[Retracted] Emergency Management System for Coal Mine Safety Based on IoT Technology

<table class="table-group" id="tab4"><tr><td><table class="table"><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr class="thead"><td class="align_left">Strategy</td><td class="align_center">Different input ratio (safety input : coal IoT input)</td></tr><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr><td class="align_left">Initial</td><td class="align_center">1 : 0.3</td></tr><tr><td class="align_left">Strategy 1</td><td class="align_center">0.8 : 0.5</td></tr><tr><td class="align_left">Strategy 2</td><td class="align_center">0.5 : 0.9</td></tr><tr class="table-tr"><td colspan="2"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Different investment strategies.</div>

Mobile Information Systems

tab4

Table 4

Table 4: [Retracted] Emergency Management System for Coal Mine Safety Based on IoT Technology 