Saeed Yaghoubi

• PhD
• Professor (Associate) at Iran University of Science and Technology

Previous studies related to the blood supply chain under blockchain technology have concentrated solely on the managerial role of blockchain technology in this chain, and no systematic examination has been conducted using quantitative modeling methods. This study focuses on developing a blood supply chain based on blockchain technology using a simu...

The growing global population and reduced blood donations due to COVID-19 necessitate efficient management and pricing strategies for red blood cells (RBCs). Pricing mechanisms must address the perishable nature of RBCs and supply–demand uncertainties to minimize wastage. Government intervention in blood donation and healthcare costs further emphas...

Biofuel has gained significant attention as a potential source to meet fuel demands instead of fossil fuel. The price of biofuel and alternative fuel have a considerable impact on biofuel demand. Thus, it is important to design a biofuel supply chain network that incorporates the biofuel price into an elastic demand. More precisely, a variable dema...

The responsibility of Logistics Companies (LCs) extends beyond simply handling logistical processes and choosing transportation routes; they focus on being competitive and efficient in their operations. In multiple origins and destinations networks, LCs attempt to select the most optimal routes from each point. To address this challenge and reduce...

The increasing international maritime transportation of freight has caused a huge operation in important ports, which are often established near cities and therefore do not have enough room for expanding the operations. This causes long delays and poor productivity in ports. The construction of dry ports has been proposed as a suitable solution to...

Determining effective policies to boost demand in each phase of the product life cycle (PLC) holds paramount importance for every supply chain member, profoundly influencing decision-making at each stage. This paper delves into the dynamic nature of the PLC, considering the distinct characteristics of each phase. Through an exploration of a differe...

Construction project-oriented companies face numerous challenges, including resource constraints, efficient network design for material delivery, an uncertain nature of decision making, and the increasing importance of environmental issues. This paper proposes a multi-objective mixed-integer mathematical model for the optimal management of a constr...

For transporting cargo from an origin to a destination, there are several routes with various transport modes, but in practice, only one route should be selected. In this regard, one of the main activities of Logistics Companies (LCs) is to select an optimal route for transporting freight. This complexity intensifies in periodic transport across mu...

Due to ongoing economic and business changes and intense competition in the vehicle industry, the market potential for vehicle demand remains uncertain. This introduces a decision-making risk for parts of the vehicle and petrol supply chains. The present study aimed to explore how decisions in these supply chains, influenced by sustainability and r...

Today, managing the drinking water supply chain and its pricing have gained significant importance. This paper presents a mathematical model using game theory for the pricing of drinking water in the competitive environment comprising a Public Water System (PWS) and a Bottled Water Plant (BWP) under government intervention. This study investigates...

In the contemporary era, renewable energy sources are employed globally. Their uncertain and intermittent nature conduce to a hybrid system that fully meets the electricity demand. This paper proposes a three-echelon hybrid (solar-wind) supply chain with government intervention and considers two approaches: (1) The decentralized model (non-cooperat...

When should manufacturers and retailers change their prices? Should they change prices based on the phases of the product life cycle (PLC) that are affected by advertising or without its effect? To answer these questions, we develop dynamic models for analyzing market demand, pricing decisions, and advertising cost according to the properties of PL...

In recent years, due to economic considerations, increasing environmental concerns, customer expectations, government regulations, and global awareness of the limitations of natural resources, reverse logistics and closed-loop supply chains have garnered significant attention. Additionally, perishable products, due to their limited allowable storag...

Continuous changes in today’s market have exposed supply chain (SC) management to severe challenges. Such changes in the market are divided into two general categories: (1) Time-dependent changes such as political, economic, and cultural changes occurring over time and require decision-makers to consider the dynamics of decisions; and (2) Sudden ch...

The coronavirus pandemic has affected most aspects of product supply and consumer behaviors and led to transformations in the supply chain. The COVID-19 pandemic and the requirements to reduce its prevalence have led many people to shop online and encouraged many manufacturers to sell their products online. In this study, a manufacturer, who intend...

Due to leachate contamination in groundwater and also soil, global concerns about improper waste management are today raising. On the other hand, with the emergence of the circular economy, increasing the recycling rate, reducing the landfilling rate, and producing by-products such as energy and compost from waste have become particularly important...

During the coronavirus epidemic, food supply chains have been affected by disruptions of this epidemic. Having an overview and considering food-related factors such as energy, waste, and water make the design of the supply chain more effective. In this study, a multi-objective model for a sustainable food supply chain is presented based on the prev...

