A METAHEURISTIC METHOD FOR THE MULTIRETURN-TO-DEPOT PETROL TRUCK ROUTING PROBLEM WITH TIME WINDOWS

Abstract The petrol truck routing problem is an important part of the petrol supply chain.This study focuses on determining routes for distributing petrol products from a depot to petrol stations with the objective of minimizing the total travel cost and the fixed cost required to use the trucks.We propose a mathematical Liquid Soap model that cons

BACKGROUND: There have Flint Lighter been few studies on children hospitalized with influenza published from mainland China.We performed a retrospective review of medical charts to describe the epidemiology, clinical features and direct medical cost of laboratory-proven influenza hospitalized children in Suzhou, China.METHODS: Retrospective study o