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All Journal Teknosains: Media Informasi Sains dan Teknologi Jurnal Fisika Unand JITEK (Jurnal Ilmiah Teknosains) 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 BULETIN FISIKA Jurnal Pengabdian Masyarakat Indonesia
Meidji, Icha Untari
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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.
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)
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.
Karakterisasi Termal Dan Fisik Komposit Geopolimer Semen Berpenguat Serat Ijuk Untuk Konstruksi Ramah Lingkungan Idris, Rani; Jahja, Mohamada; Meidji, Icha Untari; Ramadani, A Indra Wulan Sari; Rahman, Irsan
KUANTUM: Jurnal Pembelajaran dan Sains Fisika Vol 6 No 2 (2025): KUANTUM: Jurnal Pembelajaran dan Sains Fisika (Edisi Desember 2025)
Publisher : Program Studi Pendidikan Fisika STKIP Kie Raha Ternate

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63976/kuantum.v6i2.1156

Abstract

Upaya pengurangan emisi pada sektor konstruksi mendorong pengembangan komposit geopolimer berpenguat serat alam. Berbagai penelitian telah mengkaji pengaruh serat alam terhadap sifat mekanik dan durabilitas komposit semen, namun data mengenai keterkaitan densitas, porositas, dan konduktivitas termal pada komposit geopolimer semen berpenguat serat ijuk (Arenga pinnata) masih terbatas. Penelitian ini bertujuan untuk mengkarakterisasi sifat fisik dan termal komposit geopolimer semen berbasis serat ijuk dengan variasi rasio serat terhadap matriks. Serat ijuk diberi perlakuan alkali menggunakan larutan NaOH 5% dan dipotong sepanjang ±1 cm, kemudian dicampurkan ke dalam matriks semen–pasir dengan rasio volume serat:matriks 1:1, 1:2, dan 1:3. Sampel dicetak dan dikeringkan, lalu diuji densitasnya melalui pengukuran massa dan volume, porositasnya menggunakan metode perendaman air, serta konduktivitas termalnya dengan pengukuran laju aliran panas dan beda suhu antarpermukaan. Hasil menunjukkan bahwa rasio 1:1 menghasilkan densitas tertinggi sebesar 1,832 g/ml dan porositas terendah sebesar 26,28%, yang mencerminkan struktur komposit paling padat dan homogen. Porositas tertinggi diperoleh pada rasio 1:2 dengan nilai 33,16%, sedangkan rasio 1:3 menunjukkan nilai menengah. Nilai konduktivitas termal tertinggi terdapat pada rasio 1:2 sebesar ±220 W/m·K, sementara rasio 1:3 memberikan konduktivitas termal terendah sekitar 85 W/m·K sehingga lebih berpotensi sebagai material isolatif. Temuan ini memberikan gambaran awal mengenai pengaruh rasio serat ijuk terhadap hubungan densitas, porositas, konduktivitas termal pada komposit geopolimer semen dan menunjukkan potensi material ini sebagai bahan konstruksi yang lebih ramah lingkungan dengan sifat fisik dan termal yang dapat direkayasa.
Studi Geolistrik untuk Menentukan Ketebalan dan Komposisi Sedimen di Danau Limboto, Gorontalo Mamonto, Yusril Mahendra; Yunginger, Raghel; Mursalin, Mursalin; Zainuri, Ahmad; Meidji, Icha Untari; Setiawan, Dewa Gede Eka
(JITEK)Jurnal Ilmiah Teknosains Vol 11, No 2/Nov (2025): Jitek
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/jitek.v11i2/Nov.23754

Abstract

This study aims to identify the type and thickness of sediment in Lake Limboto using the Schlumberger configuration geoelectric method. This method was chosen because of its ability to detect resistivity variations that reflect the characteristics of subsurface sediments. The research procedure begins with an initial survey to determine strategic measurement locations, followed by electrode arrangement and resistivity measurements. Data obtained from the measurements were analyzed using geophysical analysis software to produce a resistivity distribution model. The results showed that there were variations in sediment types, including sand, clay, and alluvial soil, as well as varying sediment thicknesses in various locations. These findings are expected to provide useful information for water resource management and mitigation of shallowing problems in Lake Limboto.
Peningkatan Kesiapsiagaan Bencana Melalui Teknologi AR di Sekolah Dasar Tilongkabila I Made Hermanto; Huzaima Mas’ud; Icha Untari Meidji
JURNAL PENGABDIAN MASYARAKAT INDONESIA Vol. 4 No. 3 (2025): Oktober : Jurnal Pengabdian Masyarakat Indonesia (JPMI)
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jpmi.v4i3.5995

