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All Journal Journal of Mechanical Engineering Science and Technology Jurnal Maneksi (Management Ekonomi Dan Akuntansi)
Filbert, Filbert
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Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Study of a Remote Wind Resource Assessment System Integrated with Internet of Things Arbiyani, Filian; Filbert, Filbert; Theo, Anthony Nathanael
Journal of Mechanical Engineering Science and Technology (JMEST) Vol 8, No 1 (2024)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um016v8i12024p215

Abstract

Wind energy is an emerging and popular source of clean energy due to its non-polluting nature and low cost. The efficient use of wind energy requires accurate and precise wind parameter measurements, which is where wind resource assessment (WRA) comes into play. The IoT and cloud-based systems have been applied to remote monitoring systems and provide crucial solutions for data acquisition, storage, and analytics in wind energy technology. This study aims to build a remote WRA system integrated with the Internet of Things. This study utilizes an Arduino Uno microcontroller, RK100-01 wind speed sensor, BMP280 temperature and pressure sensor, and SIM800L GPRS module to collect and transfer real-time data to the ThingSpeak cloud. The experiment was conducted at Atma Jaya Catholic University of Indonesia - Campus 3 BSD with the remote WRA system installed inside Stevenson screens to protect it from environmental conditions. Wind speed data is measured at a height of 10 meters, while air pressure and temperature data are measured at a height of 1.5 meters. Data retrieval utilizes two methods, viz. direct measurement every 15 minutes, and cloud-based retrieval every 30-second intervals. The study demonstrates that a remote WRA system integrated with IoT can measure, display, and upload three crucial parameters for assessing wind energy potential, namely wind speed, air pressure, and air temperature. This remote WRA system also provides flexibility in real-time data collection since it is accessible anytime and anywhere, thereby reducing the need for site visits during deployment.
Analisis Perbandingan Pajak Hotel, Restoran, Reklame, Dan Retribusi Kebersihan Sebelum Dan Sesudah Pandemi Di Provinsi Aceh Periode 2018-2021 Hidayat, Ferry; Gurusinga, Latersia Br; Filbert, Filbert
Jurnal Maneksi (Management Ekonomi Dan Akuntansi) Vol. 13 No. 2 (2024): JUNI
Publisher : Politeknik Negeri Ambon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/jm.v13i2.2295

Abstract

The COVID-19 pandemic in 2020 caused a decreased Revenue of Local Taxes and Retributions in Indonesia. In 2022, there will be a simplification for the types of Local Taxes and Retributions from Law Number 28 of 2009 to Law Number 1 of 2022 because there are too many types of Local Taxes and Retributions, which made monitoring difficult. This study aimed to analyze and compare Hotel Tax, Restaurant Tax, Billboard Tax, and Cleaning Retribution before and after the pandemic in Regencies/Cities of Aceh Province. Data analysis of the study used quantitative descriptive and comparative to compare the increased or decreased revenues between two samples before and after the pandemic. The results of the Wilcoxon Signed-Ranks Test show that there is a significant difference in revenue from Hotel Tax and Billboard Tax before and after the pandemic. Revenue from Hotel Tax experienced a significant decrease, while Revenue from Billboard Tax experienced a significant increase. Meanwhile, there is no significant difference between from Revenue Restaurant Tax and Revenue from Cleaning Retribution before and after the Pandemic.
Co-Authors Ferry Hidayat Filian Arbiyani Latersia Br Gurusinga Theo, Anthony Nathanael