## 5 Conclusions
This research was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (N  
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\begin{table}
\begin{tabular}{c c c c c c c c c} \hline \hline \multirow{2}{*}{**Model**} & \multicolumn{2}{c}{**Time**} & \multirow{2}{*}{**8**} & \multirow{2}{*}{**9**} & \multirow{2}{*}{**10**} & \multirow{2}{*}{**11**} & \multirow{2}{*}{**12**} & \multirow{2}{*}{**13**} & \multirow{2}{*}{**14**} \\  & **Index** & & & & & & & & \\ \hline \multirow{4}{*}{IS} & LCL & 4.5662 & 6.5093 & 8.6112 & 10.8022 & 13.0068 & 15.1524 & 17.1769 \\  & \(\hat{\text{m}}(\text{t})\) & 14.3103 & 17.1884 & 20.1834 & 23.2124 & 26.1886 & 29.0312 & 31.6735 \\  & UCL & 24.0544 & 27.8675 & 31.7555 & 35.6225 & 39.3704 & 42.9099 & 46.1700 \\ \hline \multirow{4}{*}{Y1} & LCL & 5.7667 & 7.2337 & 8.7583 & 10.3364 & 11.9650 & 13.6419 & 15.3652 \\  & \(\hat{\text{m}}(\text{t})\) & 16.1032 & 18.2323 & 20.3893 & 22.5750 & 24.7900 & 27.0349 & 29.3106 \\  & UCL & 26.4397 & 29.2309 & 32.0204 & 34.8136 & 37.6149 & 40.4280 & 43.2559 \\ \hline \multirow{4}{*}{Y2} & LCL & 4.0712 & 5.2405 & 6.4546 & 7.7089 & 9.0000 & 10.3250 & 11.6816 \\  & \(\hat{\text{m}}(\text{t})\) & 13.5545 & 15.3237 & 17.1090 & 18.9101 & 20.7270 & 22.5594 & 24.4071 \\  & UCL & 23.0377 & 25.4069 & 27.7634 & 30.1113 & 32.4539 & 34.7937 & 37.1326 \\ \hline \multirow{4}{*}{PNZ} & LCL & 4.5713 & 6.5167 & 8.6214 & 10.8157 & 13.0240 & 15.1738 & 17.2027 \\  & \(\hat{\text{m}}(\text{t})\) & 14.3180 & 17.1991 & 20.1976 & 23.2307 & 26.2116 & 29.0592 & 31.7069 \\  & UCL & 24.0648 & 27.8815 & 31.7739 & 35.6458 & 39.3991 & 42.9446 & 46.2111 \\ \hline \multirow{4}{*}{PZ} & LCL & 4.5662 & 6.5093 & 8.6112 & 10.8022 & 13.0068 & 15.1524 & 17.1769 \\  & \(\hat{\text{m}}(\text{t})\) & 14.3103 & 17.1884 & 20.1834 & 23.2124 & 26.1886 & 29.0312 & 31.6735 \\  & UCL & 24.0543 & 27.8675 & 31.7555 & 35.6225 & 39.3704 & 42.9099 & 46.1700 \\ \hline \multirow{4}{*}{DP1} & LCL & 0.7040 & 1.9143 & 3.3740 & 5.0831 & 7.0416 & 9.2495 & 11.7068 \\  & \(\hat{\text{m}}(\text{t})\) & 7.9808 & 10.1007 & 12.4700 & 15.0887 & 17.9568 & 21.0743 & 24.4412 \\  & UCL & 15.2576 & 18.2871 & 21.5660 & 25.0943 & 28.8720 & 32.8991 & 37.1756 \\  & LCL & 4.2639 & 5.2952 & 6.4939 & 7.8690 & 9.4287 & 11.1804 & 13.1313 \\ \hline \multirow{4}{*}{DP2} & \(\hat{\text{m}}(\text{t})\) & 13.8500 & 15.4051 & 17.1661 & 19.1373 & 21.3231 & 23.7275 & 26.3548 \\  & UCL & 23.4361 & 25.5151 & 27.8383 & 30.4056 & 33.2174 & 36.2746 & 39.5783 \\ \hline \multirow{4}{*}{TC} & LCL & 4.8937 & 6.8584 & 8.9028 & 10.9735 & 13.0240 & 15.0150 & 16.9149 \\  & \(\hat{\text{m}}(\text{t})\) & 14.8047 & 17.6932 & 20.5914 & 23.4460 & 26.2115 & 28.8504 & 31.3334 \\  & UCL & 24.7156 & 28.5280 & 32.2799 & 35.9184 & 39.3990 & 42.6859 & 45.7519 \\ \hline \multirow{4}{*}{3 PD} & LCL & 4.5670 & 6.5101 & 8.6119 & 10.8028 & 13.0072 & 15.1525 & 17.1767 \\  & \(\hat{\text{m}}(\text{t})\) & 14.3115 & 17.1895 & 20.1844 & 23.2131 & 26.1890 & 29.0313 & 31.6732 \\  & UCL & 24.0560 & 27.8689 & 31.7568 & 35.6235 & 39.3709 & 42.9100 & 46.1697 \\ \hline \multirow{4}{*}{NW} & LCL & 4.6512 & 6.4371 & 8.3780 & 10.4599 & 12.6649 & 14.9604 & 17.2800 \\  & \(\hat{\text{m}}(\text{t})\) & 14.4391 & 17.0837 & 19.8559 & 22.7443 & 25.7309 & 28.7786 & 31.8071 \\  & UCL & 24.2269 & 27.7302 & 31.33337 & 35.0287 & 38.7970 & 42.5968 & 46.3342 \\ \hline \multirow{4}{*}{New} & LCL & 4.2106 & 6.0509 & 8.1732 & 10.5083 & 12.9377 & 15.3161 & 17.5104 \\  & \(\hat{\text{m}}(\text{t})\) & 13.7684 & 16.5204 & 19.5674 & 22.8105 & 26.0962 & 29.2462 & 32.1055 \\  & UCL & 23.3263 & 26.9899 & 30.9616 & 35.1128 & 39.2547 & 43.1762 & 46.7006 \\ \hline \multirow{4}{*}{**Model**} & \multicolumn{2}{c}{**Time**} & \multirow{2}{*}{**15**} & \multirow{2}{*}{**16**} & \multirow{2}{*}{**17**} & \multirow{2}{*}{**18**} & \multirow{2}{*}{**19**} & \multirow{2}{*}{**20**} & \multirow{2}{*}{**21**} \\  & **Index** & & & & & & & \\ \hline \multirow{4}{*}{GO} & LCL & 17.3596 & 18.9914 & 20.6353 & 22.2899 & 23.9543 & 25.6274 & 27.3083 \\  & \(\hat{\text{m}}(\text{t})\) & 31.9102 & 34.0140 & 36.1149 & 38.2128 & 40.3078 & 42.4000 & 44.4892 \\  & UCL & 46.4609 & 49.0366 & 51.5945 & 54.1357 & 56.6614 & 59.1725 & 61.6700 \\ \hline \multirow{4}{*}{DS} & LCL & 18.2495 & 19.9343 & 21.5408 & 23.0652 & 24.5055 &