International Journal of Supply Chain and Operations Resilience (6 papers in press)
An Integrated Strategic-Operational Supply Chain Network Design: A Case of Consumer Goods Supply Chain
by Aber Elsaleiby
Abstract: This study is motivated by a real-world supply chain that expects unprecedented high demand for some of its products. The fast-moving consumer goods supply chain under study is characterized by a large number of supply points (manufacturing plants) and a limited number of warehouses. It operates under the avoidance of missed demand policy. The aim of this research is to develop a large-scale supply chain model that can enable supply chain managers in general, and the manager of this supply chain in particular, to function under various circumstances. The model is formulated using Mixed Integer Linear Programming (MILP). The proposed model is verified and validated to assure accuracy and credibility. Model verification is done by the aid of data generated for supply chain networks with different sizes using Matlab software. Validation of the models assumptions, structure and objective is done through intensive discussion with supply chain experts from industry and academia. The paper discusses managerial and practical implications of the model.
Keywords: Supply Chain Network Design; fast-moving consumer goods; Mixed Integer Linear Programming; Case Study.
Special Issue on: CiLOG Quantitative Tools for Logistics Competitiveness from the Perspective of Supply Chain Management
Genetic Model for Supply Chain Inventory Optimization
by Mandeep Mittal, Charushi Nagpal, Nandini Malhotra, Annu Lambora, Reshu Agarwal, Sumil Mehta
Abstract: Inventory management is known to be an important aspect in supply chain models. The methodologies used in inventory optimization intend to reduce the cost of supply chain by controlling the inventory in a desired manner, so that the members of supply chain will not be affected by abundance or shortage of stock. In this paper, an efficient approach based on genetic algorithm is proposed in order to reduce the total cost of supply chain. A numerical example is used to explain the new approach. The results show that the proposed approach gains an insight into the supply chain models and is applicable for reducing overall supply chain cost.
Keywords: Supply chain;Inventory Management;Genetic Algorithm.
Analysis of the impact of the increase of production volume on the material supply system and work in process through simulation scenarios
by Jacob Ortega Gómez, José Alfredo Jiménez García, Andrea Verónica Balderas Arriaga, Armando Javier Rios Lara
Abstract: In this work, we present a detailed analysis of the improvements that are required when a company needs to increase its production capacity. In particular, it focuses on the effects on the material supply system since the flow of materials must be constant to maintain the production lines in continuous operation. For this a computer simulation model of the current situation of the company was developed, which will be called KS, where 430,000 pieces are currently produced for the General Motors (GM) model, and the future situation, with the double of parts. Due to the reduction in computing costs, simulation has become a tool increasingly used in the industry as a necessary tool to solve problems in complex systems that are practically impossible to model mathematically. The company where the research was developed presents problems of overwork in process and it is foreseen that the problem will be more complicated when increasing the production volume, for this reason, simulation is considered as the ideal tool for the analysis of this problem; specific. The complete modeling of the KS company was achieved, which allowed observing the main problems such as identifying the bottleneck and the reason for the high levels of work in process. Through different experiments in the model, a solution to these problems was observed and the satisfactory production volume of eight hundred and sixty thousand pieces was achieved. This type of models leaves a great amount of possibilities to work on long-term solutions, such as the implementation of a metaheuristic to the routes of the forklifts to make more efficient the delivery of materials and reduce losses due to lack of supply. For time reasons, we only experimented with empirical solutions based on the problems observed in the model.
Keywords: Simulation; work in progress; supply of materials.
Selecting the Best Local /Internal Logistic Service Provider in a Natural Disaster: A Game Theoretic Perspective in Relation to Flash Floods in Sri Lanka
by Shanaka Suren Rajakaruna, Chen Yan, A.W. Wijeratne
Abstract: In the light of increasing attention to humanitarian operations, logistics have taken an unprecedented turn in the humanitarian sector. Humanitarian Logistics (HL) has now become one of the significant factors in assisting any disaster. This paper presents a conceptual model to determine an evaluation method to find out the best logistic service provider (LSP) amongst the Local/Internal players in distributing aid. A game theory-based application model has been designed to select the best player. Variables which have an effect on performance were considered when developing the initial utility values. Model provides a pre-entry evaluation system, will assist various donors in effective management of delivery and distribution of humanitarian aid to recipients. The model was tested as a case study in a recent torrential rains and flash flood occurred in Sri Lanka. It is recommended to further test and improve this conceptual model to gain more effective results.
Keywords: Humanitarian Logistics; Performance Measures; Game Theory; Sri Lanka.
Supply Chain: An Input-Output Perspective. An Example of Application in the Dairy Products Industry
by Rodrigo Gabriel Carranza Trinidad, Arturo Gerardo Valdivia Flores
Abstract: In the globalized economy, a new territorial order and reorganization has been created, which is threatened by global economic uncertainty, makes investments falter and inhibits the economic growth of countries. One way of counteracting this uncertainty is to approach scenarios through supply chain methodology in different branches of activity. This work shows the use of selected information in economic surveys to delineate alternative scenarios at the Supply Chain (CS) level with the Input-Output Matrix (MIP). For this purpose, technical, scientific and official information on the subject has been considerate, as well as its impact on global economic phenomena.
Keywords: Information; performance; logistics; challenges; uncertainty; scenarios; regions; effect; globalization; supply chain; input-output matrix; tools.
Analysis of network attributes: potential implementation to the Red Nacional de Caminos de M
by Jared Piña-Barcenas, Carlos Mario Pérez-González, Pamela Hernández-Garfias
Abstract: The Red Nacional de Caminos de M
Keywords: Network analysis; Graph theory; Transport infrastructure; Space networks; Road networks.