Research Paper Supply chain management
Optimization of a green supply chain network: a case study in a pharmaceutical industry

Umme Habiba; B.M. Atiur Rahman Ripon; MD. Tanzil Islam

Volume 10, Issue 3 , September 2021, Pages 174-186

http://dx.doi.org/10.22105/riej.2021.297117.1236

Abstract
  Green Supply Chain Management (GSCM) is defined as the integration of environmental thinking into supply-chain management, including product design, material sourcing and selection, manufacturing processes and procurement. Generally, the sustainable supply chain is built on three dimensions: social, ...  Read More

Research Paper Case studies in industry and services
Identifying and ranking the factors affecting the transportation of products from a marketing perspective using the fuzzy analytic hierarchy process approach

Seyed Alireza Hoseini Tabatabaei; Abdollah Naami; Alireza Rousta

Volume 10, Issue 3 , September 2021, Pages 187-205

http://dx.doi.org/10.22105/riej.2021.299558.1241

Abstract
  Economic researchers consider the development of transportation as blood circulation in the economic body of the country, which accelerating its circulation satisfies the vital and basic economic needs faster, and any kind of disorder and slowness in it causes great damage to the process of growth and ...  Read More

Research Paper Other
Identifying and prioritizing the factors affecting accounting action with the ANP and Dimatel

Zahra Mohammadpour; Davood Kiakojouri; Mohammad Javad Taghipouriyan Gilani

Volume 10, Issue 3 , September 2021, Pages 206-222

http://dx.doi.org/10.22105/riej.2021.302675.1244

Abstract
  Accounting action believes that people, like economic traders, seek to make the maximum profit in their behavior in different contexts. These people are very calculating and seek to invest in friendly relationships that have made the target people indebted to them. To be used in times of need of this ...  Read More

Research Paper Supply chain management
The study of multi-objective supplier selection problem by a novel hybrid method: COA/ε-constraint

Elham Shadkam; Mahdi Parvizi; Reza Rajabi

Volume 10, Issue 3 , September 2021, Pages 223-237

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

Research Paper Engineering Optimization
Fabrication and process parameter optimization of a 3d printer using response surface methodology

Fatin Ishraq; Rumaisa Ahmed; Joytun Nisa Joti

Volume 10, Issue 3 , September 2021, Pages 238-250

http://dx.doi.org/10.22105/riej.2021.297700.1238

Abstract
  3D printing or additive manufacturing is a technology in which 3D objects are printed by depositing a thin layer of material layer-by-layer until a final product is produced. In this research work, it has been focused on the fabrication of a Portable 3D Printer for the manufacturing of sample parts by ...  Read More

Review Paper Fuzzy optimization
Solving semi-fully fuzzy linear programming problems

Ladji Kane; Hawa Bado; Moctar Diakite; Moussa Konate; Souleymane Kane; Koura Traore

Volume 10, Issue 3 , September 2021, Pages 251-275

http://dx.doi.org/10.22105/riej.2021.302364.1242

Abstract
  The aim of this paper is to introduce a new technique for improve the methods for solving the Semi-fully Fuzzy Linear Programming Problems. An algorithm is proposed to find the fuzzy optimal solution of Semi-fully Fuzzy Linear Programming Problems. This technique is also best fuzzy optimal solution in ...  Read More

Research Paper Mathematical modelling
Some results on (c)-mapping

Linxin Li; Fengqiong Wang; Wu Dingping

Volume 10, Issue 3 , September 2021, Pages 276-285

http://dx.doi.org/10.22105/riej.2021.293334.1232

Abstract
  Compared with [1], in this paper, We will give first some sufficient conditions under which a (c)-mapping possesses an Approximate Fixed Point Sequence (AFPS). And then, we will prove that (c)-mapping has a fixed point. Finally, we will check some special properties of the fixed point sets of these mappings, ...  Read More