Coordinating pricing and periodic review replenishment decisions in a two-echelon supply chain using quantity discount contract

M. Johari; S.M. Hosseini Motlagh; M.R. Nematollahi

Volume 3, Issue 2 , December 2016, , Pages 58-87

Abstract
  In this paper, the coordination of pricing and periodic review inventory decisions in a supplier-retailer supply chain (SC) is proposed. In the investigated SC, the retailer faces a stochastic price dependent demand and determines the review period, order-up-to-level, and retail price. On the other hand, ...  Read More

Modified Pareto archived evolution strategy for the multi-skill project scheduling problem with generalized precedence relations

Amir Hossein Hosseinian; Vahid Bardaran

Volume 7, Issue 1 , June 2020, , Pages 59-86

https://doi.org/10.22116/jiems.2020.110007

Abstract
  In this research, we study the multi-skill resource-constrained project scheduling problem, where there are generalized precedence relations between project activities. Workforces are able to perform one or several skills, and their efficiency improves by repeating their skills. For this problem, a mathematical ...  Read More

Solving a robust capacitated arc routing problem using a hybrid simulated annealing algorithm: A waste collection application

E. Babaee Tirkolaee; M. Alinaghian; M. Bakhshi Sasi; M. M. Seyyed Esfahani

Volume 3, Issue 1 , June 2016, , Pages 61-76

Abstract
  The urban waste collection is one of the major municipal activities that involves large expenditures and difficult operational problems. Also, waste collection and disposal have high expenses such as investment cost (i.e. vehicles fleet) and high operational cost (i.e. fuel, maintenance). In fact, making ...  Read More

Identifying and ranking effective lean production factors on economic performance of production companies in Mazandaran province of Iran based on FDANP approach

Mohammad Ehsanifar; Nima Hamta; Fariba EsmaeilZadeh

Volume 6, Issue 2 , December 2019, , Pages 65-77

https://doi.org/10.22116/jiems.2019.92258

Abstract
  This paper identified and ranked the lean product factors effecting economic function of production companies in Mazandaran province. 24 sub-factors and five main factors were categorized including supplier management, purchase and provision system, human resource organization, organizing, leadership, ...  Read More

Developing customer relationship management (CRM) processes using standard frameworks and MCDM techniques

Saeid Emamgholizadeh; Ahmad Jafarzadeh Afshari; Maryam Shabani Bahmand

Volume 5, Issue 1 , June 2018, , Pages 66-84

https://doi.org/10.22116/jiems.2018.66505

Abstract
  Organizations have found that functional approach to business destroys flexibility and agility by gaining experience over the time. The main weakness with Task-based organizations is that they can hardly act flexibly and adapt themselves to the changing environment. In today’s' dynamic and competitive ...  Read More

Designing a strategic financial framework for digital start-ups

Ali Eslamibidkoli; Mohammad Reza Sadeghi Moghadam; Tahmurath Hasangholipour

Volume 10, Issue 1 , July 2023, , Pages 67-76

Abstract
  Emerging companies or start-ups are growing rapidly and their number is increasing every day so that the number of knowledge-based and start-up companies in Iran has increased from about 55 companies in 2013 to more than 5965 companies in 2021. The capital element is the main and most productive factor ...  Read More

Developing revised Fama-French Five-Factor models by including dividend rate, cash holdings, and Free cash flow to equity: evidence of Tehran stock exchange

Shahla Rowshandel; Ali Asghar Anvary Rostamy; Iraj Noravesh; Roya Darabi

Volume 6, Issue 1 , June 2019, , Pages 68-78

https://doi.org/10.22116/jiems.2019.87658

Abstract
  Prediction of stock returns has always been one of the most important issues in finance. Investors have attracted to use of Fama-French Five-Factor Model (FFFFM) as one of the powerful methods for pricing financial assets and predicting the stock returns. This research investigates the predictability ...  Read More

Identifying and classifying the factors affecting risk in automobile hull insurance in Iran using fuzzy Delphi method and factor analysis

Zahra Shams Esfandabadi; Mir Mehdi Seyyed Esfahani

Volume 5, Issue 2 , December 2018, , Pages 84-96

https://doi.org/10.22116/jiems.2018.80686

Abstract
  Automobile hull insurance has attracted much attention due to the high rate of vehicle applications in daily lives. Since purchasing these policies is optional in Iran and their premium rates are set competitively, a competition is formed among the insurance companies for attracting low risk drivers. ...  Read More

