **Factors** & \(F_{x}\) & **Factors** & \(F_{y}\) & **Factors** & \(A_{c}\) & **Critical Value** \\ \hline \(x_{7}\) & - & \(x_{1}\) & - & \(x_{6}\) & - & \(x_{9}\) & - & - \\ \(x_{4}\) & - & \(x_{10}\) & - & \(x_{5}\) & - & \(x_{7}\) & - & 1.180 \\ \(x_{6}\) & - & \(x_{9}\) & - & \(x_{11}\) & - & \(x_{11}\) & - & 1.200 \\ \(x_{11}\) & - & \(x_{11}\) & - & \(x_{8}\) & - & \(x_{13}\) & - & 1.160 \\ \(x_{10}\) & - & \(x_{12}\) & - & \(x_{3}\) & - & \(x_{6}\) & - & 1.130 \\ \(x_{9}\) & - & \(x_{3}\) & - & \(x_{12}\) & - & \(x_{8}\) & - & 1.100 \\ \(x_{3}\) & - & \(x_{5}\) & - & \(x_{7}\) & - & \(x_{1}\) & - & 1.065 \\ \(x_{5}\) & - & \(x_{8}\) & - & \(x_{9}\) & - & \(x_{3}\) & - & 1.030 \\ \(x_{12}\) & - & \(x_{6}\) & - & \(x_{1}\) & - & \(x_{2}\) & - & 1.011 \\ \(x_{8}\) & 0.3200 & \(x_{7}\) & - & \(x_{10}\) & - & \(x_{5}\) & 0.9544 & 0.991 \\ \(x_{13}\) & 1.1258 & \(x_{4}\) & - & \(x_{4}\) & - & \(x_{10}\) & 1.0293 & 0.975 \\ \(x_{11}\) & 1.9125 & \(x_{2}\) & 0.9009 & \(x_{2}\) & 0.5550 & \(x_{12}\) & 1.1122 & 0.959 \\ \(x_{2}\) & 3.6180 & \(x_{13}\) & 2.1199 & \(x_{13}\) & 2.1932 & \(x_{4}\) & 1.6703 & 0.947 \\ \hline \hline \end{tabular}  
* The blue markers mean \(B\) statistic values of factors are higher than the critical value.  
\end{table} 
Table 6: \(B\) statistic values of 13 analysis factors. \begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline  & \multicolumn{6}{c}{_P_ **statistic Values**} & \multicolumn{2}{c}{**Critical Value**} \\ \hline
**Factors** & \(F_{z}\) & **Factors** & \(F_{x}\) & **Factors** & \(F_{y}\) & **Factors** & \(A_{c}\) & **Critical Value** \\ \hline \(x_{7}\) & 0.00790 & \(x_{1}\) & 0.00768 & \(x_{6}\) & 0.02687 & \(x_{9}\) & 0.01166 & 1.310 \\ \(x_{4}\) & 0.01772 & \(x_{10}\) & 0.00845 & \(x_{5}\) & 0.02823 & \(x_{7}\) & 0.01526 & 1.310 \\ \(x_{6}\) & 0.02000 & \(x_{9}\) & 0.03039 & \(x_{11}\) & 0.03965 & \(x_{11}\) & 0.09706 & 1.310 \\ \(x_{11}\) & 0.03221 & \(x_{11}\) & 0.04104 & \(x_{8}\) & 0.04925 & \(x_{13}\) & 0.09778 & 1.310 \\ \(x_{10}\) & 0.07215 & \(x_{12}\) & 0.04635 & \(x_{3}\) & 0.06652 & \(x_{6}\) & 0.14037 & 1.310 \\ \(x_{9}\) & 0.07762 & \(x_{3}\) & 0.04942 & \(x_{12}\) & 0.07958 & \(x_{8}\) & 0.16516 & 1.310 \\ \(x_{3}\) & 0.08465 & \(x_{5}\) & 0.09803 & \(x_{7}\) & 0.08101 & \(x_{11}\) & 0.45239 & 1.310 \\ \(x_{5}\) & 0.08554 & \(x_{8}\) & 0.21925 & \(x_{9}\) & 0.13166 & \(x_{3}\) & 0.70315 & 1.310 \\ \(x_{12}\) & 0.09204 & \(x_{6}\) & 0.31655 & \(x_{1}\) & 0.18917 & \(x_{2}\) & 1.17224 & 1.310 \\ \(x_{8}\) & 0.15825 & \(x_{7}\) & 0.35287 & \(x_{10}\) & 0.19642 & \(x_{5}\) & 1.63578 & 1.310 \\ \(x_{13}\) & 1.54362 & \(x_{4}\) & 0.68738 & \(x_{4}\) & 0.32873 & \(x_{10}\) & 2.22484 & 1.310 \\ \(x_{1}\) & 5.40143 & \(x_{2}\) & 0.75835 & \(x_{2}\) & 0.84857 & \(x_{12}\) & 3.2541 & 1.310 \\ \(x_{2}\) & 67.52536 & \(x_{13}\) & 11.30908 & \(x_{13}\) & 14.86887 & \(x_{4}\) & 15.81833 & 1.310 \\ \hline \hline \end{tabular}  
* The blue markers mean \(B\) statistic values of factors are higher than the critical value.  
\end{table} 
Table 5: \(P\) statistic values of 13 analysis factors.