Research Paper Performance evaluation and benchmarking
Analysis of TQM implementations in the floor tiles industry

Tri Ngudi Wiyatno; Atty Tri Juniarti; Iman Sudirman

Volume 10, Issue 3 , July 2023, Pages 340-349

  The floor tiles industry in accordance with state regulations is one of the manufacturing industries that can participate in Indonesia into a developed industrial country, supported by the availability of various technologies and product innovations so that domestic floor tiles can be accepted. In the ...  Read More

Research Paper Engineering Optimization
Effect of fibre parameters on the physical and mechanical properties of epoxy-based reinforced Deleb palm fibre composite; using Taguchi grey relational optimization

Ayodeji Nathaniel Oyedeji; Ibrahim Iliyasu; James Bitrus Bello; Kazeem Adeniyi Salami; Musa Nicholas Dibal; Danjuma S Yawas

Volume 10, Issue 3 , July 2023, Pages 350-363

  This study considered the consequence of the length and weight composition percentage of Deleb palm fruit fiber on the physio-mechanical characteristics of an epoxy-based composite through the Taguchi grey relational optimization technique. Considering fiber reinforcement of 30 wt% to 40 wt% and fiber ...  Read More

Research Paper Operations Research
A two-stage stochastic programming approach for care providers' shift scheduling problems

Hajar Shirneshan; Ahmad Sadegheih; Hasan Hosseini-Nasab; Mohammd Mehdi Lotfi

Volume 10, Issue 3 , July 2023, Pages 364-380

  Due to the importance of the health field, the problem of determining the shift scheduling of care providers has been addressed in many studies, and various methods have been proposed to solve it. Considering different skills and contracts for care providers is one of the essential issues in this field. ...  Read More

Research Paper Game theory
The impact of discount policy on hotel pricing in a competitive market after Covid-19 using game theory

Elham Sadat Mousavi; Ashkan Hafezalkotob; Ahmad Makui; Mohammad Kazem Sayadi

Volume 10, Issue 3 , July 2023, Pages 381-391

  This paper presents an optimization model for hotel pricing in the competitive environment following the Covid-19 epidemic, in which the government intervenes by offering appropriate tariffs and hotels use incentive policies such as discounts to attract customers. we consider the government as the leader ...  Read More

Research Paper Data Envelopment Analysis, DEA
Decomposition of cost efficiency, given the set of price and cost production possibilities in data envelopment analysis

Reza Fallahnejad; Sanaz Asadi Rahmati; Kayvan Moradipour

Volume 10, Issue 3 , July 2023, Pages 392-411

  To evaluate the performance and estimate the efficiency of Decision-Making Units (DMUs) in Data Envelopment Analysis (DEA), the available data are used. These data are usually divided into two categories of inputs and outputs based on their natures. If the price data is also available for inputs, it ...  Read More

Research Paper Supply chain management
A multi-objective and multi-level model for location-routing problem in the supply chain based on the customer’s time window

Peiman Ghasemi; Hossein Hemmaty; Adel Pourghader Chobar; Mohamad Reza Heidari; Mahdi Keramati

Volume 10, Issue 3 , July 2023, Pages 412-426

  Today, logistics costs often make up a major part of large organizations’ expenses. These costs can be reduced with optimal design and its implementation in the supply chain. As a result, in present study, a two-objective mathematical location-routing model is presented, where an objective is to ...  Read More

Research Paper Supply chain management
Introducing a fuzzy robust integrated model for optimizing humanitarian supply chain processes

Meysam Donyavi Rad; Ehsan Sadeh; Zeinolabedin Amini Sabegh; Reza Ehtesham Rasi

Volume 10, Issue 3 , July 2023, Pages 427-453

  The natural disasters of the last few decades clearly reveal that natural disasters impose high financial and human costs on governments and communities. Concerns in this regard are growing day by day. Making the right decisions and taking appropriate and timely measures in each phase of the crisis management ...  Read More

Research Paper Computational modelling
A method based on the SCT to solve the inverse problem for heat equation

Samaneh Akbarpour; Abdollah Shidfar; Hashem Saberi Najafi

Volume 10, Issue 3 , July 2023, Pages 454-471

  In this article, a mathematical model of the inverse problem is considered. Based on this model a formulation of inverse problem for heat equation is proposed. Shifted Chebyshev Tau (SCT) method is suggested to solve the inverse problem. The aim of this determined effort is to identify unknown function ...  Read More

Research Paper Risk management
The impact of internal and external driving forces and strategic decisions on supply chain risk management (case study: automotive industry)

Seyed Reza Seyed Nezhad Fahim; Fatemeh Gholami Gelsefid

Volume 10, Issue 3 , July 2023, Pages 472-491

  The primary purpose of this research was to understand the importance of supply chain strategies in the field of supply chain risk management, emphasizing the effectiveness and efficiency of agile and lean strategies to create resilience and robustness in the supply chain. Data was collected from 392 ...  Read More

Research Paper Quality Control
Internal audit program planning and implementation determinants of an automotive company's ISO 9001 quality system

Forbes Chiromo; Nomupendulo Nokuthula Msibi

Volume 10, Issue 3 , July 2023, Pages 492-505

  This single case study examined how key internal audit planning and implementation determinants impacted a South African automotive company's ISO 9001 Quality Management System (QMS) objectives. The study used a mixed method approach; qualitative data nesting in quantitative data. The purposive sampling ...  Read More