Seyed Jafar Sadjadi

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Department of Industrial Engineering, Islamic Azad University – Parand Branch, Parand, Iran Grupo de Sistemas de Optimización Aplicada, Instituto Tecnológico de Informática (ITI), Ciudad Politécnica de la Innovación, Edificio 8G, Acceso B, Universidad Politécnica de Valencia, Camino de Vera s/n, 46022 Valencia, Spain Department of Industrial Engineering,(More)
This paper proposes a genetic algorithm (GA) to solve a price discrimination model developed to determine the product’s selling price in two markets. The model considers the production as a function of price in one market and as a function of price and marketing expenditure in other market. The cost of production is also assumed to be a function of(More)
In this paper, a production quantity model with random defective items, service level constraints and repair failure is studied. The existence of only one machine results in limited production capacity and partial backordering. The aim of this research is to determine the optimal cycle length, optimal production quantity and optimal backordered quantity of(More)
Investment strategic planning is one of themost important areas of research in financial engineering. The primary concern of this research is to determine the amount of investment in different planning areas especially when the rate of borrowing is greater than that of lending. The proposed research method in this paper is a form of fuzzy linear programming(More)