This paper provides a heuristic procedure for solving the constrained flow-shop scheduling problems of n-jobs on m-machines. We obtained a schedule with a set of n-jobs to minimize the mean weighted flow-time. This method is very easy to understand and to apply. It will also help managers in the scheduling related issues by aiding them in the decision making process and providing an optimal or ...

In this paper a Genetic Algorithm (GA) approach is presented to solve the N-Jobs M-Machines Permutation Flow-Shop Scheduling Problem (PFSP) with Break-down times. In comparison with other methods that start with a solution obtained with the Johnson’s Algorithm (or another greedy approach), the presented GA method starts with randomly generated solutions and within 100 iterations is able to obta...

This paper presents a bicriteria in n-jobs, three machines flow shop scheduling to minimize the total elapsed time and rental cost of the machines taken on rent under a specified rental policy in which the processing time, independent setup time each associated with probabilities including transportation time and job block criteria. Further the concept of the break down interval for which the m...

This paper shows how standard arguments supporting the imposition of price caps break down in the presence of demand uncertainty. In particular, though in the deterministic case the introduction or lowering of a price cap (above marginal cost) results in increased production, increased total welfare, decreased prices, and increased consumer welfare, we show that all of the above comparative sta...

seed hardiness in annual medics plays an important role in soil seed bank reserve to ensure ley farming system sustainability. to study the level of seed hardiness in annual medic (medicago scuttelata var.rabinson) at different fertilizing treatments and growing conditions (irrigated and dry farming system), an experiment was conducted at two research stations (sararod, research institute and s...