In this paper we integrate two decision problems arising in container terminals: the berth allocation problem, which consists of assigning and scheduling incoming ships to berthing positions, and the quay crane assignment problem, which assigns to incoming ships a certain QC profile (i.e. number of quay cranes per working shift). They are indeed strictly correlated, as the QC profile assigned t...

The capacitated vehicle routing problem (CVRP) is an interesting combinatorial optimization task, which occurs frequently in real-world applications [28]. The problem deals with scheduling a fleet of vehicles to distribute goods between depots and customers. A set of routes for vehicles should be determined, which are in some sense optimal, e.g. the shortest or the cheapest. Certain constraints...

Ships transport about 80 percent of world trade and transfer approximately three to five billion tons of ballast water internationally every year. Due to the likely presence of pollutants, the ballast water discharged by ships can have negative effects on aquatic ecosystems. This study was conducted on 10 ships that entered the Bushehr port to determine the effectiveness of the ballast water ex...

BACKGROUND The Isle of Man is a UK crown dependency able to operate a category 1 shipping register, permitting its marine administration to register vessels of unlimited size and tonnage. Little is known about work related mortality among seafarers who are employed in Isle of Man registered shipping. OBJECTIVES To establish the causes and circumstances of all work related deaths among seafare...

This study developed a decision support system (DSS) to schedule EGYPTAIR airline decisions regarding purchasing, leasing, or disposing of aircraft over period of time based on passenger demand forecasting and all costs associated with operating fleet of aircraft, the study implemented on three routes on EGYPTAIR airlines. Refer ences Hsu, C. -I. , Li, H. -C. , Liu, S. -M. , Chao, C. -C. ,2011....

Abstract This paper presents an extendable approach to the modelling and simulation of Urban Air Mobility (UAM), dissemination criteria for system systems driven studies. UAM involves a multitude complexities including airspace, fleet, demand, vertidrome management. Simulation is key enabler understanding these interaction different stakeholders within paradigm. work builds upon past research a...

n 1499, when portuguese explorer vasco da gama returned home after completing the first-ever sea voyage from Europe to India, he had less than half of his original crew with him— scurvy had claimed the lives of 100 of the 160 men. Throughout the Age of Discovery,1 scurvy was the leading cause of death among sailors. Ship captains typically planned for the death of as many as half of their crew ...

Aircraft fleet can have a major effect on the efficiency and smooth running of an airline. Constructing good quality schedules is vital for an airline to operate in an effective and efficient way in order to accomplish high levels of consumer satisfaction and to maximise profits. The robustness of an airline schedule is an indicative measure of how good the schedule is because a robust plan all...