a common problem arising in project management is the fact that the baseline schedule is often disrupted during the project execution because of uncertain parameters. as a result, project managers are often unable to meet the deadline time of the milestones. robust project scheduling is an effective approach in case of uncertainty. upon adopting this approach, schedules are protected against po...

this paper proposes a novel technique for solving generation scheduling and ramp rate constrained unit commitment. a modified objective function associated with a new start-up cost term is introduced in this paper. the proposed method is used to solve generating scheduling problem satisfying srr, minimum up and down time as well as ramp rate constraints. two case studies are conducted to implem...

This paper presents a new job schedule model approach which takes into account the airport problem as a whole. This includes solving the integrated air traffic flow management problems at the airport. The department and the arrival managements are solved by job scheduling, but the taxi planning and the gate assignment are also studied with job schedule models. The paper integrates them in an it...

Although several papers have studied no-idle scheduling problems, they all focus on flow shops, assuming one processor at each working stage. But, companies commonly extend to hybrid flow shops by duplicating machines in parallel in stages. This paper considers the problem of scheduling no-idle hybrid flow shops. A mixed integer linear programming model is first developed to mathematically form...

For the purpose of solving the dynamic demand of the customers in the distribution process, and reducing the distribution costs, a hybrid quantum optimization based on ant colony algorithm is proposed. A mathematical model of the dynamic scheduling problems based on the virtual multi-distribution yard is established. The quantum chromosome is constructed, and the demand of customer is updated t...

With the increase in world population, efficient production of food becomes an ever more important goal. One particular tasks associated with this goal is to find optimal crop planting time, considering allowed time windows and following objectives: (1) weekly harvest must not surplus available storage capacity produce waste, (2) labor force should be utilized manner. To tackle problem, we defi...