Mathematical modelling
Applying mathematical modeling to create job rotation for improve workforce performance in semi-automatic systems

M. Bakhshi; S. E. Hashemi; H. Dezhdar

Volume 9, Issue 4 , December 2020, , Pages 318-327

https://doi.org/10.22105/riej.2020.243223.1140

Abstract
  In this research, we present a mathematical model for allocating people to different jobs and shifting employees between related jobs. This action will reduce the repetitive activities workload and ergonomic risks at the planned time horizon, and finally increases the organization's efficiency. In this ...  Read More

Operations Research
A Taghuchi based Multi Objective Time-Cost Constrained Scheduling for Resource Availability Cost Problem: A Case Study

M. Rabbani; S. Aghamohamadi; H. Farrokhi-Asl; M. Alavi mofrad

Volume 6, Issue 4 , December 2017, , Pages 269-282

https://doi.org/10.22105/riej.2017.96349.1008

Abstract
  In this paper, a new multi-objective time-cost constrained resource availability cost problem is proposed. The mathematical model is aimed to minimize resource availability cost by considering net present value of resource prices in order to evaluate the economic aspects of project to maximize the quality ...  Read More