Hematopoietic stem cell transplantation is a usual treatment used against cancers and blood diseases. To diminish the incidence and severity of graft-versus-host disease, donors and recipients should be sufficiently matched in terms of human leukocyte antigen. Iranians’ stem cell bank was established to help patients search for their compatible don...

Over the past few decades, inefficient waste management has caused environmental problems, such as leachate leakage, high pollution in the surface and groundwater, and soil contamination. In this regard, it is essential to adopt proper pre-discharge leachate management and treatment in the case of municipal waste. This study proposes a novel sustai...

Nowadays, due to the continuous changes in the economic and political conditions, the nature of the decisions in the automotive and fuel industries has become dynamic and stochastic. In the case of decision-making under dynamic and stochastic conditions, the goals of supply chain members may be in conflict with each other. Furthermore, according to...

This study examines a mobile phone network in three models: (1) mobile network model: one mobile operator, one mobile phone manufacturer, and one mobile application developer, (2) mobile network model with application competition: one mobile operator, one mobile phone manufacturer, and two mobile application developers, (3) mobile network model wit...

Current research concentrates primarily on the effect of the organic level on the deterioration rate of products over a two-echelon food supply chain with two manufacturers and a retailer. One of the manufacturers produces organic products (OP), which is called the organic manufacturer (OM), and the other one produces non-organic products (NOP) wit...

Nowadays, due to the lack of energy and the harmful effects of fossil fuels on the environment, many countries seek to use renewable sources such as solar energy, a clean and free energy source. Direct conversion of solar energy into electricity is the reason for using solar cells. This paper proposes a three-echelon photovoltaic supply chain with...

Due to the destructive effects of fossil fuels on the environment, using renewable energies has nowadays been suggested. In addition, because of the increased use of solar energy and the prevention the solar cell supply chain (SCSC), this chain is mainly supported by government funding. In this study, we mathematically model both supply-side and de...

بحران کووید 19 پیش از هر چیز، تهدیدی برای سلامت عمومی شناخته می‌شد، اما رفته رفته تبدیل به یک تهدید در بخش‌های مختلف شده است. یکی از بخش‌هایی که در این پژوهش به بررسی اثرات کووید 19 در آن پرداخته شده است، بخش محیط‌زیستی در شهرهای ساحلی استان سیستان و بلوچستان است که از جمله خطراتی که این نقاط را تهدید می‌کند، متنوع‌ و بسیاری از آن‌ها منشأ محیط‌زیست...

Economic development and rising urbanization rates have generated large amounts of municipal solid waste (MSW). Also, over the past few decades, inefficient waste management has brought about environmental problems, such as greenhouse gas emissions, leading to significant global warming and other climate-related changes. To this end, the current ca...

Decision-making is one of the significant and inevitable issues in the most real-world problems. Decision criteria interact in many of these problems, and traditional aggregation techniques, which are usually linear methods, cannot be exploited to consider these interactions and exert correlations between criteria. In such cases, nonadditive aggreg...

In the digital world today, cellular networks and their operators play a competitive and important role in communications. The bases of the competition of operators are the quality of provided services and the coverage level of their antennas, thereby attract customers. This paper studies cellular networks with two old and new operators and under t...

“Product life-cycle management” and “supply chain coordination” are integral concepts in today's competitive business environment, each of which alone is of particular importance in the literature. However, the coordination process of channels with short and long life-cycles may require distinct approaches in practice. This study surveys the coordi...

This paper considers a two-echelon green supply chain (SC) with one manufacturer that sells a same product to two retailers. There is also an environment-conscious government (Govt.) who intends to cooperate with the manufacturer and increase the level of the greenness of the products. We introduce a novel concept in the green literature which is t...

Due to the development of various industries, including electronic products industries, waste management of these products in order to reduce serious damages into the environment has been considered by human societies. On the other hand, due to the fact that a high percentage of the waste of these products have capability to use for production of n...

Transportation is one of the most influential factors in greenhouse gas emissions and global warming. This paper studies a network with an automotive supply chain that includes one supplier and one manufacturer next to a fuel supply chain consisting of a fuel manufacturer, operating under government intervention. The car manufacturer sells its gree...

In the digital world today, cellular networks and their operators play a competitive and important role in communications. The basis of the competition of operators, the quality of provided services, and the coverage level of their antennas, thereby attract customers. This paper studies cellular networks with two old and new operators and under the...

The critical role of supply chain security for businesses and government agencies has resulted in significant efforts over the last two decades to reduce vulnerability or disruption in supply chains. This paper addresses the routing problem of security carriers for high-value shipment transportation by developing a rich variant of the vehicle routi...

