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  Subjects -> SCIENCES: COMPREHENSIVE WORKS (Total: 374 journals)
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Jurnal Matematika, Sains, Dan Teknologi
Number of Followers: 0  

  This is an Open Access Journal Open Access journal
ISSN (Print) 1411-1942 - ISSN (Online) 2443-3586
Published by Universitas Terbuka Homepage  [2 journals]

    • Authors: Faula Arina, Ahmad Bahauddin, Anggie Maurdi
      Pages: 1 - 10
      Abstract: PT X is a company engaged in the cosmetic sector. The product with the biggest defect is the green tea tree oil facial wash. This study aims to reduce the number of defects by determining the optimal level setting on the  product. The Taguchi method is one of the methods in the experimental design that can be used to control product quality from noise by minimizing variations. This research method uses Taguchi because this method combines experimental results through optimal factors and factor levels and at the same time reduces the number of experiments so as to save time and costs. The experimental factors are water, Nacl, cocamide DEA, citrid acid, mixing speed, mixing time and mixing temperature. The results of this study found that the dominant type of defect in the  green tea tree oil facial wash products was the product with low viscosity. In this case, we used a nominal-is-best quality characteristic with a target of 37500 cPs. We found that the optimal setting for green tea tree oil facial wash products were 64.3% of water, 2% of cocamide DEA, 0.3% citric acid and 60 minutes for the mixing period.
      PubDate: 2022-03-15
      DOI: 10.33830/jmst.v23i1.2092.2022
      Issue No: Vol. 23, No. 1 (2022)

    • Authors: Niko Dwi Haryanto, Anas Alrasyid Putrawidya Buana
      Pages: 11 - 19
      Abstract: This study aims to prove the superiority of Tokopedia, Shopee, Bukalapak, JD.ID, Lazada and Zalora based on the quality of applications made by users of these applications. The sample in this study amounted to 30 people using accidental sampling technique. Operationalization of variables in this study consists of performance, reliability, features, conformance, durability, serviceability. aesthetic and perceived quality. The data analysis technique in this study used multidimensional scaling analysis. This study maps 6 marketplaces into 4 different quadrants, quadrant 1 consists of Lazada, quadrant 2 consists of Shopee and JD.ID, quadrant 3 consists of Bukalapak and quadrant 4 consists of Tokopedia and Zalora. The conclusion of this study with overall view indicate that there are 3 marketplace groups that have similarities, group 1 consists of Bukalapak and Lazada, group 2 consists of Shopee and finally group 3 consists of Tokopedia, JD.ID and Zalora. Through the division of these groups, it is assessed that group 1 (Bukalapak and Lazada) has a poor application quality, while group 2 (Shopee) has a good application quality and finally group 3 (Tokopedia, JD.ID and Zalora) has a best application quality.
      PubDate: 2022-05-09
      DOI: 10.33830/jmst.v23i1.2919.2022
      Issue No: Vol. 23, No. 1 (2022)
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