Quality Control
1. 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

http://dx.doi.org/10.22105/jarie.2021.301378.1369

Abstract
  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
2. 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 , April 2019, , Pages 16-25

http://dx.doi.org/10.22105/jarie.2019.169238.1074

Abstract
  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
3. 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 , April 2019, , Pages 71-79

http://dx.doi.org/10.22105/jarie.2019.159327.1066

Abstract
  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