The production and transportation of chemicals is a risky process with high-cost operations for members of the supply chain, where some of the materials deteriorate over time and deal with value-reduction challenges. This paper studies a two-stage hazardous chemicals supply chain with a supplier and a manufacturer in a finite time horizon with a co...

This paper investigates a dual-channel supply chain (SC) composed of a manufacturer and retailer in which the manufacturer confronts random yield issues. Since supply uncertainty may lead to a production shortage, the manufacturer faces the problem of allocating the products to traditional/online channels. To address this problem, a novel product-a...

This paper addresses the transportation of valuable goods in which security carriers are interested to optimize the operating costs and security of vehicle routes. In real operations, route planning and scheduling are normally performed manually based on individual experience. Hereupon, an optimizing approach should be developed to target the reduc...

The proper location of facilities /service providers is of paramount importance in the business success of several economy sectors for the sake of its effects on the service demand and hence on the market share. A vital problem resulted from modernization, urbanization, and globalization is the reconfiguration of branch locations and service capabi...

Due to the dynamic nature of product life-cycle (PLC) and exclusive features of different phases, operational and long-term decisions such as supply chain coordination (SCC) may encounter some challenges. However, no studies have been done so far to evaluate the life-cycle impacts on SCC. In this regard, this paper studies a coordination approach i...

Due to the growing concerns about the increasing release of consumer products to the environment, especially for defective electronic products, the management of the closed-loop supply chain (CLSC) is emerging. To do this, a chain consisting of a manufacturer, a retailer, and a collector is offered in a manufacturer-led Stackelberg game. Due to the...

Managing platelets supply chain network has proved challenging. Besides stochastic demand, the high perishability of platelets and the diversity of their demands make the management more intricate. As a motivation to conduct this paper, we investigate a real-world case study facing a variety of platelet demands to satisfy. Being the first-ever stud...

Nowadays, to avoid further damage to the environment and supply the raw materials from the used solar cells, some countries are trying to recycle the used solar systems. In this paper, we develop a three-echelon closed-loop solar cell supply chain (CLSCSC) including a supplier, a third-party logistics (3PL), and an assembler considering two kinds o...

Technology commercialization needs a large amount of financial resources and governments in developed and developing countries play a critical role in resource allocation to the technology commercialization, especially through “Technology Development Funds (TDFs)”. But, because of resource limitations, determining high priority technologies with hi...

The existence of numerous social, economic, and environmental problems and the need to improve the long-term performance in organizations have led the supply chain designs toward sustainable designs. On the other hand, due to the emersion of new technologies and the creation of new business models, the increase of competition level among retailers...

With respect to limited financial resources, prioritization of technology fields in order to be supported financially is a matter of paramount significance that governmental organizations, such as “Technology Development Funds (TDFs)”, face with. Innovation and technology development, as the cornerstone of the economic development of countries, req...

According to the high sugar and oil content of algae, the algal biofuel have been taken into consideration in recent years. This paper develops a multi-objective mixed integer quadratic programming (MMIQP) model to optimize the design and planning of an algae-based biofuel supply chain network under environmental and economic objectives. The goals...

Since the only source of supplying platelets is available donors, evaluating donors’ treatments plays a vital role in the supply chain. According to the investigation of a real study, four main issues have directly affect the quantity of platelet donation in the supply chain, namely, (1) different types of donors as first-time secondary polycythemi...

In this paper, an inventory model for deterioration items in a two-echelon supply chain including one retailer and one manufacturer is proposed by considering the stock and price dependent demand and capacity constraint for holding inventories. First, the model is presented as a leader-follower game in which the manufacturer announces wholesale pri...

Microalgae is one of the most promising feedstocks for biofuel production because it yields the high content of sugar and oil. In order to help to develop this nascent industry, this paper proposes a mixed integer linear programming (MILP) model for planning and designing a microalgae-based biobutanol supply chain network. The goal of this study is...

Improving greening activities in manufacturing firms plays a major role in decreasing hazardous environmental impacts of the products and increasing social welfare (SW). This article considers a dyadic online to offline (O2O) closed loop supply chain (CLSC) composed of a manufacturer and a retailer for trading a single green product. Market demand...

In humanitarian relief logistics, providing a safe place for evacuees, supplying relief commodities and designing a proper telecommunication infrastructure, for fast communications during disaster, are important issues. Therefore, in this paper, we develop a fuzzy scenario-based optimization model concerning location of shelters, relief distributio...