A mixed integer linear programming formulation for a multi-stage, multi-Product, multi-vehicle aggregate production-distribution planning problem

H. Mokhtari

Volume 2, Issue 2 , December 2015, , Pages 55-82

Abstract
  In today’s competitive market place, companies seek an efficient structure of supply chain so as to provide customers with highest value and achieve competitive advantage. This requires a broader perspective than just the borders of an individual company during a supply chain. This paper investigates ...  Read More

An inventory model for non-instantaneous deteriorating items with imperfect quality, delay in payments and time value money

M. Mahmoudinezhad; M. Ghoreishi; A. Mirzazadeh; A. Ghodratnama

Volume 1, Issue 1 , November 2014, , Pages 58-71

Abstract
  In this paper, Economic Order Quantity ( ) based model for non-instantaneous deteriorating items with imperfect quality, permissible delay in payments and inflation is proposed. We adopt a time-dependent demand function. Also, the effects of time value of money are studied using the Discounted Cash Flow ...  Read More

Virtual manufacturing cells scheduling considering lotstreaming and sequence dependent setup times

A. Ayooq; A. Alem Tabriz; A. Javani

Volume 2, Issue 1 , June 2015, , Pages 61-73

Abstract
  In this paper, a new mathematical model for the problem of job scheduling in virtual manufacturing cells (VMC) is presented to minimizing the completion time of all jobs. Sequence dependent setup times of machines is considered and lot-streaming is possible. In Virtual manufacturing cells, ...  Read More

A discrete-event optimization framework for mixed-speed train timetabling problem

Seyyed Akbar Gholamian

Volume 4, Issue 2 , December 2017, , Pages 64-84

https://doi.org/10.22116/jiems.2017.54607

Abstract
  Railway scheduling is a complex task of rail operators that involves the generation of a conflict-free train timetable. This paper presents a discrete-event simulation-based optimization approach for solving the train timetabling problem to minimize total weighted unplanned stop time in a hybrid single ...  Read More

Evaluation of green supply chain performance using balanced scorecard and data envelopment analysis

Fatemeh Amirbeygi; Seyyed Hosein Seyyed Esfahani; Behrooz Khorshidvand

Volume 9, Issue 2 , December 2022, , Pages 64-85

https://doi.org/10.22116/jiems.2022.348723.1494

Abstract
  Environmental pollution and the deterioration of natural resources are now considered significant challenges in human societies. In fact, environmental pollution is mainly caused by manufacturing industries. Most industries (e.g., the cement industry) employ the green supply chain to overcome ecological ...  Read More

Integrated modeling and solving the resource allocation problem and task scheduling in the cloud computing environment

Maryam Shams; Ahmad Jafarzadeh Afshari; Amir Khakbaz

Volume 4, Issue 1 , June 2017, , Pages 69-89

https://doi.org/10.22116/jiems.2017.51964

Abstract
  Cloud computing is considered to be a new service provider technology for users and businesses. However, the cloud environment is facing a number of challenges. Resource allocation in a way that is optimum for users and cloud providers is difficult because of lack of data sharing between them. On the ...  Read More

A stochastic model for project selection and scheduling problem

F. Molavi; E. Rezaee Nik

Volume 3, Issue 1 , June 2016, , Pages 77-88

Abstract
  Resource limitation in zero time may cause to some profitable projects not to be selected in project selection problem, thus simultaneous project portfolio selection and scheduling problem has received significant attention. In this study, budget, investment costs and earnings are considered to be stochastic. ...  Read More

A bi-objective model for the firefighter problem to maximize fire protection with minimum firefighters

Shaaban ALI Hoseinpour; Behrouz Afshar Nadjafi; Seyed Taghi Akhavan Niaki

Volume 10, Issue 1 , July 2023, , Pages 77-87

Abstract
  The firefighter problem on a graph, depending on the environment, the graph can be continuous or discrete, which includes tree, cubic, regular and irregular graphs, etc., is described in such a way that by starting a fire from a series of vertices, the goal is to contain the fire with the maximum number ...  Read More

A new approach for solving fuzzy multi-objective quadratic programming of water resource allocation problem

