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

Decision analysis and methods
Fuzzified synthetic extent weighted average for appraisal of design concepts

O. M. Olabanji

Volume 9, Issue 2 , June 2020, , Pages 183-201

http://dx.doi.org/10.22105/riej.2020.214239.1111

Abstract
  Decision-making models such as Analytical Hierarchy Process (AHP), Weighted Decision Matrix (WDM), Pugh Matrix and the likes have been able to assist in the decision process considering the objectives of each evaluation criteria in the alternatives. However, these models need to consider the qualitative ...  Read More

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

Engineering Computations
Energy wastage on an automobile due to speed breakers: a case study on Woldia town

G. F. Belay

Volume 9, Issue 2 , June 2020, , Pages 202-208

http://dx.doi.org/10.22105/riej.2020.235832.1135

Abstract
  Many numbers of speed breakers were constructed on different outlets and even inside the city of Woldia for the purpose of reducing car accidents that occurred due to over speed driving. Surely while the speed of the vehicle is reduced or the driver drives the vehicle at low speeds, the probability of ...  Read More

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

Computational Intelligence
Real power loss reduction by Acridoidea stirred artificial bee colony algorithm

L. Kanagasabai

Volume 9, Issue 3 , September 2020, , Pages 209-215

http://dx.doi.org/10.22105/riej.2020.229820.1133

Abstract
  Acridoidea Stirred Artificial Bee Colony (ASA) Algorithm is applied to solve the power loss reduction problem. In the projected algorithm natural Acridoidea jumping phenomenon has been imitated and the modeled design has been intermingled with artificial bee colony algorithm. In the proposed algorithm, ...  Read More

Supply chain management
An integrated multi-objective mathematical model to select suppliers in green supply chains

P. Mohammad; H. Kazemipoor

Volume 9, Issue 3 , September 2020, , Pages 216-234

http://dx.doi.org/10.22105/riej.2020.262937.1173

Abstract
  Compatibility with the environment is one of the important factors in designing a supply chain system, which is also called the “green supply chain”. Similar to the supply chain, green suppliers are very important players in the green supply chain. This paper studies both selection of suppliers ...  Read More

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

Computational Intelligence
Breast cancer detection using machine learning algorithms

R. Shastri; N. Pradeep; K. K. Rao Mangalore; B. Rajpal; N. Prasad

Volume 9, Issue 3 , September 2020, , Pages 235-246

http://dx.doi.org/10.22105/riej.2020.259298.1155

Abstract
  Breast cancer has been the riskiest malignancy among ladies around the world. Nearly 2 million new cases were diagnosed in 2018. The main problem in the detection of breast cancer is to find how tumors turn into malignant or benign and we can do this with the help of machine learning techniques as they ...  Read More

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

Fuzzy sets and systems
Improvement of the student-teacher learning interface with selecting and designing a teaching method

N. Zahan; F. Islam; Sh. Mahmud

Volume 9, Issue 3 , September 2020, , Pages 247-259

http://dx.doi.org/10.22105/riej.2020.247823.1144

Abstract
  This Research work explores the effective teaching method using a single case study design and produces a plenty of information about students requirements, teachers recommendations and some teaching methods and learning styles .The resulting analysis provides a complete teaching method that may develop ...  Read More

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

Computational Intelligence
Smart voting web based application using face recognition, Aadhar and OTP verification

B. Singh; K Sh. Ranjan; D. Aggarwal

Volume 9, Issue 3 , September 2020, , Pages 260-270

http://dx.doi.org/10.22105/riej.2020.259841.1157

Abstract
  There are currently two ways to vote in India. They are secret ballots and electronic vote machines, but these two processes have some limitations or disadvantages. The current system is also insecure. Many people miss the opportunity to vote simply because they need to go to the polling station and ...  Read More

Engineering Optimization
Proposing the use of fine stone cutting factory as recycled materials in concrete and study of design economy and environmental protection

M. Sayadi; M. Ghomi

Volume 9, Issue 3 , September 2020, , Pages 271-285

http://dx.doi.org/10.22105/riej.2020.258012.1150

Abstract
  During the past years, extensive studies have been performed on concretes containing rice husk ash and recycled aggregates, which have shown the advantages of those concretes. Comparison of recycled concrete materials from the aggregates of quarrying plants for use in laboratory mixtures is the difference ...  Read More

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

Total quality management and quality engineering
A note on the generalized indices of process capability

S. Kumar Gauri; S. Pal

Volume 9, Issue 3 , September 2020, , Pages 286-303

http://dx.doi.org/10.22105/riej.2020.237520.1137

Abstract
  Process capability indices are widely used to assess whether the outputs of an in-control process meet the specifications. The commonly used indices are , , and . In most applications, the quality characteristics are assumed to follow normal distribution. But, in practice, many quality characteristics, ...  Read More

Reliability and Quality Engineering
Analyzing the Impact of 5S implementation in the manufacturing department: a case study

