Using of Multivariate Hotelling T2 Quality Control Charts in Bazyan Cement Factory

المؤلفون

  • Delshad Shaker Ismael Botani Department of Statistics & Informatics, College of Administration and Economics, Salahaddin University, Erbil, Kurdistan Region, Iraq
  • Mardin Samir Ali Department of Accounting, Paitaxt Technical Institute, Erbil, Iraq
  • Sherzad Kareem Othman Noble Technical Institute, Erbil, Kurdistan Region, Iraq

DOI:

https://doi.org/10.25212/lfu.qzj.7.4.41

الكلمات المفتاحية:

Multivariate, Quality Control Chart, Hotelling's T2, Cement production.

الملخص

Cement is representing the major element of concrete ingredient and most of Kurdish houses and buildings depending on concrete structure. Cement has physical and chemical characteristics that rely on them to attain good quality. Using quality control charts to know that the process is under control or not could be apply on cement factories in Kurdistan Regional Government (KRG). The objective of this paper is to use univariate and multivariate Quality Control Charts (QCC) to monitor the cement production in Bazyan factory. The data analyses were done through Statgraphics v.16 mainly for 4 cement characteristics (1 physical and 3 chemical) with 100 observations for each characteristic. The data was divided into 25 subgroups and then X-bar charts founded for the variables and compared them with the results of multivariate QCC using Hotelling T2. It was discovered that the process is not under control due to 2 chemical characteristics (Al2O3 and SO3). It is recommended to use the suggested multivariate chart by responsible authority especially the directorates concerned with monitoring of cement factories

التنزيلات

بيانات التنزيل غير متوفرة بعد.

المراجع

Anon., n.d. How Cement is Made. [Online]

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Gibb, I. & Harrison, T., 2010. Use of control charts in the production of concrete. s.l.:MPA/BRMCA - ERMCO.

Montgomery, D. C., 2009. Introduction to Statistical Quality Control. 6th ed. s.l.:John Wiley & Sons.

Morrison, D., 1976. Multivariate statistical methods. San Francisco, CA: McGraw Hill.

Oakland, J. S., 2008. Statistical Process Control. 6th ed. s.l.:Elsevier: Butterworth-Heinemann.

Schafer, W. D., Coverdale, B. J., Luxenberg, H. & Jin, Y., 2011. Quality Control Charts in Large-Scale Assessment Programs. Practical Assessment, Research & Evaluation, 16(15).

Wang, W., 2012. A simulation-based multivariate bayesian control chart for real time condition-based maintenance of complex systems.. European Journal of Operational Research, Issue 218, p. 726–734.

التنزيلات

منشور

2022-12-30

كيفية الاقتباس

Delshad Shaker Ismael Botani, Mardin Samir Ali, & Sherzad Kareem Othman. (2022). Using of Multivariate Hotelling T2 Quality Control Charts in Bazyan Cement Factory. QALAAI ZANIST JOURNAL, 7(4), 1036–1050. https://doi.org/10.25212/lfu.qzj.7.4.41

إصدار

القسم

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