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All Journal Jurnal Sains dan Teknologi Journal of Artificial Intelligence and Engineering Applications (JAIEA) Nuansa: Jurnal Penelitian Ilmu Sosial dan Keagamaan Islam
Yunianto
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Penentuan Kebutuhan Poli Aluminium Klorida pada Proses Penjernihan Air di Unit Water Treatment PT. XYZ Kuala Tanjung Nelza, Novia; Sebayang, Mariani; Yunianto; Simatupang, Dimas Frananta
INSOLOGI: Jurnal Sains dan Teknologi Vol. 2 No. 6 (2023): Desember 2023
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/insologi.v2i6.2783

Abstract

A Water Treatment Unit (WTU) is a station that works on the processing and conditioning of raw water to meet the desired water quality. Water purification at PT. XYZ Kuala Tanjung uses raw water sourced from surface water or rivers. The river water used still contains solid substances and organic matter that render the water unsuitable for industrial use. Both suspended and colloidal solid substances can cause turbidity. Turbidity caused by solid substances can be addressed using coagulation techniques. The purpose of this research is to determine the optimal concentration and dosage of coagulant to clarify water in the WTU. The coagulant used is polyaluminum chloride (PAC). The research method is based on experiments using jar tests and stoichiometric calculations. The determination of the optimal coagulant is measured based on turbidity parameters. Experiments are conducted with varying concentrations of PAC ranging from 25-65 ppm, and the smallest turbidity value obtained is 1.21 NTU at a PAC concentration of 65 ppm, with a PAC requirement of 202.6679 kg/day. The higher the PAC concentration, the clearer the resulting water, but the daily requirement for PAC also increases.
Implementation of Gauss Elimination Method on Electrical Circuits Using Python Karo Karo, Ichwanul Muslim; Karo Karo, Justaman Arifin; Yunianto; Hariyanto; Falah, Miftahul; Ginting, Manan
Journal of Artificial Intelligence and Engineering Applications (JAIEA) Vol. 4 No. 1 (2024): October 2024
Publisher : Yayasan Kita Menulis

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59934/jaiea.v4i1.536

Abstract

Problem solving in engineering, science and other disciplines often requires complex and in-depth analysis. A problem that requires effort is determining the value of electric current in a circuit. Generally, the determination of the current value in a circuit with the calculation of Kirchoff's theorem. This research presents an alternative approach to determine the value of electric current in a circuit by combining the Gauss Elimination method and Kirchoff's theorem. The determining process support by Python. This method is effective in finding unknown values in a system of linear equations through matrix operations. A deep understanding of currents in electrical circuits is essential in the design, analysis, and maintenance of electrical systems. The application of the Gauss Elimination Method becomes important in determining the value of current in complicated electrical circuits. The Gauss Elimination Method is able to solve electrical circuit problems using matrix principles to achieve accurate and relevant solutions
THE EFFECT OF SERVICE QUALITY AND COST ON RETENTION MEDIATED BY SATISFACTION(STUDY ON SLTA KEBANGSAAN) Yunianto; C. Tarumingkeng, Rudy
NUANSA: Jurnal Penelitian Ilmu Sosial dan Keagamaan Islam Vol. 22 No. 1 (2025)
Publisher : Research Institute and Community Engagement of UIN MADURA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19105/nuansa.v22i1.19481

Abstract

This study aims to analyse the effect of service quality and tuition fees on student satisfaction and retention at SLTA Kebangsaan. The method used was descriptive quantitative through a questionnaire survey of 100 selected students. The results showed that service quality (facilities, teaching, and administrative services) and tuition fees have no direct effect on student retention. However, both factors significantly increase student satisfaction, which in turn has a positive impact on retention. The key finding of this study reveals that satisfaction acts as a full mediator in the relationship between service quality-cost and retention. The practical implications of this study emphasise the importance of schools prioritising increasing student satisfaction through service quality improvements and cost policy adjustments, as satisfaction is a key determinant in building students' long-term loyalty. This study provides a strategic contribution for school managers in formulating more effective student retention policies
Co-Authors C. Tarumingkeng, Rudy Dimas Frananta Simatupang Ginting, Manan Hariyanto Ichwanul Muslim Karo Karo Karo karo, Justaman Arifin Miftahul Falah Nelza, Novia Sebayang, Mariani