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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) Prisma Sains: Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram Jurnal Hidrografi Indonesia
Hudayat, Nurul
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Materials Science & Nanotechnology Mathematics Physics Other

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Instrument Response of the Indonesian People's Accelerograph (ARI) Type I Based on MEMS Sensor MPU6050 Akram, Rafi Syah; Satrio, Adji; Sutejo, Bayu; Martha, Agustya Adi; Widodo, Handi Sulistyo; Nugroho, Hapsoro Agung; Prakoso, Tio Azhar; Hudayat, Nurul
Prisma Sains : Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram Vol 13, No 2: April 2025
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/j-ps.v13i2.15206

Abstract

The Indonesian People’s Accelerograph (ARI) is an innovative ground motion recording device developed using predominantly local, cost-effective components to accurately monitor and record seismic-induced ground acceleration for disaster mitigation. This study aimed to evaluate the instrument response of ARI Type I, which utilizes a MEMS sensor (MPU6050) to capture dynamic acceleration data crucial for earthquake early warning systems. The research involved a comprehensive methodology comprising hardware design, field testing, and in-depth analysis of the instrument’s response by determining key parameters such as gain, poles, and zeros under various seismic conditions. The hardware was meticulously designed using KiCAD, with the final assembly enclosed in a 3D-printed casing that integrates the ESP32 microcontroller, sensor, SD card, and LCD, while data communication was achieved via I2C and WiFi protocols, and time synchronization was maintained using NTP. Field tests conducted at the UNILA site demonstrated that ARI Type I records ground acceleration on all three axes at a density of 50 signals per second. Data retrieved and processed through Python into a DataFrame confirmed the system’s high sensitivity and reliability, with a measured gain of approximately 3637.48 V/g, poles of 1.39133434×10⁻⁸ and 9.10426934×10⁻², and zeros of –1.52128433×10⁻⁶ and –4.69561707×10³. These promising results validate the potential of ARI Type I as an effective tool for seismic monitoring, contributing to the development of robust early warning systems and enhancing disaster resilience in earthquake-prone regions.
Studi Pendahuluan Pengaruh Arus Laut Musiman terhadap Waktu Tempuh Kapal Melalui Perairan Selat Lombok: Preliminary Study of The Influence of Seasonal Ocean Currents on Vessel Travel Time Through The Waters of The Lombok Strait Akbar, Harun I.; Harsono, Gentio; Sutejo, Bayu; Pianto, Teguh A.; Rudiastuti, Aninda W.; Ambarwulan, Wiwin; Sumargana, Lena; Priyadi, Hari; Hudayat, Nurul; Sugama, Agus Y.
Jurnal Hidrografi Indonesia Vol 5 No 2 (2023): Jurnal Hidrografi Indonesia
Publisher : Pusat Hidro-Oseanografi TNI Angkatan Laut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62703/jhi.v5i2.25

Abstract

Pemantauan karakteristik air laut di Selat Lombok sangat penting karena merupakan jalur pelayaran yang sibuk. Sejak 1 Juli 2020, Indonesia berwenang mengatur alur pelayaran menggunakan Traffic Separation Scheme (TSS). Banyak faktor yang mempengaruhi kondisi iklim di Selat Lombok, diantaranya adalah angin muson yang menyebabkan kecepatan dan arah arus berbeda. Tujuan dari penelitian ini adalah untuk mengidentifikasi karakteristik arus di Selat Lombok, menganalisis data Automatic Identification System (AIS) di kawasan tersebut, dan menganalisis pengaruh arus laut terhadap kecepatan dan arah kapal. Data arus laut yang bersumber dari Marine Copernicus dengan periode satu tahun (Oktober 2020 – September 2021) digunakan untuk menganalisis pola dan karakteristik arus. Data kecepatan dan jenis kapal diperoleh dengan menggunakan data AIS yang bersumber dari vessel finder. Dilakukan analisis overlay data arus dan lalu lintas laut, kemudian geovisualisasi data diimplementasikan dengan menggunakan software ODV. Sedangkan simulasi data kapal dan arus menggunakan Statfit dan Promodel. Hasil penelitian menunjukkan bahwa pergerakan arus sangat dipengaruhi oleh periode monsun, dimana kecepatan arus yang kuat terjadi pada musim barat dengan periode yang lebih singkat dibandingkan musim lainnya. Kecepatan dan arah arus mempunyai peranan dalam mengubah kecepatan kapal, yang kemudian dapat menjadi bahan pertimbangan dalam menentukan jadwal dan rute kapal demi alasan keamanan dan keselamatan transportasi.
Micro-Zonation Mapping of Landslide Potential Using Statistical Weighting Method of Analytical Hierarchy Process (AHP) in South Bengkulu–Lahat Road for Disaster Mitigation Hadi, Arif Ismul; Harlianto, Budi; Hudayat, Nurul; Farid, M.; Virgo, Frinsyah; Fadli, Darmawan Ikhlas; Humairah, Fadillah
Jurnal Penelitian Pendidikan IPA Vol 11 No 2 (2025): February
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i2.9915

Abstract

The research objective was to identify areas with high, medium, and low potential for landslides by micro-zonation on the South Bengkulu–Lahat road, map areas with potential for landslides based on the parameters that contribute to causing landslides using the AHP method, and determine the parameters for landslides, the dominant parameter affecting the occurrence of landslides in the study area. To achieve the research objectives, all parameters that cause landslides obtained at measurement points are then overlaid using the AHP statistical weighting method. The results showed that the area along the South Bengkulu–Lahat road had been identified microzoning high, medium, and low landslide potentials based on statistical weighting from parameters were obtained at the measurement points. For areas with high landslide potential, caution should be exercised, especially during the rainy season with high intensity and long duration.
Co-Authors Akbar, Harun I. Akram, Rafi Syah Arif Ismul Hadi Fadli, Darmawan Ikhlas Frinsyah Virgo Gentio Harsono Handi Sulistyo Widodo, Handi Sulistyo Hapsoro Agung Nugroho Hari Priyadi Harlianto, Budi Humairah, Fadillah Lena Sumargana M. Farid, M. Martha, Agustya Adi Pianto, Teguh A. Prakoso, Tio Azhar Rudiastuti, Aninda W. Satrio, Adji Sugama, Agus Y. Sutejo, Bayu Wiwin Ambarwulan