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. Author manuscript; available in PMC: 2020 Jun 20.
Published in final edited form as: Sci Total Environ. 2020 Mar 6;722:137701. doi: 10.1016/j.scitotenv.2020.137701

Fig. 4.

Fig. 4.

The comparison of genetic algorithm and grid searching method in the computational time with the different number of variable control factors to search the same least-cost control strategies satisfying the targets.