Tasnim Ahmed Tahasin; Himadri Sen Gupta; Noshin Tasnim Tuli

Volume 10, Issue 4 , December 2021, , Pages 286-294

http://dx.doi.org/10.22105/riej.2021.229039.1230

Abstract
  5S is a systematic approach that helps to organize a workplace for increasing efficiency and reduce wasting of productivity by providing an organized safe environment. The objective of this paper is to emphasize the implementation of 5S principles for the workplace by reflecting a tooling problem of ...  Read More

Total quality management and quality engineering
Designing the multivariate nonconforming proportion control charts considering the measurement error

Seyed Mohsen Ebrahimi; Parisa Shahnazari-Shahrezaei

Volume 10, Issue 4 , December 2021, , Pages 295-306

http://dx.doi.org/10.22105/riej.2021.309925.1258

Abstract
  Most qualitative characteristics cannot be easily reported numerically. In such cases, each product is inspected and usually divided into two conforming and nonconforming groups based on their qualitative characteristics. Since nowadays products and processes have generally several interdependent qualitative ...  Read More

Scheduling
A mathematical model for integrated operating room and surgical member scheduling considering lunch break

M. Hamid; R. Tavakkoli-Moghaddam; B. Vahedi-Nouri; H. Arbabi

Volume 9, Issue 4 , December 2020, , Pages 304-312

http://dx.doi.org/10.22105/riej.2021.263608.1175

Abstract
  Operating rooms (ORs) are among the most influential departments of a hospital that a major portion of its expenditures and revenues originate from it. Due to the limited resources and the presence of different stockholders, effective management, and the optimal planning of this department are challenging. ...  Read More

Supply chain management
Supply chain management information system model for quality assurance in educational management for ASEAN University network quality assurance (AUN-QA)

Artaphon Chansamut

Volume 10, Issue 4 , December 2021, , Pages 307-317

http://dx.doi.org/10.22105/riej.2021.293034.1231

Abstract
  The research aims to design and to assess the suitability supply chain management information system model for quality assurance in educational management for ASEAN University Network Quality Assurance (AUN-QA). The samples are 15 experts selected by purposive sampling. The data is analyzed by means ...  Read More

Computational Intelligence
A short communication article on contactless menu

K Shweta Ranjan; B. Singh; D. Aggarwal

Volume 9, Issue 4 , December 2020, , Pages 313-317

http://dx.doi.org/10.22105/riej.2020.260957.1162

Abstract
  In this Pandemic situation after dealing with contactless delivery, we introduce a "contactless menu", this feature help restaurants to gain the trust and confidence of customers in their safety and hygiene measures post-lockdown. The contactless menu will have two main components and, in the future, ...  Read More

Mathematical modelling
Applying mathematical modeling to create job rotation for improve workforce performance in semi-automatic systems

M. Bakhshi; S. E. Hashemi; H. Dezhdar

Volume 9, Issue 4 , December 2020, , Pages 318-327

http://dx.doi.org/10.22105/riej.2020.243223.1140

Abstract
  In this research, we present a mathematical model for allocating people to different jobs and shifting employees between related jobs. This action will reduce the repetitive activities workload and ergonomic risks at the planned time horizon, and finally increases the organization's efficiency. In this ...  Read More

Mathematical modelling
Optimal control strategy on the transmission dynamics of human papillomavirus (HPV) and human immunodeficiency viruses (HIV) coinfection

Eshetu Dadi Gurmu; Boka Kumsa Bole; Purnachandra Rao Koya

Volume 10, Issue 4 , December 2021, , Pages 318-331

http://dx.doi.org/10.22105/riej.2021.294463.1234

Abstract
  In this paper, optimal control theory is applied to Human Papillomavirus (HPV) and Human immunodeficiency viruses (HIV) coinfection model given by using a system of ordinary differential equations. Optimal control strategy was employed to study the effect of combining various intervention strategies ...  Read More

Manufacturing and Logistics
Cost minimization of artificial hip bone implantation surgery by adopting additive manufacturing technique and its feasibility assessment

N. Zahan; F. I. Jony; Kh. Nahar

Volume 9, Issue 4 , December 2020, , Pages 328-336

http://dx.doi.org/10.22105/riej.2020.257506.1148

Abstract
  Osteoarthritis (OA) of the hip is the most common joint disease in elderly people and associated with significant physical disability. Pain relief is a primary treatment of hip OA. When the patient with hip OA has failed medical treatment modalities and remains in pain, the patient should be referred ...  Read More

Inventory, logistics, and transportation
Improving the performance of planning and controlling raw material inventory in food industry

Filscha Nurprihatin; Metta Gotami; Glisina Dwinoor Rembulan

Volume 10, Issue 4 , December 2021, , Pages 332-345

http://dx.doi.org/10.22105/riej.2021.306872.1250

Abstract
  This paper discusses the inefficient and inaccurate raw material supply at a food company which results in a backlog. This means the overstock occurs so that the improvement of inventory control needs to be done. ABC classification is firstly utilized as input for Material Requirements Planning (MRP). ...  Read More