Decision analysis and methods
1. Greedy Algorithm for Solving Student Allocation Problem in Internship Program: A Case Study

Abdella Yimam Ali

Articles in Press, Accepted Manuscript, Available Online from 06 April 2021

http://dx.doi.org/10.22105/riej.2021.266125.1179

Abstract
  This paper presented greedy algorithm for solving student allocation problem that has arisen in internship program. In internship program, engineering students stay one semester in industries which are located across the country and teachers visit students once/twice for supervision during the program. ...  Read More

Decision analysis and methods
2. Development of a Multi-Period Multi-Attribute Group Decision-Making Method Using Type- 2 Fuzzy Set of Linguistic Variables

ali dehghani filabadi; gholamreza hesamian

Articles in Press, Accepted Manuscript, Available Online from 01 May 2021

http://dx.doi.org/10.22105/riej.2021.272821.1187

Abstract
  Recently, fuzzy linguistic variables have gained a great deal of attention from researchers in many decision-making problems. In this problems, type-2 fuzzy sets have been used to better cover linguistic data uncertainty. However, many of research works in this regard have been performed in type-2 fuzzy ...  Read More

Facility location, layout, design, and materials handling
3. Using a New Algorithm to Improve the Search Answer in Quadratic Assignment Problem (QAP)

Hossein Jafari; Abbas Sheykhan

Articles in Press, Accepted Manuscript, Available Online from 22 June 2021

http://dx.doi.org/10.22105/riej.2021.271276.1185

Abstract
  Layout design problem is one of the useful field of study used to increase the efficiency of sources in organizations. In order to achieve an appropriate layout design, it is necessary to define and solve the related nonlinear programming problems. Therefore, using computer in solving the related problems ...  Read More

Supply chain management
4. The study of multi-objective supplier selection problem by a novel hybrid method: COA/ε-Constraint

Elham Shadkam; Mahdi Parvizi; Reza Rajabi

Articles in Press, Accepted Manuscript, Available Online from 29 June 2021

http://dx.doi.org/10.22105/riej.2021.277170.1191

Abstract
  Today, paying attention to the interests of suppliers in supply chain management strategies is one of the important points in the success of long-term and strategic relationships with suppliers. Not paying enough attention to these points sometimes causes irreparable damage to the overall structure of ...  Read More

Data Envelopment Analysis, DEA
5. A new model to Measuring efficiency and returns to scale on Data Envelopment Analysis

Daneshian Behrouz; monzeli Abbas abbasali; Ghasem Tohidi; razavyan shabnam; sanei Masud

Articles in Press, Accepted Manuscript, Available Online from 29 June 2021

http://dx.doi.org/10.22105/riej.2021.272673.1186

Abstract
  We extend the concept of returns to scale in Data Envelopment Analysis (DEA) to the weight restriction environments. By adding weight restrictions, the status of returns to scale, i.e. increasing, constant, and decreasing, may need a change. We first define "returns to scale" underweight restrictions ...  Read More

Human factors, ergonomics, and safety
6. Optimal Value Determination for a Shape Changeable Furniture Design Parameters Using Full Factorial Design of Experiment Analysis

Mobasshira Zaman

Articles in Press, Accepted Manuscript, Available Online from 08 July 2021

http://dx.doi.org/10.22105/riej.2021.286958.1226

Abstract
  Optimization and selecting effective design parameters are a big issue in the field of product design and development. The optimal value determination for design parameters is a challenge for the furniture industry. Therefore, an appropriate statistical approach is required. In this research the full ...  Read More

Game theory
7. Modeling of the Supply Chain of Cooperative Game between Two Tiers of Retailer and Manufacturer under Conditions of Uncertainty

javid ghahremani nahr; mirreza zahedi

Articles in Press, Accepted Manuscript, Available Online from 14 July 2021

http://dx.doi.org/10.22105/riej.2021.276520.1190

Abstract
  The design of a repurchase agreement related to the amount of goods remaining in the two-echelon supply chain between the retailer and the manufacturer is examined. Two scenarios are considered quite separately; In the first scenario (decentralized) in which the retailer determines the price of the product ...  Read More

Supply chain management
8. Information System Model for Educational Management in Supply Chain for Thai Higher Education Institutions

artaphon jo chansamut

Articles in Press, Accepted Manuscript, Available Online from 18 July 2021

http://dx.doi.org/10.22105/riej.2021.285518.1225

Abstract
  The present study intends to design and assess the suitability of an information system model for educational management in supply chain for Thai higher education institutions. The sample group consists of ten experts in the field of information system, supply chain and curriculum. The data is analyzed ...  Read More