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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 Panthera : Jurnal Ilmiah Pendidikan Sains dan Terapan Geosains Kutai Basin Jurnal Pengabdian Rekayasa Sistem 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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PENGUATAN KESIAPSIAGAAN BENCANA DI DESA TOTOPO: IMPLEMENTASI JALUR EVAKUASI DAN TITIK KUMPUL BERBASIS GEOLOGI UNTUK MENGHADAPI BAHAYA BANJIR DAN LONGSOR Meidji, Icha Untari
Patria Artha Journal of Community (PKM) Vol 4, No 1 (2024): Patria Artha Journal of Community
Publisher : Universitas Patria Artha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33857/pajoco.v4i1.877

Abstract

Totopo Village is an area located in Bilato District, Gorontalo Province. This are is one of the remote villages that is highly vulnerable to various types of disasters. The topography of the village is dominated by hills, with houses located in the valley, adjacent to a large river that often causes flooding and submerges settlements around Totopo Village. The hills in this village are mostly bare, and some of them are used by residents to grow secondary crops, crops that do not have a strong ability to bind the soil, thus becoming one of the triggering factors for landslides. In 2022, there was a major flood and landslide that made this village isolated. The purpose of this community service is to improve the preparedness of the community of Totopo Village, Gorontalo Province, especially in facing floods and landslides. Identification of locations for the installation of evacuation routes and gathering points based on geological topographic interpretation resulted in 2 gathering points. The results of this community service are the installation of 5 evacuation route signs and 2 gathering point signs installed around Totopo Village.
Studi Prospek Reservoar Hidrokarbon Berdasarkan Karakteristik Petrofisika di Lapangan ‘X’ Cekungan Sebuku Jayadi, Harsano; Imran, Syahdan Ali; Atmoko, Widi; Uno, Irianto; Meidji, Icha Untari
GEOSAINS KUTAI BASIN Vol. 7 No. 1 (2024)
Publisher : Geophysics Study Program, Faculty of Mathematics and Natural Sciences, Mulawarman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/geofisunmul.v7i1.1275

Abstract

The research was conducted to determine the hydrocarbon reservoir zone in the LIM-1 well, which was analyzed using quantitative and qualitative methods to assess the reservoir type involving several log data, including gamma ray (GR), neutron (NPHI), and density (RHOB). The quantitative analysis stage is the determination of hydrocarbon content by the crossover of NPHI log data, and RHOB log data with six target zones. The quantitative analysis stage in this study uses Interactive Petrophysics (IP) software version 3.5 on well LIM-1, also with target zone 1 only. The results obtained from qualitative and quantitative analysis at well LIM-1 show that there are three types of reservoirs in the study area from several target zones according to depth, which are dominated by oil, water, and gas.
Analisis Material Akustik Pada Ruang Pertemuan Di Pltd Telaga Mengunakan Metode Sabine & Simulasi Ecotect Analysis Demulawa, Meilan; Untari Meidji, Icha; Daruwati, Ika
Jurnal Edu Research Vol. 11 No. 1 (2022): Jurnal Edu Research
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Pasir Pengaraian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30606/jer.v11i1.1504

Abstract

Telah dilakukan penelitian mengenai material akustik yang sangat erat dengan faktor interior dan eksterior yang digunakan dalam bangunan Unit layanan PLTD Telaga. Tujuan dari penelitian yaitu Mengetahui seberapa idealnya akustik ruang pada ruang pertemuan di ULPLTD Telaga sehingga tercapainya kondisi pendengaran yang ideal. Metode yang digunakan dalam penetian ini adalah Formulasi Sabine yaitu untuk menghitung nilai waktu dengung di ruang pertemuan kemudian disimulasikan dalam konteks model bangunan menggunakan Simulasi Ecotect Analysis. Berdasarkan analisis data didapatkan material yang digunakan pada ruang pertemuan sudah sesuai dengan standar kenyamanan akustik ruang, setiap material mempunyai fungsi dan tugas tersendiri dalam membangun sebuah kenyamanan akustik ruang, baik material sebagai pemantul maupun penyerap bunyi, waktu dengung yang dihasilkan berada pada nilai standar waktu dengung yang ideal sehingga untuk penambahan atau pengurangan interior pada ruangan harus memperhatikan spesifikasi material
Pelatihan Penggunaan Instrumen Tes Skill Numerik Sebagai Upaya Peningkatan Kecepatan dan Ketepatan Berhitung Peserta Didik Sekolah Dasar Negeri 5 Suwawa Mohamad, Wahyu Mu’zizat; Hermanto, I Made; Jayadi, Harsano; Meidji, Icha Untari
Journal Of Khairun Community Services Vol 4, No 2 (2024): Journal Of Khairun Community Services
Publisher : Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/jkc.v4i2.9134