In this paper, a solar cell supply chain (SCSC) is modeled in which domestic and foreign suppliers compete with each other on the efficiency influencing the final price of solar cells. Since the SCSC is in the developing stage, it needs to be supported by governments to encourage cooperation among the members of SCSC. One of the most common governm...

Demand uncertainty coupled with the short lifespan of itemized platelets has caused a significant shortage at public therapeutic centers. In this regard, this paper presents a multi-objective robust stochastic mixed integer linear programming model for an integrated platelet supply chain considering unidirectional lateral transshipment between hosp...

The low quality of work packages is one of the reasons for the failure of projects and leads to losses such as increasing the costs, projects’ delay and even bankruptcy of the projects’ contractors. One strategy for avoiding these losses is the investment in the quality of projects. In this paper, we model the dynamic nature of the investment in th...

Unlike the extensive inventory models for both ameliorating and deteriorating items, incorporating some specific features of these products have mostly been neglected. To fill this research gap, providing an appropriate mathematical inventory model for both ameliorating and deteriorating items is of paramount importance. In this regard, this paper...

In projects carried out as joint venture (JV), two or more legally independent firms form a strategic alliance to do a project cooperatively and to obtain the necessary credits asked by a contractor. Due to the wide scope of a joint venture project, partners are sometimes from different areas industrial fields or even different countries which migh...

In humanitarian relief operations (HRO), due to the excessive number of relief organizations, multiple organizational coordination is a demanding and complicated task. Considering such a problem, this paper proposes a two-phase mechanism to coordinate multiple heterogeneous relief organizations in a decentralized HRO logistics network. To address s...

Drug has a great and crucial role in both the health systems and the quality of life, and therefore its shortage can cause great damages. In order to the important role of drugs, pharmaceutical supply chain (PSC) should ensure that drugs are delivered to people in the right time with the best quality. The supply chain (SC) members have a great depe...

For provision of platelets in humanitarian relief operations, due to the excessive number of non-coordinated organizations, relief response times and corresponding costs of platelets sharply increase. This paper proposes a two-phase mechanism to coordinate two heterogeneous relief organizations (i.e., relief and rescue organization of Red Crescent...

This paper analyzes Flexible and Robust Inventory-Routing (FRIR) where a blood center distributes the blood type of red blood cell to hospitals under uncertain demand and supply. Flexibility is added through the possibility of transshipment and substitution to avoid shortage. An efficient solution method is proposed and shown to be more effective t...

Vehicle Routing Problem (VRP) is addressed to a class of problems for determining a set of vehicle routes, in which each vehicle departs from a given depot, serves a given set of customers, and returns back to the same depot. On the other hand, simultaneous delivery and pickup problems have drawn much attention in the past few years due to its high...

This paper investigates the configuration of a closed-loop supply chain (CLSC) network, which involves suppliers, a single manufacturer, customers, collection/disassembly centers, disposal centers, a single recovery center and subcontractors. Due to the importance of green issues in the proposed supply chain, the efforts mainly focus on the suitabl...

Enterprise resources planning (ERP) systems attract many attentions from industry sector because of their ability to facilitate and integrate the enterprise operations. However, many expenses accompany the implementation of these systems and consecutive changes which doing a precise and comprehensive performance evaluation a necessary part of this...

Locations of distribution centers and allocation of affected people to these centers, are very important in emergency management, because they will cause to reduce the time of relief and decrease damages caused by the crisis. This paper was developed a multi-objective model of Locations for distribution centers that its objectives minimize total co...

This paper develops a pricing and inventory model of a supply chain composing one supplier and two manufacturers in which the supplier sells its product to two competing manufacturers. Each manufacturer faces a deterministic demand that depends on his/her own and the other competitor sale price. Selling price for the supplier is time dependent and...

In the event of a disaster such as natural and human-made, high demand for medical supplies and a large number of injured people will emerge at the affected areas in a short time period. Rapid distribution of medical supplies and the speed of transferring injured to the hospital play an important role in assuring the effectiveness and efficiency of...

In this paper, we propose a fuzzy green vehicle routing problem with simultaneous pickup and delivery and time windows (F-GVRP-SPDTW), in which the amounts of fuel consumption and emission are estimated by a comprehensive modal emission model. A mixed integer nonlinear programming model is proposed to minimize the cost of fuel consumption and emiss...

Reliable location routing problem considers a location problem and a vehicle routing problem in order to select the optimal location of facilities and at the same time the optimal routes for vehicles considering the unexpected failure for facilities in which, all facilities may fail with a probability. In this paper, a bi-objective mathematical mod...

