SUMMARY In a transportation network, decision making parameters may change and may cause the optimum value of objective function to vary in a specific range. Therefore, managers try to identify the effects of these changes by sensitive analysis to find appropriate solut...

Abstract Today’s world is facing global warming as one of its main issues. A rise in carbon dioxide and other greenhouse gases concentration in the atmosphere causes this problem. A suggested method for controlling the level of greenhouse gases in the atmosphere is prev...

International audience; In this paper, we address a green delivery-pickup problem for Home Hemodialysis Machines (HHMs) categorized as scarce commodities. The system supplies the HHMs either from the central depot of the company or from the individual owners. Based on t...

Abstract Since hydrate formation could cause problems such as high pressure drop and clogging in pipelines, estimation of hydrate formation conditions is of vital importance in prevention of such problems. To do this, firstly hydrate formation conditions for methane and...

A comprehensive approach is proposed to manage landing sequences and their associated trajectories for an arbitrary number of aircraft in the vicinity of a controlled aerodrome. The current approach, similar to that of "first come, first served," could consider differen...

In wireless multimedia sensor networks (WMSNs) a sensor node may have different types of sensor which gather different kinds of data. To support quality of service (QoS) requirements for multimedia applications having a reliable and fair transport protocol is necessary....

Abstract The paper analyzes standard algorithms and software based on them to determine the optimal routes for cargo transfer in road transport systems. It was found that one of the urgent issues related to routing is to find a solution to the optimization problem by se...

Abstract The methods to collect and transport various types of medical waste are vital to the management of healthcare waste. The lack of a safe plan for the timely collection and transportation of such wastes may have an undesirable impact on the environment and public...

Advantages of polyethylene pipes over traditional steel or metal pipes have increased industry interest in the use of polyethylene (PE) pipelines for underground applications and especially in gas distribution networks. In this study, finite element analysis is used to ...

Background: Road traffic injuries (RTIs) pose a disproportionate public health burden in the low and middle-income countries (LMICs) like Uganda, with 85% of all the fatalities and 90% of all disability-adjusted life years lost reported worldwide. Of all RTIs which are ...