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All Journal Journal of Industrial Engineering Management Jurnal Penelitian Enjiniring Fakultas Teknik Unhas
Syamsul, Nadzirah Ikasari
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Control & Systems Engineering Decision Sciences, Operations Research & Management Energy Engineering Industrial & Manufacturing Engineering

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Implementasi Six Sigma untuk Meminimasi Defect Produk Bata Ringan Di PT. XYZ Fadhlurrahman, Andi Muhammad; Amar, Kifayah; Syamsul, Nadzirah Ikasari
Jurnal Penelitian Enjiniring Vol 27 No 1 (2023)
Publisher : Center of Techonolgy (COT), Fakultas Teknik, Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/jpe.052023.03

Abstract

The advancement of technology in the construction materials industry sector is rapid, so that it is always necessary to innovate in order to create material products that are in line with current construction trends. PT. XYZ is a construction materials company that manufactures lightweight bricks using the Autoclaved Aerated Concrete (ACC) system. Many problems were discovered during the lightweight brick production process that did not match the quality of lightweight brick products with the standards set by the company. This study aims to identify the types of defects in lightweight brick production; determine the current sigma value (baseline) in lightweight brick production; identify the factors that cause defective products; and propose appropriate improvement to minimise defects and reduce losses caused by high defect rates in order to meet KPIs. According to the Pareto diagram analysis, the defects with the highest priority for repair are fracture (55.78 percent), cracked (30.65 percent), and broken (13.57 percent). The sigma level of lightweight brick production at PT. XYZ is 3.32, with the largest defect being 57,708 lightweight brick items per million opportunity of production. Based on the analysis of the Fishbone diagram, the potential factors that cause defective products are humans, machines, materials, methods, and measurements. The proposed improvements in the Improve stage are based on the results of the analysis using the Failure, Mode, and Effect Analysis (FMEA) method, where the company can determine appropriate preventive actions and improvements to reduce defective products and increase competitiveness.
ANALYSIS OF ZERO PLASTIC BAG POLICY EFFECT ON GREEN BEHAVIOUR WITH STRUCTURAL EQUATION MODELING (SEM) METHOD Indah, A.Besse Riyani; Syamsul, Nadzirah Ikasari; Retnari, Dian; Syamsul, Nilda
Journal of Industrial Engineering Management Vol 6, No 1 (2021): Journal of Industrial Engineering Management Vol. 6 No. 1
Publisher : Center for Study and Journal Management FTI UMI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33536/jiem.v6i1.642

Abstract

Plastic bag is a product that is very often used in everyday life. Plastic bags are one of the biggest contributors to the volume of waste in Indonesia. Therefore, a policy related to the use of plastic bags is called a zero plastic bag. This policy requires plastic bag users to switch to using environmentally friendly bags. This study was conducted to analyze the effect of the zero platic bag policy on Makassar City community behavior related to the environment or green behavior if this policy is applied in the City of Makassar. To determine the effect of the zero plastic bag policy on people's behavior patterns about the environment using the SEM (Structural Equation Modeling) method. Initial identification was carried out by distributing questionnaires to respondents using plastic bags, especially retail consumers in Makassar City. The questionnaire contained green behavior variables which consisted of five variables. Then the results of data collection using a questionnaire are processed using descriptive analysis and then look for the effect of zero plastic bag policies on green behavior using the SEM method. The results of the identification of the influence of zero plastic bag policy based on four variables namely environmental knowledge, environmental attitude, green advertising, and green consumption on green behavior are that of the four variables that have a positive influence on green behavior are environmental attitude, green advertising, and green consumption . The results of this study can be used as policy input and see how effective this policy is when applied in Makassar City.
Co-Authors A. Besse Riyani Indah Fadhlurrahman, Andi Muhammad Kifayah Amar Retnari, Dian Syamsul, Nilda