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supply-chain-network-design
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Optimizing decentralized production–distribution planning problem in a multi-period supply chain network under uncertainty
, Article Journal of Industrial Engineering International ; 2017 , Pages 1-16 ; 17355702 (ISSN) ; Mahdavi, I ; Mahdavi Amiri, N ; Paydar, M. M ; Sharif University of Technology
Abstract
Decentralized supply chain management is found to be significantly relevant in today’s competitive markets. Production and distribution planning is posed as an important optimization problem in supply chain networks. Here, we propose a multi-period decentralized supply chain network model with uncertainty. The imprecision related to uncertain parameters like demand and price of the final product is appropriated with stochastic and fuzzy numbers. We provide mathematical formulation of the problem as a bi-level mixed integer linear programming model. Due to problem’s convolution, a structure to solve is developed that incorporates a novel heuristic algorithm based on Kth-best algorithm, fuzzy...
Optimizing decentralized production–distribution planning problem in a multi-period supply chain network under uncertainty
, Article Journal of Industrial Engineering International ; Volume 14, Issue 2 , 2018 , Pages 367-382 ; 17355702 (ISSN) ; Mahdavi, I ; Mahdavi Amiri, N ; Paydar, M. M ; Sharif University of Technology
SpringerOpen
2018
Abstract
Decentralized supply chain management is found to be significantly relevant in today’s competitive markets. Production and distribution planning is posed as an important optimization problem in supply chain networks. Here, we propose a multi-period decentralized supply chain network model with uncertainty. The imprecision related to uncertain parameters like demand and price of the final product is appropriated with stochastic and fuzzy numbers. We provide mathematical formulation of the problem as a bi-level mixed integer linear programming model. Due to problem’s convolution, a structure to solve is developed that incorporates a novel heuristic algorithm based on Kth-best algorithm, fuzzy...
Viable supply chain network design by considering blockchain technology and cryptocurrency
, Article Mathematical Problems in Engineering ; Volume 2021 , 2021 ; 1024123X (ISSN) ; Safavi, S ; Gharehbaghi, A ; Ghaboulian Zare, S ; Hazrati, R ; Weber, G. W ; Sharif University of Technology
Hindawi Limited
2021
Abstract
Nowadays, using Blockchain Technology (BCT) is growing faster in each country. It is essential to apply BCT in Supply Chain Network Design (SCND) and is considered by the designer and manager of SC. This research indicates Viable Supply Chain Network Design (VSCND) by applying BCT. A new form of two-stage robust optimization is suggested. Facility locations and activation BCT for VSCND is the first stage of decisions; finally, we determine flow transshipment between components in the next stage. The GAMS-CPLEX is used for solving the model. The results show that running BCT will decrease 0.99% in costs. There is an economic justification for using BCT when demand is high. A fix-and-optimize...
The healthcare supply chain network design with traceability: A novel algorithm
, Article Computers and Industrial Engineering ; Volume 161 , 2021 ; 03608352 (ISSN) ; Akhavan Niaki, S. T ; Akhgar, M ; Ansari, M ; Sharif University of Technology
Elsevier Ltd
2021
Abstract
Both governments and health-related organizations must immediately act after a natural disaster happened, i.e., providing essential equipment and medicines to injured people as soon as possible and adequately. To achieve this goal, planning the distribution and the inventory of crucial items during a scenario of disasters, a relief supply chain network with four echelons, namely suppliers, warehouses, disaster locations, and medical centers, is designed. In this work, a bi-objective nonlinear mathematical model that follows two main concerns is proposed. First, we wish to minimize the supply chain costs in terms of both the traveling time between echelons and the inventory costs. Second, we...
An optimisation model for cloud-based supply chain network design: Case study in the banking industry
, Article International Journal of Communication Networks and Distributed Systems ; Volume 27, Issue 2 , 2021 , Pages 119-146 ; 17543916 (ISSN) ; Akhavan Niaki, S. T ; Rahbarjou, M ; Sharif University of Technology
Inderscience Publishers
2021
Abstract
New technologies provide tremendous integration opportunities not only for the flow of goods and services but also for managing information and financial data. Flexibility and agility are important metrics in organisations. Cloud technology can have a significant impact on improving flexibility and agility in organisations through faster data transfer between supply chain components. In this study, we present an optimisation model for cloud-based supply chain network design (SCND) problem by optimising the costs and quality of service (QoS). We present a case study in the banking industry to show the applicability and exhibit the efficacy of the proposed optimisation model. Copyright © 2021...
Integrated Supply Chain Network Design in Time-Sensitive Products
, M.Sc. Thesis Sharif University of Technology ; Akbari Jokar, Mohammad Reza (Supervisor)
Abstract
Logistics includes the flow of goods, information and other sources between production and consumption node to meet the demand of customers. Basically, Logistics includes the integration of information, transportation and inventory. This study is in association with how to phase-out the old product when the new one is developed, and also is about how to manage the remaining inventory in a phase-out period focusing on such decisions as time and discount amount. Often in retailing system, old products have been phased out with an introduction of a new one by distributors. In order to sell this amount of products in a specific time period retailers need to create a mechanisim to phase-out the...
Supply Chain Network with Normal Demand
, M.Sc. Thesis Sharif University of Technology ; Modarres Yazdi, Mohammad (Supervisor)
Abstract
In this thesis, we focus on some internal organization issues of the supply chain; in particular, we analyze some network design problems which are typical of producer companies. The aim is to optimize the flow of goods through the literature distribution network, from the plants where the goods are produced (supply points) to the demand points, which are essentially distributors such as wholesalers or retailers. The system addresses a class of distribution network design problems, which is characterized by multiple product families, a central manufacturing plant site, multiple central warehouses and distribution center, and retail outlets (customer zones) which demand multiple units of...