Hadi Nasseri; Abdollah Baghban; Iraj Mahdavi

Volume 6, Issue 2 , December 2019, , Pages 78-102

https://doi.org/10.22116/jiems.2019.92259

Abstract
  This paper describes an application of fuzzy multi-objective quadratic model with flexible constraints for optimal allocation of limited available water resources among different water-user sectors. Due to the fact that, water resource allocation problem is one of the practical and essential subjects ...  Read More

A cost sharing-based coordination mechanism for multiple deteriorating items in a one manufacture-one retailer supply chain

Mojtaba Arab Momeni; Saeed Yaghoubi; Mohammad Reza Mohammad Aliha

Volume 6, Issue 1 , June 2019, , Pages 79-110

https://doi.org/10.22116/jiems.2019.87661

Abstract
  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 ...  Read More

A statistical analysis framework for bus reliability evaluation based on AVL data: A case study of Qazvin, Iran

Amir Albadvi; Hossein Hashemi; Mohammad Reza Amin-Naseri; Babak Teimourpour

Volume 5, Issue 1 , June 2018, , Pages 85-105

https://doi.org/10.22116/jiems.2018.66506

Abstract
  Reliability is a fundamental factor in the operation of bus transportation systems for the reason that it signifies a straight indicator of the quality of service and operator’s costs. Todays, the application of GPS technology in bus systems provides big data availability, though it brings the ...  Read More

Simulation based optimization of multi-product supply chain under a JIT system

Arman Sajedinejad; Erfan Hassannayebi; Mohammad Saviz Asadi Lari

Volume 7, Issue 1 , June 2020, , Pages 87-106

https://doi.org/10.22116/jiems.2020.110009

Abstract
   It is scientifically challenging to determine the inventory level all through the supply chain in such a way that the desired objectives such as effectiveness and responsiveness of the supply chain system can be obtained. Simulation is a means for solving various problems which cannot be solved ...  Read More

Designing a New Multi-objective Model for a Forward/Reverse Logistic Network Considering Customer Responsiveness and Quality Level

A. Yaghoubi; M. Asghari

Volume 3, Issue 2 , December 2016, , Pages 88-106

Abstract
  In today’s competitive world, the need to supply chain management (SCM) is more than ever. Since the purpose of logistic problems is minimizing the costs of organization to create favorable time and place for the products, SCM seek to create competitive advantage for their organizations and increase ...  Read More

Investigation of the two-machine flow shop scheduling problem to minimize total energy costs with time-dependent energy prices

Amir Ebrahimzadeh Pilerood; Mehdi Heydari; Mohammad Mahdavi Mazdeh

Volume 5, Issue 2 , December 2018, , Pages 97-112

https://doi.org/10.22116/jiems.2018.80687

Abstract
  In this paper, the problem of two-machine flow shop scheduling to minimize total energy costs under time-of-use tariffs is investigated. As the objective function of this study is not a regular measure, allowing intentional idle-time can be advantageous. So this study considers two approaches, one for ...  Read More

The optimal age-based replacement policy for systems subject to shocks

Behrouz Khorshidvand; Ashkan Ayough; Akbar Alem Tabriz

Volume 1, Issue 1 , November 2014, , Pages 72-82

Abstract
  In this article, two different systems subject to shocks occurring based on a non-homogeneous Poisson process (NHPP) are analyzed. Type –I system is consisted of a single unit and type –II system is consisted of two parallel units in which both units operate identically and simultaneously. ...  Read More

Designing Effective Strategies to Improve Performance Indicators of Bread Industry Using System Dynamics: A case study in Iran

Z. Arastia; T.H. Hejazi; Z. Geilari

Volume 2, Issue 1 , June 2015, , Pages 74-94

Abstract
  Iranian bread production methods are often unsanitary, in the last decades, different attempts were made to mechanize production of Iranian breads, but a few of them, due to a variety of factors, could succeed. The aim of this study is to examine various factors affecting the system of bread production ...  Read More

The competitive advantages analysis of pharmaceutical industry strategic behaviors by game theory

S.H. Seyyed Esfahani; E. Asgharizadeh; GH. Abdoli; B. Dorri

Volume 2, Issue 2 , December 2015, , Pages 83-95

Abstract
  Game theory is the study of mathematical models and cooperation between intelligent rational decision-makers. This paper provides a flexible model to calculate pay-off matrix based on several importance factors. This model is adapted by cooperative game and developed for some competitive advantages ...  Read More