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All Journal TELKOMNIKA (Telecommunication Computing Electronics and Control) Infotronik : Jurnal Teknologi Informasi dan Elektronika Kumawula: Jurnal Pengabdian Kepada Masyarakat Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi TECHNO-SOCIO EKONOMIKA Jurnal Abdimas Sang Buana Multifinance
Kusmadi, Kusmadi
Universitas Sangga Buana
Aerospace Engineering Humanities Automotive Engineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mechanical Engineering Social Sciences Other

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Kontrol Overheating Elemen Pemanas Menggunakan PLC, HMI, dan Modul GSM Hery Wahyudi; Kusmadi Kusmadi
TECHNO-SOCIO EKONOMIKA Vol 18 No 2 (2025): Jurnal Techno-Socio Ekonomika - Oktober
Publisher : LPPM Universitas Sangga Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32897/techno.2025.18.2.5172

Abstract

This research focuses on designing and implementing a monitoring and control system for the ZYD-20 steam turbine lubricating oil purification machine at PT Borneo Alumina Indonesia, Mempawah, West Borneo. The system aims to prevent overheating of the heater element, which could damage the equipment and reduce oil quality. It employs a 3-wire RTD PT100 sensor for real-time temperature monitoring, a PLC to process sensor data and control protective actions (shutting down the inlet pump, outlet pump, vacuum pump, and cutting off power to the heater), and an HMI to display temperature data, operational status, and overheating alarms. Additionally, an Arduino Uno with a GSM module sends SMS notifications to the supervisor during an emergency stop triggered by overheating. This system enhances operational stability, minimizes overheating risks, preserves lubricating oil quality, and improves both efficiency and safety of the purification process.
THE EFFECT OF RETURN ON EQUITY (ROE) AND DIVIDEND POLICY ON STOCK RETURNS IN PROPERTY AND REAL ESTATE COMPANIES LISTED ON THE INDONESIA STOCK EXCHANGE PERIOD 2020–2024 Resti Alfatin; Rakha Rajendra; R. Aryanti Ratnawati; Kusmadi Kusmadi
Multifinance Vol. 3 No. 3 (2026): Multifinance
Publisher : PT. Altin Riset Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61397/mfc.v3i3.518

Abstract

This study aims to analyze the effect of Return on Equity (ROE) and Dividend policy projected by Dividend Payout Ratio (DPR) on Stock Returns in property and real estate sector companies listed on the Indonesia Stock Exchange (IDX). The data used in this study are quarterly panel data from 7 companies during the period 2020Q1 to 2024Q4, resulting in a total of 140 observations. The analysis method used is panel data regression with the Chow test and Hausman test stages for model selection. Classical assumption tests (normality, multicollinearity, heteroscedasticity, and autocorrelation) are also conducted to ensure the validity of the model. The results of this study indicate that the Fixed Effect Model (FEM) is the chosen model based on a series of tests. The classical assumption test indicates that the model residuals are normally distributed, proven to be free from multicollinearity, heteroscedasticity, and autocorrelation problems. Simultaneously, ROE and dividend policy (DPR) have a significant effect on stock returns. Partially, Return on Equity (ROE) is found to have a negative and significant effect on Stock Return, while Dividend Payout Ratio (DPR) has a positive and significant effect on Stock Return. These findings provide implications for investors in making investment decisions and for company management in formulating financial policies.
Co-Authors Achmad Munir Akbar Ghiffari Aprianti, Ine Asep Misbah Asep Najmurrokhman Bambang Sugiarto Chairunnisa Chairunnisa Christian Halim, Daniel Gunawansyah Hanif Ikhsan Alhafidh Hendajany, Nenny Hendri Hermansyah Hery Wahyudi I Made Gde Dharma Wirama Kusnandar Kusnandar Mochamad Andy Ardyansyah Muhamad Taufik R. Aryanti Ratnawati Rakha Rajendra Resti Alfatin Riffa Haviani Laluma Setiawan, Audita Sidik, Nur Taupik Sunubroto Sunubroto Taufik Mulyana Viery Viransyah