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All Journal Teknosains: Media Informasi Sains dan Teknologi Jurnal Fisika Unand JPSE (Journal of Physical Science and Engineering) Jurnal Geocelebes Jurnal Penelitian Pendidikan IPA (JPPIPA) Neutrino Indonesian Physical Review Jurnal Fisika dan Terapannya Community Development Journal: Jurnal Pengabdian Masyarakat Jurnal Ilmiah Wahana Pendidikan KUANTUM: Jurnal Pembelajaran dan Sains Fisika Patria Artha Journal of Community Journal Of Khairun Community Services Journal of Science and Science Education (JoSSEd) Jurnal Edu Research Jurnal Pijar MIPA Newton-Maxwell Journal of Physics Geosains Kutai Basin KUANTUM Faraday: Journal of Fundamental Physics, Research, and Applied Science Jurnal Pengabdian Indonesia
Meidji, Icha Untari
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Religion Agriculture, Biological Sciences & Forestry Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Health Professions Materials Science & Nanotechnology Mathematics Mechanical Engineering Neuroscience Physics Public Health Social Sciences Other

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Investigasi Bidang Gelincir Pada Daerah Rawan Longsor Di Ruas Jalan Tawaeli-Toboli Menggunakan Metode Geolistrik Tahanan Jenis Jayadi, Harsano; Mukaddas, Abdul; Meidji, Icha Untari
Jurnal Fisika Unand Vol 9 No 3 (2020)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jfu.9.3.381-387.2020

Abstract

Telah dilakukan penelitian investigasi bidang gelincir pada daerah rawan longsor dengan metode geolistrik tahanan jenis 2D di jalan Tawaeli – Toboli dengan menggunakan konfigurasi Wenner dengan panjang lintasan 96 m dan spasi antar elektroda 6 m yang dianalisis dengan software Res2Dinv.  Selanjutnya dapat ditentukan struktur dan litologi bawah permukaan sehingga dapat memberikan informasi mengenai bidang gelincir. Hasil dari penelitian ini menunjukkan bahwa penyusun tanah di daerah penelitian adalah kerikil, batu pasir, dan genes. Nilai hambatan jenis setiap lapisan batuan yaitu kerikil berkisar antara 10 Ωm – 84 Ωm, lapisan batu pasir berkisar antara 84 Ωm – 158 Ωm, dan lapisan genes berkisar antara 232 Ωm – 528 Ωm. Pada wilayah penelitian terdapat lapisan genes yang diduga merupakan bidang gelincir. Bentuk bidang gelincir yang diperoleh pada wilayah penelitian yaitu jenis gelincir rotasi dengan arah longsoran mengarah ke arah jalan raya dengan kedalaman 7 m – 35 m untuk semua lintasan. Investigation of the slip surface has been carried out in landslide-prone areas using the 2D resistivity geoelectric method on the Tawaeli-Toboli road using the Wenner configuration with 96 meters of track length, and 6 m of electrode spacing analyzed with Res2DinV software. Furthermore, the subsurface structure and lithology can be determined to provide information about the slip plane. This study's results indicate that the soil compilers in the study area are gravel, sandstone, and genes. The value of electrical resistivity of each rock layer, namely gravel ranges from 10 Ωm - 84 Ωm, sandstone layer covers from 84 Ωm - 158 Ωm, and the genes layer ranges from 232 Ωm - 528 Ωm. In the research area, there are layers of genes that are thought to be the slip plane. The shape of the sliding plane obtained in the study area is the rotating slip with landslide direction leading to the highway with a depth of 7 meter - 35 meter for all trajectories.
The Influence of Noise Levels from Residents' Activities in the Andalas Traditional Market Area, Gorontalo City Meidji, Icha Untari; Demulawa, Meilan; Jayadi, Harsano
Jurnal Ilmiah Wahana Pendidikan Vol 10 No 13 (2024): Jurnal Ilmiah Wahana Pendidikan 
Publisher : Peneliti.net

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Noise problems caused by crowded urban markets make it difficult for people to find a quiet location. Andalas has many settlements, especially in the market area, which is located in urban areas and on the edge of the highway, which is also close to the market. This study aimed to determine the effect of market noise on health. The noise levels were measured using a sound meter measuring instrument, which was measured in three places: a clothing store, a fish store, and a public parking lot. Hypothesis testing was done using the chi-square statistical test with a 95% confidence level (p = 0.05).
PENGEMBANGAN ALAT DETEKSI DINI DALAM UPAYA PENINGKATAN KESIAPSIAGAAN WARGA DESA TOTOPO TERHADAP BENCANA BANJIR DAN TANAH LONGSOR Meidji, Icha Untari; Ahmadi, Haerul; Ninasafitri, Ninasafitri; Paputungan, Devi Triana; Akuba, Kisman R; Jayadi, Harsano
Community Development Journal : Jurnal Pengabdian Masyarakat Vol. 5 No. 1 (2024): Volume 5 No 1 Tahun 2024
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/cdj.v5i1.24708

