Research Paper Transportation
A variable service rate queue model for hub median problem

Sarow Saeedi; Omid Poursabzi; Zaniar Ardalan; Sajad Karimi

Volume 10, Issue 2 , June 2023, Pages 155-166

  Hub location problems (HLP) have multiple applications in logistic systems, the airways industry, supply chain network design, and telecommunication. In the HLP, the selected nodes as hubs perform the principal role in processing the inflow arising from other nodes. So, congestion would be inevitable ...  Read More

Research Paper Supply chain management
Pricing under the policy of guaranteeing the return of money in a two-channel supply chain using the game theory approach (Case study: Lorestan Food Industry Company)

Mona Beiranvand; Sayyed Mohammad Reza Davoodi

Volume 10, Issue 2 , June 2023, Pages 167-185

  Today, one of the topics in supply chain management is "multiple sales channels" and "pricing". In this research, a food producer (west Sahar Dasht Company) has been selected, and several retailers and wholesalers have been considered as the company's customers. This research dynamically solves the model ...  Read More

Research Paper Case studies in industry and services
Implementation of lean six sigma methodology in a refractory company

Ayyappan Solaiyappan

Volume 10, Issue 2 , June 2023, Pages 186-195

  To enhance the manufacturing process capability of a refractory company, the scope for implementing the Lean Six Sigma (LSS) methodology is analyzed in this work. The DMAIC methodology of Six Sigma is used in this project to determine the Critical to Quality Characteristics (CTQs), defining the possible ...  Read More

Research Paper Human factors, ergonomics, and safety
Assessment of passenger’s safety implementation in water transportation. a case study of Kurutie, Okerenkoko and Escravos waterways

Silas Oseme Okuma; Akpofure Avwerosuoghene Enughwure

Volume 10, Issue 2 , June 2023, Pages 196-202

  The purpose of this research is to investigate the safety of inland waterway transportation in Kurutie, Okerenkoko, and Escravos River, Nigeria. The study used a cross-sectional research design, and the study's target group includes passengers who are technical experts, maritime workers, non-academic, ...  Read More

Research Paper Decision analysis and methods
A modification of technique for order preference by similarity to ideal solution (TOPSIS) through fuzzy similarity method (a numerical example of the personnel selection)

Elham Ebrahimi; Mohammad Reza Fathi; Seyed Mohammad Sobhani

Volume 10, Issue 2 , June 2023, Pages 203-217

  Multiple criteria decision-making (MCDM) is well known nowadays as a methodology in which a set of techniques are integrated to evaluate a set of alternatives with specified criteria for the purpose of selecting or ranking. The Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) is ...  Read More

Research Paper Case studies in industry and services
A new method to predict the quality of umbilical cord blood units based on maternal and neonatal factors and collection techniques

Rasoul Jamshidi; Sattar Rajabpour Sanati; Morteza Zarrabi

Volume 10, Issue 2 , June 2023, Pages 218-237

  The saving banks of “umbilical cord blood stem cells” are considered as strategic health-based institutions in most countries. Due to the limited capacity of cord blood sample storage tanks, the samples should be evaluated according to their quality. So these banks need a method to assess ...  Read More

Research Paper Management and Entrepreneurship
Evaluation of the influential factors in human resource development in state-owned enterprises using a mixed method

Abbas Heravi; Afsaneh Zamani Moghadam; Seyed Ahmad Hashemi; Younos Vakil Alroaia; Abddulah Sajadi Jagharg

Volume 10, Issue 2 , June 2023, Pages 238-255

  Given the increased competition and turbulence in business environments, the proper management of human resources and employee growth is a significant challenge faced by organizations to achieve competitive advantage. The present study aimed to analyze the influential factors in human resource development ...  Read More

Research Paper Engineering Modeling
A reliable and sustainable design of supply chain in healthcare under uncertainty regarding environmental impacts

Reza Eslamipoor; Arash Nobari

Volume 10, Issue 2 , June 2023, Pages 256-272

  Nowadays, designing a reliable network for blood supply chains by which most blood demands can be supplied is an important problem in the health care systems. In this paper, a multi-objective model is provided to create a sustainable blood supply chain, which contains multiple donors, collection centers, ...  Read More

Research Paper Case studies in industry and services
Robust optimization model to improve supply chain network ‎productivity under uncertainty

Seyed Farid Mousavi; Arash Apornak; Mohammadreza Pourhassan

Volume 10, Issue 2 , June 2023, Pages 273-285

  Although the importance of supply chain agility considering the necessity of speed of action, ‎response to customers, progressive changes in the market, consumers’ needs, etc. in many ‎industries is clear both scientifically and experimentally, today organizations have found that the ‎benefit ...  Read More

Review Paper Heuristics and Metaheuristics Algorithms
Nature-inspired metaheuristic algorithms: literature review and presenting a novel classification

Mehdi Khadem; Abbas Toloie Eshlaghy; Kiamars Fathi

Volume 10, Issue 2 , June 2023, Pages 286-339

  Over the past decade, solving complex optimization problems with metaheuristic algorithms has attracted many experts and researchers.There are exact methods and approximate methods to solve optimization problems. Nature has always been a model for humans to draw the best mechanisms and the best engineering ...  Read More