An Integrated Multi-criteria Decision Making Approach for a Sustainable Supply Chain Network Design
, M.Sc. Thesis Sharif University of Technology ; Shavandi, Hassan (Supervisor)
Abstract
Growing concerns towards social and environmental issues besides economic in supply chain causes that the sustainable supply chain become one of the most important concepts in a supply chain. Likewise, a supply chain network design which is profound influence on long-run economic, environmental, and social decisions is one of the key and strategic topics in a supply chain. In this study, we represent an integrated approach for a three-layer sustainable supply chain network design with routing and different transportation modes, the objectives of which are minimizing total costs, a minimizing 〖CO〗_2 emissions of transportation, and maximizing total values of social purchasing. In this...
Green Flexible Supply Chain Network Design; A Genetic Algorithm Approach
, M.Sc. Thesis Sharif University of Technology ; Akbari Jokar, Mohammad Reza (Supervisor)
Abstract
This study aimed to develop a green network design for a multi-echelon multi-product supply chain with a focus on bottleneck points as the means of enhancing unutilized capacities to maintain the optimal levels of flexibility. Two different models were developed to compare different approaches of flexible capacity planning by minimizing the total cost of facility establishment as well as their utilization and transportation cost. The proposed mixed-integer linear programming model was characterized by its novelty in taking bottleneck points into account to build a platform for flexible capacity planning required for responding to uncertainties such as fluctuations in demand and new product...
A Model using Interval-Based Multi-Criteria Decision-Making for Assessing Blockchain-Iot Technology in Supply Chain Systems
,
M.Sc. Thesis
Sharif University of Technology
;
Khalili Nasr, Arash
(Supervisor)
Abstract
Supply Chain (SC) systems stand at the cusp of a transformative era, thanks to the synergistic integration of Blockchain Technology (BT) and the Internet of Things (IoT). This confluence promises a plethora of benefits, encompassing heightened data protection, unparalleled transparency, robust fraud prevention mechanisms, meticulous traceability, and substantial financial efficiencies. However, the technological landscape is still in its embryonic phase, leading to a pronounced knowledge void and a palpable uncertainty in the realm of platform selection for SC systems. The challenge is further compounded by the intricate web of criteria, often with overlapping and interdependent facets....
A Blockchain Based System to Ensure Transparency and Originality in Supply Chain
, M.Sc. Thesis Sharif University of Technology ; Akhavan Niaki, Taghi (Supervisor)
Abstract
Emergence of crypto-currency and blockchain technology revolutionize supply chain processes. In addition, customer needs for more information on products or services from origin to destination, highlights the necessity of transparency, originality and traceability in supply chains. This research is aimed to develop a blockchain based system ascertaining supply chain transparency and originality. To this aim, a joint pricing and closed-loop supply chain network design problem is selected as a good platform to implement it. Due to increasing concerns on environmental issues and maximizing job opportunities, sustainability is also considered in the proposed problem. To ascertain transparency...
A bi-objective integrated procurement, production, and distribution problem of a multi-echelon supply chain network design: A new tuned MOEA
, Article Computers and Operations Research ; Volume 54 , February , 2014 , Pages 35-51 ; ISSN: 03050548 ; Rahmati,S. H. A ; Niaki, S. T. A ; Zaretalab, A ; Sharif University of Technology
Abstract
Efficient management of supply chain (SC) requires systematic considerations of miscellaneous issues in its comprehensive version. In this paper, a multi-periodic structure is developed for a supply chain network design (SCND) involving suppliers, factories, distribution centers (DCs), and retailers. The nature of the logistic decisions is tactical that encompasses procurement of raw materials from suppliers, production of finished product at factories, distribution of finished product to retailers via DCs, and the storage of raw materials and end product at factories and DCs. Besides, to make the structure more comprehensive, a flow-shop scheduling model in manufacturing part of the SC is...
An outer approximation method for an integration of supply chain network designing and assembly line balancing under uncertainty
, Article Computers and Industrial Engineering ; Volume 83 , 2015 , Pages 297-306 ; 03608352 (ISSN) ; Salehi, N ; Sharif University of Technology
Elsevier Ltd
2015
Abstract
In this paper a new model is proposed for the integrated problem of supply chain network designing and assembly line balancing under demand uncertainty. In this problem there are three types of entities: manufacturers, assemblers and customers. Manufacturers provide assemblers with components and assemblers use these components to produce the final products and satisfy the demand of the customers. This problem involves determining the location of manufacturers and assemblers in the network, balancing the assembly lines, and transportation of materials and products throughout the network. A mixed integer nonlinear programming formulation based on two stage stochastic programming method is...
Bioethanol supply chain network design considering land characteristics
, Article Renewable and Sustainable Energy Reviews ; Volume 119 , 2020 ; Torabi, S. A ; Avami, A ; Jolai, F ; Sharif University of Technology
Elsevier Ltd
2020
Abstract
Biomass is becoming an increasingly widespread source of energy. Yet land, as one of the most important resources in biomass production, is surprisingly understudied in the literature of biomass supply chain planning. This study proposes a novel framework that combines the literature of bioethanol supply chain design with agricultural land planning to simultaneously address optimal supply chain planning and sustainable land use in a bioethanol supply chain. A bi-objective mixed-integer linear programming (MILP) model is proposed to formulate the optimal design and planning of a bioethanol supply chain network considering competition of food and biomass feedstock over the available croplands....