Abstract

Desa Totopo merupakan salah satu desa terpencil di Kecamatan Bilato Provinsi Gorontalo yang sangat rentan terjadi multi bencana. Topografi Desa Totopo terdiri dari perbukitan dimana rumah warga berada pada lembahnya dan persis di samping rumah warga terdapat sungai besar yang sering menjadi penyebab banjir yang merendam rumah warga sekitar Desa Totopo. Hampir setiap tahun desa ini menjadi langganan bencana terutama bencana banjir dan tanah longsor. Oleh karena itu tujuan dari kegiatan ini adalah agar masyarakat Desa Topopo dapat mencegah ancaman, resiko dan dampak bencana sehingga Desa Totopo menjadi Desa tangguh terhadap bencana alam. Diharapkan pula Desa Totopo menjadi salah satu percontohan desa siaga bencana di Provinsi Gorontalo. Metode pengabdian yang dilakukan yaitu mengembangkan early warning system melalui perakitan dan pemasangan alat deteksi dini untuk banjir dan tanah longsor yang diharapkan mampu mengurangi resiko kerugian korban jiwa maupun harta jika terjadi bencana. Melalui kegiatan yang telah disebutkan, diharapkan Desa Totopo menjadi desa tangguh siaga bencana alam.
Seismic Hazard Assessment in Gorontalo: Subduction Zone and Earthquake Analysis Meidji, Icha Untari; Setiawan, Dewa Gede Eka; Irsan; Kartika; Jayadi, Harsano
Jurnal Penelitian Pendidikan IPA Vol 11 No 10 (2025): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i10.12956

Abstract

The Gorontalo region is one of the regions on the island of Sulawesi that is quite significant in terms of tectonic activity due to earthquakes. This is because Gorontalo is located in a tectonic environment, with a subduction zone in the Sulawesi Trench north and the Balantak Thrust and Batui Thrust south of the Gorontalo Fault. To further understand Gorontalo's seismic activity, we conducted a seismotectonic analysis in the form of identifying the number of earthquakes from 1994 to 2025, interpreting the results of the focal mechanism distribution by classifying them in the Kaverina diagram, and analyzing the results of earthquake hypocentre relocation from 2015 to 2022. The study results show that 2.317 earthquake events over 30 years spread across all areas of Gorontalo, categorised as shallow, medium, and deep earthquakes. The Gorontalo area is dominated by reverse faulting focus mechanisms, which are commonly found at shallow to intermediate depths. This is interpreted as being due to the presence of a subduction zone. A different situation occurs at deep depths, where the focal mechanism is normal faulting, indicating the presence of extensional forces due to the rollback slab process. The distribution of earthquake mechanisms also shows that a combination of strike-slip and reverse mechanisms occurs around active fault zones. In contrast, strike-slip mechanisms with standard mechanisms are more dominant in extensional zones.
PENERAPAN LABORATORIUM VIRTUAL LISTRIK DINAMIS UNTUK MENINGKATKAN AKTIVITAS PESERTA DIDIK Irsan; Meidji, Icha Untari; Jayadi, Harsano
Jurnal Pengabdian Indonesia (JPI) Vol. 1 No. 2 (2025): Vol. 1 No. 2 Edisi Juli 2025
Publisher : PT. Jurnal Center Indonesia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62567/jpi.v1i2.1106

