Abstract
The scheduling of flexible job shop systems is one of the most important issues in the various fields of production and is currently being addressed by many researchers in the field of optimization issues. The present research includes flexible job shop scheduling problem (FJSSP) with multi-objective, minimizing maximum completion time (makespan), maximum machine workload, total machines workload and also, earliness/tardiness penalty with different constraints. In this research, the researcher is looking to design a mathematical model that can cover all the constraints and assumptions related to the problem. Therefore, the mathematical model was designed with multi-objective and different constraints with exact details and different assumptions that are consistent with the actual situation of the problem and implemented at Comex Company. What that distinguishes this research from other similar researches is the approach of multi-objective with different constraints, which, at the same time, it raises the complexity of the problem but the problem gets closer to the actual situation, with less research done. Finally, the results of the study showed that this mathematical model designed, as well as in the real environment which has the flexible job shop system, can be implemented within a reasonable time with the highest efficiency before the implementation of the model.
Highlights
Modern education sought for taking care of educational structure to be more harmonic and responsive to the rapid changes, and to train teachers to keep up with the accelerating scientific advancements, in order to implement the contemporary educational requirements (Abed Al Baqi et al, 2011)
1- What is the extent of applying effective teaching skills in teaching physical education?
The study population consisted of all the students in enrolled in physical education teaching methods course during the first semester of the academic year 2018/2019 (N=83)
Summary
Modern education sought for taking care of educational structure to be more harmonic and responsive to the rapid changes, and to train teachers to keep up with the accelerating scientific advancements, in order to implement the contemporary educational requirements (Abed Al Baqi et al, 2011). In this globalization era, the tasks and roles of physical education teachers have become weightier. The professional teachers’ competence should be combined with their abilities to comprehend the students’ dynamic behavior and development, considering that more and more problems are arising in the physical education field (Nyak and Saifuddin, 2017)
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