Quality Control
1. Developed Reverse Logistic Airline Service Quality (RL AIRQUAL) Model for Reverse Support Service Quality Gaps Analysis in Air Industry

Nazila Adabavzeh; Mehrdad Nikbakht

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


  The airline industry plays a fundamental role in the economic and social development of societies and it also has an important impact on improving foreign trade. The airline industry is one of the main infrastructures for sustainable development of the country. The quality of the reverse engineering ...  Read More

Quality Control
2. Revisiting the One-Sided EWMA Control Chart

Duy Duong-Tran; Romina Dastoorian; Lee Wells

Articles in Press, Accepted Manuscript, Available Online from 04 December 2021


  Exponential Weighted Moving Average (EWMA) control charts have been widely used in Statistical Process Control to detect small and persistent process shifts. In theory, EWMA control limits monotonically increase over time to account for the continual growth of the EWMA statistic’s variance. However, ...  Read More

Quality Control
3. Implementation of the quality control circle for improvement of painting production in PT QWE

Hernadewita Hernadewita; Diky Herdiawan; Afriyuddin Afriyuddin; Hermiyetti Hermiyetti

Volume 6, Issue 1 , Spring 2019, , Pages 16-25


  As one manufacturing industry which has engaged in the textile industry and produced zippers, the painting process at zipped production has a number of problems, as on zipper sticks to each other, uneven paint, etc. In this discussion, the improvements that will be made are related to the painting process.  ...  Read More

Quality Control
4. Implementation of repairing production machine productivity of spare parts speaker based on OEE value achievement

Surya Perdana; Dana Santoso Saroso

Volume 6, Issue 1 , Spring 2019, , Pages 26-32


  The industry under study is a company in the field of making Speaker, Megaphone and Amplifier. In this study, the Thoshiba IS 350 GS 350 Ton machine has observed. Constraints such as when producing machine Speaker Parts produce high reject products up to 7% of the total monthly production. When operating ...  Read More

Quality Control
5. Improvement of magazine production quality using Six Sigma method : case study of a PT.XYZ

Hernadewita Hernadewita; Mahefud Ismail; Mohamad Nurdin; Lien Kusumah

Volume 6, Issue 1 , Spring 2019, , Pages 71-79


  Quality control is an important thing that must be done by the company to minimize defective products. The company can analyze product defects by using the Six Sigma method, by formulating Define, Measure, Analyze, Improve, and Control (DMAIC) that occurs. PT. XYZ as a large company that prints magazines ...  Read More