This research is motivated by the practical pre-steelmaking stage in large iron and steel companies, which have steady heavy demands for steelmaking production process. Our problem studied stage, consists of two steps that are needed each convertor before During step, a necessary transportation must be operated crane. In contrast to classical two-machine flowshop during both machines fixed, the...

Motivated by the call of International Maritime Organization to meet emission targets 2030, this study considers two important practical aspects quay crane scheduling: efficiency and energy consumption. More precisely, we introduce bi-objective scheduling problem where objective is minimize vessel’s completion time crane’s This done formulating a mixed-integer programming model. A branch-and-bo...

The main challenge for a container terminal is to maximize its throughput using limited resources subject to various operational constraints under uncertainty. Traditional methods try to achieve this through an optimized plan by solving a quay crane scheduling problem; but the plan may become obsolete or infeasible after shocks (changes in the system due to uncertainty). To respond to shocks th...

We study the coordinated scheduling problem of hybrid batch production on a single batching machine and two-stage transportation connecting the production, where there is a crane available in the first-stage transportation that transports jobs from the warehouse to the machine and there is a vehicle available in the second-stage transportation to deliver jobs from the machine to the customer. A...

In the operations research (OR) literature on port operations planning, there are a significant number of studies addressing decision problems in the context of container terminal management. Bulk terminals on the other hand, have been largely ignored. In this thesis, we study some of the key decision problems such as the berth allocation problem and the yard assignment problem in the bulk cont...

An approach to the problem of deciding which equipment and manpower must be allocated over a sequence of work shifts is presented. Once these resources are given, a feasible and near-optimal sequence of operations to load and unload a set of ships harboured in an Intermodal Container Terminal is found. The solution of the resource allocation problem is based on a network design formulation that...

Railway yard is the basic composition unit of railways, therefore, the efficiency and quality of railway yard design have a crucial effect on the construction and operation of railways. Plane design is the basis and core of railway yard design, consequently, it is significant to research plane design of railway yard. In this study, through analysis and summary of the research status as well as ...