Reliable location routing problem considers a location problem and a vehicle routing problem in order to select the optimal location of facilities and at the same time the optimal routes for vehicles considering the unexpected failure for facilities in which, all facilities may fail with a probability. In this paper, a bi-objective mathematical mod...

In this paper, we propose a fuzzy green vehicle routing problem with simultaneous pickup and delivery and time windows (F-GVRP-SPDTW), in which the amounts of fuel consumption and emission are estimated by a comprehensive modal emission model. A mixed integer nonlinear programming model is proposed to minimize the cost of fuel consumption and emiss...

One of the primary assumptions in many project portfolio selection is the availability of all parameters. However, in real-world cases, many parameters are under uncertainty and the exact values are unknown in advance. This paper presents a scenario based mathematical model for project portfolio selection when parameters are under uncertainty. The...

In this paper, the resource allocation problem in multi-class dynamic PERT networks with finite capacity of concurrent projects (COnstant Number of Projects In Process (CONPIP)) is studied. The dynamic PERT network is modeled as a queuing network, where new projects from different classes (types) are generated according to independent Poisson proce...

Facility location problem of distribution systems, as one of the important and strategic issues in supply chain management, has been studied in a three-level supply chain under stochastic condition and two stages. In this paper a mathematic programming model has been proposed for the two-stage location-allocation problem of distribution systems wit...

According to Maslow's hierarchy of needs pyramid, the need for health, water, food and other critical needs introduced that has Individual aspects. Also since man is a social person, the need for security is a one of the basic human needs that deserves also considered in all of the disaster management planning. Thus, in this paper, hospitals as an...

Occurrence of natural disaster inflicts irreparable injuries and symptoms on humans. In such conditions, affected people are waiting for medical services and relief commodities. Thus, quick reaction of medical services and relief commodities supply play important roles in improving natural disaster management. In this paper, a multi-objective non-l...

This paper highlights the uncertainty of business environments, specifically the pharmaceutical industry. Most of the time, these uncertainties result in sharp fluctuations in some parameters (e.g. cost, demand, distance and lead-time) of the related problems. However, typically some of the related parameters are assumed deterministic by most of th...

This chapter develops a Markovian multi-objective mathematical programming model for the resource allocation problem in dynamic PERT networks with a finite capacity of concurrent projects. It is assumed that new projects are generated according to a Poisson process and activity durations are independent random variables with exponential distributio...

Control and feedback in complex and sensitive systems with different resources and properties in uncertainty conditions are one of the significant challenges for project managers. Therefore, in this paper, an integrated model with quantitative and qualitative approach based on earned value management and risk analysis methods proposed to decrease d...

This article models a multi-stage assembly system with finite capacity as an open queueing network using continuous-time Markov process. We also propose a multi-objective model with three conflicting objectives to optimally control the service rates, and apply the goal attainment method to solve a discrete-time approximation of the original multi-o...

This paper develops a new multi-objective hybrid flexible flowshop problem with some useful constraints including of the limited waiting times (LWT) between every two successive operations, unrelated parallel machines at least one stage, sequence- and machine-dependent set-up times and due dates of jobs. A mathematical model for this problem as a m...

Earned Value Management (EVM) is a well-known approach in project management related researches. The standard EVM, however, lacks some features, which needs further improvement in order to make it a more efficient and reliable technique. This paper primarily concentrates on the financial aspects of a cost control system, such as time value of money...

Earned Value Management (EVM) is a well-known approach in project management related researches. The standard EVM, however, lacks some features, which needs further improvement in order to make it a more efficient and reliable technique. This paper primarily concentrates on the financial aspects of a cost control system, such as time value of money...

Control in complex systems in uncertainty conditions is one of the significant challenges for project managers. Therefore, in this paper an integrated approach based on Earned value management and risk analysis methods proposed to decrease deviations in time and cost estimation at complete. Using the proposed performance indexes based on risk score...

In this paper, we attempt to present a constant due-date assignment policy in a multi-server multi-stage assembly system. This system is modelled as a queuing network, where new product orders are entered into the system according to a Poisson process. It is assumed that only one type of product is produced by the production system and multi-server...

This investigation presents a heuristic method for consumable resource allocation problem in multi-class dynamic Project Evaluation and Review Technique (PERT) networks, where new projects from different classes (types) arrive to system according to independent Poisson processes with different arrival rates. Each activity of any project is operated...

This article models the resource allocation problem in dynamic PERT networks with finite capacity of concurrent projects (COnstant Number of Projects In Process (CONPIP)), where activity durations are independent random variables with exponential distributions, and the new projects are generated according to a Poisson process. The system is represe...