Quantitative Risk Evaluation Model of the Multilevel Complex Structure Hierarchical System in the Petrochemical Industry

<table class="fixed-width table-group" id="tab5"><tr><td><table class="table"><colgroup><col style="width:12.86em"/><col style="width:14.85em"/></colgroup><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr class="thead"><td class="align_left"><b>Fuzzy linguistic description</b></td><td class="align_center"><b>Crisp number by defuzzification</b></td></tr><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr><td class="align_left">Very low</td><td class="align_center">0.196</td></tr><tr><td class="align_left">low</td><td class="align_center">0.370</td></tr><tr><td class="align_left">moderate</td><td class="align_center">0.583</td></tr><tr><td class="align_left">high</td><td class="align_center">0.804</td></tr><tr><td class="align_left">Very high</td><td class="align_center">0.952</td></tr><tr class="table-tr"><td colspan="2"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>The quantitative transformation results of the fuzzy linguistics.</div>

Mathematical Problems in Engineering

tab5

Table 5

Table 5: Quantitative Risk Evaluation Model of the Multilevel Complex Structure Hierarchical System in the Petrochemical Industry 