Abstract

Pengabdian kepada masyarakat ini bertujuan mengetahui bagaimana pemanfaatan laboratorium virtual dalam pembelajaran listrik dinamis serta dampaknya terhadap peningkatan aktivitas dan pemahaman siswa. Laboratorium virtual memungkinkan siswa untuk melakukan eksperimen serta simulasi dari percobaan laboratorium fisik yang kompleks menjadi lebih mudah dipamahi. Ini membantu mereka memahami konsep fisika dengan lebih baik, terutama yang berkaitan dengan hukum ohm, arus dan tegangan. Dalam pengabdian ini, pendekatan kuantitatif digunakan untuk menjalankan eksperimen yang melibatkan dua kelompok, masing-masing disebut sebagai kelompok eksperimen dan kontrol. Tujuan dari pendekatan ini adalah untuk mengevaluasi perbedaan yang terjadi antara siswa yang menggunakan laboratorium virtual dibandingkan dengan metode pembelajaran konvensional. Hasil pengabdian ini menunjukkan bahwa menggunakan laboratorium virtual tidak hanya membuat siswa lebih terlibat dalam tugas-tugas, tetapi juga membuat mereka lebih memahami konsep-konsep listrik dinamis. Laboratorium virtual menunjukkan peningkatan dalam partisipasi siswa, pemahaman konsep, dan kemampuan bekerja sama dalam kelompok. Pengabdian kepada masyarakat ini menunjukkan bahwa kegiatan yang memanfaatkan teknologi laboratorium virtual memiliki potensi besar untuk membuat pengalaman belajar yang lebih fleksibel, interaktif, dan mendalam. Laboratorium virtual dapat menjadi alternatif yang bagus untuk fasilitas fisik untuk pembelajaran listrik dinamis bahkan tanpa menggunakan jaringan internet. Diharapkan bahwa ini akan digunakan lebih luas di lembaga pendidikan untuk mendukung pembelajaran yang lebih inovatif dan efektif.
Testing of Soil Moisture and Temperature Sensors in an Automatic Plant Watering System Based on the Internet of Things (IoT) Yudoyono, Susilo; Setiawan, Dewa Gede Eka; Yunus, Muhammad; Latief, Muh. Fachrul; Meidji, Icha Untari
Jurnal Pijar Mipa Vol. 20 No. 7 (2025): in Progress
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v20i7.10585

Abstract

The implementation of automated plant watering systems in the agricultural sector utilizes sensor technology based on the Internet of Things (IoT). This study aims to evaluate the performance of soil moisture and temperature sensors utilizing the IoT in an automated plant watering system. The sensors used are the YL-69 sensor to determine soil moisture and the DS18B20 temperature sensor to determine soil temperature. Both sensors are connected to the NodeMCU ESP8266 microcontroller. Testing was conducted from 07:00 to 17:00 WITA, with a 1-hour interval for data collection, monitored using the IoT on the blink application on the cellphone. Then, the data obtained is analyzed to determine the values of error and accuracy. The results obtained on the soil moisture sensor have an average error of 0.989% with an average accuracy of 99.011%. Meanwhile, the results obtained on the soil temperature sensor have an average error of 1.240% with an average accuracy level of 98.760%. The lower the error value, the better the sensor performance indicates the sensor's ability to read data that is close to the actual value of the comparison tool. Likewise, the higher the level of sensor accuracy, the better and more reliable the sensor is when used in an IoT-based soil temperature measurement system. This value indicates that the sensor's performance has a very high level of reliability and precision in detecting soil moisture and temperature in real-time. This system can be applied in agricultural technology education and vocational training programs.
Co-Authors Abdul Mukaddas Abdul Mukaddas Abdullah Ahmadi, Haerul Akuba, Kisman R Andi Indra Wulan Sari Ramadani Aris, Ayub Pratama Asri Arbie Ayusari Wahyuni Ayusari Wahyuni Basyri Yadi Tang Bergita Gela M Saka Botjing, Muslimin U Dewa Gede Eka Setiawan Dwa Desa Warnana Efendi, Hasan Arif Firman Firman Gafur, Nurfitri Abdul Harsano Jayadi Hidayat, Irna I Made Hermanto Ika Daruwati, Ika Imran, Syahdan Ali Indriati Martha Patuti Irianto Uno Irsan Rahman Jahja, Mohamad Jatnika, Jajat Kartika Kurniasari, Septiana Lapananda, Nuraliva F.P Latief, Muh. Fachrul Masruroh Masruroh Meilan Demulawa Moch Rio Pambudi Moh Dahlan Th Musa Mohamad, Wahyu Mu’zizat Muh. Abduh Muhammad Fawzy Ismullah Massinai Muhammad Yunus Ninasafitri, Ninasafitri Paputungan, Devi Triana Rachman, Gazali Ramdhan, Mohamad Rifai, Rusni R Samatowa, Lukman Sismanto Sismanto Supu, Idawati Tang, Basyri Yadi Tang, Bunga Widi Atmoko Widi Atmoko Widi Atmoko Windi Lestari Yudoyono, Susilo Yusniati H. Muh. Yusuf Yutdam Mudin