Hamed Farrokhi-Asl
Faculty of Industrial Engineering, Iran University of Science & Technology, Tehran, Iran
[ 1 ] - A New Mathematical Model in Cell Formation Problem with Consideration of Inventory and Backorder: Genetic and Particle Swarm Optimization Algorithms
Cell Formation (CF) is the initial step in the configuration of cell assembling frameworks. This paper proposes a new mathematical model for the CF problem considering aspects of production planning, namely inventory, backorder, and subcontracting. In this paper, for the first time, backorder is considered in cell formation problem. The main objective is to minimize the total fixed and variable...
[ 2 ] - Applying queuing theory for a reliable integrated location –inventory problem under facility disruption risks
This study considers a reliable location – inventory problem for a supply chain system comprising one supplier, multiple distribution centers (DCs), and multiple retailers in which we determine DCs location, inventory replenishment decisions and assignment retailers to DCs, simultaneously. Each DC is managed through a continuous review (S, Q) inventory policy. For tackling real world conditions...
[ 3 ] - Optimal credit period and lot size for deteriorating items with expiration dates under two-level trade credit financing and back order
In a supplier-retailer-buyer supply chain, the supplier frequently offers the retailer a trade credit of periods, and the retailer in turn provides a trade credit of periods to her/his buyer to stimulate sales and reduce inventory. From the seller’s perspective, granting trade credit increases sales and revenue but also increases opportunity cost (i.e., the capital opportunity loss during cre...
[ 4 ] - Solving a multi-objective mixed-model assembly line balancing and sequencing problem
This research addresses the mixed-model assembly line (MMAL) by considering various constraints. In MMALs, several types of products which their similarity is so high are made on an assembly line. As a consequence, it is possible to assemble and make several types of products simultaneously without spending any additional time. The proposed multi-objective model considers the balancing and sequ...
[ 5 ] - Comparing supply side and demand side options for electrifying a local area using life cycle analysis of energy technologies and demand side programs
The main aim of this paper is to select the best portfolio of renewable energy technologies (RETs) for electrifying an elected area which is not connected to any other grids. Minimizing total costs of the system is considered as the main factor in finding the best decision. In order to make the optimum plan more applicable, the technique of life cycle analysis is applied. This technique takes i...
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