Heuristics for the Hybrid Flow Shop Scheduling Problem with Sequence-Dependent Setup times

<table class="table-group" id="tab12"><tr><td><table class="table"><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr class="thead"><td class="align_left">Stage</td><td class="align_center" colspan="2">1</td><td class="align_center" colspan="2">2</td></tr><tr class="thead"><td class="align_left">Machine</td><td class="align_center">1</td><td class="align_center">2</td><td class="align_center">1</td><td class="align_center">2</td></tr><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr><td class="align_left">Operation</td><td class="align_center">31</td><td class="align_center">25</td><td class="align_center">30</td><td class="align_center">21</td></tr><tr><td class="align_left">Idle</td><td class="align_center">18</td><td class="align_center">15</td><td class="align_center">16</td><td class="align_center">14</td></tr><tr class="table-tr"><td colspan="5"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Unit time of energy usage (operation and idle) on each machine.</div>

Mathematical Problems in Engineering

tab12

Table 12

Table 12: Heuristics for the Hybrid Flow Shop Scheduling Problem with Sequence-Dependent Setup times 