Abstract

This community service program aims to enhance disaster preparedness among elementary school students in Tilongkabila District, Gorontalo, an area prone to various natural disasters such as earthquakes, tsunamis, and liquefaction. The AR application developed allows students to understand the phenomena of natural disasters in a visual and interactive way, with three-dimensional visualizations and mitigation steps to be taken. An initial socialization on the disaster application based on AR was conducted, involving over 80% of the teachers and 40 students from elementary schools in Tilongkabila. The activity aimed to increase their understanding and skills in facing disasters, as well as to use the AR application effectively. This socialization also introduced how to use the application in learning, providing participants with direct experience interacting with the developed technology. Findings from the implementation indicate a substantial improvement in teachers’ understanding of the use of the AR-based disaster mitigation application, with a normalized gain (g) of 0.96, classified as very high. Additional results also show an increase in students’ knowledge related to disaster literacy. The program has cultivated a stronger culture of disaster preparedness within schools and surrounding communities.
Seismic Hazard Assessment in Gorontalo: Subduction Zone and Earthquake Analysis Icha Untari Meidji; Dewa Gede Eka Setiawan; Irsan; Kartika; Harsano Jayadi
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.
Earthquake Analysis Using the Probabilistic Seismic Hazard Analysis (PSHA) Method in Palu City Harsano Jayadi; Icha Untari Meidji; Irna Hidayat; Abdullah
Faraday: Journal of Fundamental Physics, Research, and Applied Science Vol. 1 No. 2 (2025): Faraday: Journal of Fundamental Physics, Research, and Applied Science
Publisher : Universitas Pembangunan Nasional "Veteran" Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/faraday.v1i2.18

Abstract

Palu, Indonesia, is a region with high seismic activity due to its location on the active Palu-Koro fault line. This study aims to analyze the probability of earthquakes, the spatial and temporal distribution of earthquake occurrences, and disaster mitigation efforts in anticipation of earthquakes in the region. Earthquake data in Palu City were analyzed based on magnitude, depth, and frequency of occurrence. The results indicate that most earthquakes occur at shallow depths ranging from approximately 10 to 56.8 kilometers, with a dominance of moderate magnitude (5.0–5.7 M_w). Over the past two decades, there has been an increase in the temporal occurrence of earthquakes, with a significant surge in 2018 when a magnitude 7.5 earthquake triggered a tsunami and liquefaction. Probability analysis indicates that earthquakes with high seismicity indices are highly likely to occur within a 10- to 50-year timeframe. The spatial distribution reveals that earthquakes tend to be concentrated around the Palu-Koro fault, the primary source of seismic activity in the region. These findings provide important insights into the seismic patterns of Palu City and can inform community preparedness and disaster mitigation strategy development.
Seismicity Analysis of Earthquake in Bengkulu Using Gutenberg-Richter and Omori laws Fiska Tobamba; Icha Untari Meidji; Harsano Jayadi
Faraday: Journal of Fundamental Physics, Research, and Applied Science Vol. 2 No. 1 (2026): Faraday: Journal of Fundamental Physics, Research, and Applied Science
Publisher : Universitas Pembangunan Nasional "Veteran" Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/faraday.v2i1.46

Abstract

Bengkulu Province is one of the regions in Indonesia with high seismic aktivity because it lies within the Sumatra tectonic plate zone and is crossed by the Sumatra Fault system. This tectonic setting makes Bengkulu highly vulnerable to Earthquake. This study analyzes the seismic characteristics of Bengkulu Using the Gutenberg-Richter law and examines the aftershock pattern following the major earthquake of june 4, 2000, based on the Omori-Utsu law. The data were obtained from the USGS earthquake catalog, consisting of earthquake records from 2015-2025 and afthershock data for 30 days after the mainshock. The Gutenberg-Richter Analysis evaluates the relationship between log10N and moment magnitude (Mw) to determine the a and b values. Meanwhile, Omori-Utsu Analysis examines the relationship between log10 n(t) and log10 (t+c) to obtain the parameters p and k. The result show that Bengkulu's seismicity is dominated by small to moderate earthquakes with relatively low b-values, indicating high tectonic stress conditions. The aftershock Analysis produced a p-value of 1.4822 with an R² value of 0.7767, showing rapid aftershock decay consistent with the Omori-Utsu law. These findings confirm Bengkulu has a high seismic Hazard level, emphasizing the need for continuous mitigation and preparedness efforts.
Co-Authors Abdul Mukaddas Abdul Mukaddas Abdullah Ahmad Zainuri 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 Cucu Kusmayancu Dewa Gede Eka Setiawan Dwa Desa Warnana Firman Firman Fiska Tobamba Gafur, Nurfitri Abdul Harsano Jayadi Harsano Jayadi Harsano Jayadi Hasan Arif Efendi Huzaima Mas’ud I Made Hermanto Idris, Rani Ika Daruwati, Ika Imran, Syahdan Ali Indriati Martha Patuti Irianto Uno Irna Hidayat Irsan Irsan Rahman Irsan Rahman, Irsan Jahja, Mohamad Jahja, Mohamada Jajat Jatnika Kartika Kurniasari, Septiana Lapananda, Nuraliva F.P Latief, Muh Fachrul Lukman Samatowa Mamonto, Yusril Mahendra Masruroh Masruroh Meilan Demulawa Merpati Teodoris Nalle Mikail Gabriel Khan Khan Moch Rio Pambudi Moh Dahlan Th Musa Mohamad Ramdhan Mohamad, Wahyu Mu’zizat Muh. Abduh Muhammad Fawzy Ismullah Massinai Muhammad Yunus Mursalin . Ninasafitri, Ninasafitri Paputungan, Devi Triana Rachman, Gazali Raghel Yunginger Yunginger Rifai, Rusni R 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