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Research Article

A Multiscale Differential Evolution Algorithm-Based Maintenance Plan Optimization for Building Energy Retrofitting

Table 4

Optimal maintenance time schedules.

Time scheduleBudget limit ($)Maintenance numberMaintenance instants

20,0006{14,26,38,50,62,74,86}
20,0005{14,26,38,50,62,74}
40,00012{8,18,28,…,98}
40,00012{8,18,28,…,98}
65,00034{5,8,11,…,104}
65,00034{8,11,14,…,107}

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