Table 2: The results of models (9)–(11).

Model Result Optimal solution Objective function value

Model (10) Result 1 0.1916 0.6885 0.1199 0.4157
Model (11) Result 2 0.9209 0.0668 0.0123 0.5525
Model (12) Result 3 0.0011 0.0123 0.9866 0.6890