Research Paper Reliability and Quality Engineering
1. 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 , Autumn 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

Research Paper Total quality management and quality engineering
2. Designing the multivariate nonconforming proportion control charts considering the measurement error

Seyed Mohsen Ebrahimi; Parisa Shahnazari-Shahrezaei

Volume 10, Issue 4 , Autumn 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

Research Paper Supply chain management
3. 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 , Autumn 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

Research Paper Mathematical modelling
4. 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 , Autumn 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

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

Filscha Nurprihatin; Metta Gotami; Glisina Dwinoor Rembulan

Volume 10, Issue 4 , Autumn 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

Research Paper Reliability and Quality Engineering
6. Application of accelerated life testing in human reliability analysis

Rasoul Jamshidi; Mohammad Ebrahim Sadeghi

Volume 10, Issue 4 , Autumn 2021, Pages 346-357

http://dx.doi.org/10.22105/riej.2021.288263.1227

Abstract
  As manufacturers and technologies become more complicated, manufacturing errors such as machine failure and human error have also been considered more over the past. Since machines and humans are not error-proof, managing the machines and human errors is a significant challenge in manufacturing systems. ...  Read More

Research Paper Innovation, knowledge management, and organizational learning
7. Harmonisation of the engineering disciplines enhanced by the learning factory

Vusumuzi Malele; Mhlambululi Mafu

Volume 10, Issue 4 , Autumn 2021, Pages 358-370

http://dx.doi.org/10.22105/riej.2021.314637.1265

Abstract
  All engineering graduates must possess specific essential competencies when leaving universities to transition to the industry or be successful in the world of work. This paper adopts a literature review approach to synthesise available secondary data regarding creating harmony among engineering disciplines. ...  Read More