Abstract

Pelatihan penggunaan instrumen tes skill numerik dilaksanakan untuk meningkatkan kecepatan dan ketepatan berhitung siswa di SDN 5 Suwawa, yang masih menunjukkan kesulitan dalam menyelesaikan soal berhitung sederhana secara cepat dan akurat. Pengabdian Kepada Masyarakat (PKM) ini bertujuan untuk membantu siswa mengembangkan keterampilan numerik dasar yang esensial bagi pembelajaran matematika dan bidang ilmu lainnya. Pelaksanaan pelatihan dilakukan dalam Program Kampus Mengajar 7 (KM 7) Tahun 2024, melibatkan mahasiswa dan guru dengan metode tatap muka di ruang kelas. Tahapan pelatihan mencakup penjelasan teori, simulasi soal berhitung, dan permainan numerik yang edukatif dan interaktif untuk meningkatkan minat siswa. Hasil evaluasi menunjukkan bahwa siswa mengalami peningkatan signifikan dalam kecepatan dan ketepatan berhitung setelah mengikuti pelatihan. Selain berdampak positif pada siswa, pelatihan ini juga membantu guru dalam memonitor dan menyesuaikan pendekatan pembelajaran matematika berdasarkan kebutuhan individu siswa. Kesimpulannya, penggunaan instrumen tes skill numerik terbukti efektif dalam meningkatkan keterampilan berhitung siswa sekaligus menjadi alat bantu evaluasi bagi guru dalam pembelajaran numerik yang lebih terarah dan berkelanjutan.
Analysis of Magnetic Susceptibility in Vertical Sediments in the Fish Pond Area of Limboto Lake Tang, Bunga; Yunginger, Raghel; Yunus, Muhammad; Patuti, Indriati Martha; Gafur, Nurfitri Abdul; Jahja, Mohamad; Ramadani, Andi Indra Wulan Sari; Meidji, Icha Untari; Supu, Idawati
Jurnal Pijar Mipa Vol. 19 No. 6 (2024): November 2024
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.v19i6.7829

Abstract

Limboto Lake is one of the lakes in Indonesia that has been degraded due to sedimentation and waste disposal, which will affect the lake ecosystem and its surroundings. This research aims to analyze the Magnetic Susceptibility in Vertical Sediments in the fish pond area of ​​Limboto Lake. Efforts must be made to trace sediment's contribution, which is controlled by lithogenic and anthropogenic components. Vertical sediment samples from Fish Ponds in Limboto Lake were taken at one point with a depth of 15 meters using an XY-1A Spindle drilling machine. This type of research uses survey techniques and laboratory tests that use rock magnetism methods, especially susceptibility parameter analysis using the Bartington MS2 susceptibility meter instrument at a low frequency of 470 Hz and a high frequency of 4700 Hz to obtain information on the concentration of magnetic minerals. The sediment samples tested did not go through preparation, such as sieving and drying, but the unsifted samples were put into the plastic holder to analyze the susceptibility magnetic parameter. The measurement results show that the low-frequency magnetic susceptibility (XLF) value ranges from 1.11 x 10-8 m3/kg to 9.68 x 10-8 m3/kg. The concentration of magnetic minerals in this sample contains paramagnetic minerals, and based on the XFD % value, which ranges from 0.206% to 4.714% with an average value of 1.170%, the magnetic minerals in the samples tend to be dominated by coarse-grained non-superparamagnetic minerals (>0.03 µm) and tend to occupy stable single-domain (SSD) and multi-domain (MD) domains. Magnetic susceptibility parameters tested using sediment samples without going through a sieving process can be used to determine sediment characteristics in lake areas that tend to be controlled by anthropogenic components.
The Effect of Temperature Differences on the TEG-Based Conversion of Thermal Energy into Electrical Energy Lapananda, Nuraliva F.P; Arbie, Asri; Yunus, Muhammad; Latief, Muh. Fachrul; Kurniasari, Septiana; Meidji, Icha Untari
Journal of Science and Science Education Vol. 5 No. 2 (2024): October
Publisher : Pascasarjana, Mataram University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jossed.v5i2.9170

Abstract

Thermoelectric Generator (TEG) is an energy conversion device used as an electricity generator to create hot electric currents through temperature differences. This research aims to determine the effect of time on temperature differences from burning rice husks (Oryza sativa L.) in series and parallel configurations. This research method was carried out experimentally by burning rice husk biomass in a kiln and utilizing the heat of the fire to convert it into electrical energy. The TEG total of 48 TEG pieces which produce the highest current in the series configuration produces the highest with respective values ​​of current 0.09 A and voltage 1.02 V, and the parallel configuration TEG produces the highest with respective values ​​of current 0.98 A and voltage 0.25 V. The highest temperature difference reaches 30.5°C in the series configuration and 31.8°C in the parallel configuration. The longer the burning time, the more significant the resulting temperature difference. Likewise, the greater the electric current and voltage, the longer the burning time.
A NON-LINEAR HYPOCENTER LOCALIZATION ALONG THE ACTIVE PALU-KORO FAULT: A CASE STUDY CENTRAL SULAWESI Jayadi, Harsano; Th. Musa, Moh. Dahlan; Rachman, Gazali; Meidji, Icha Untari; Massinai, Muhammad Fawzy Ismullah; Warnana, Dwa Desa
Indonesian Physical Review Vol. 8 No. 2 (2025)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v8i2.418

Abstract

The Central Sulawesi region is prone to earthquakes, as evidenced by its complex geological structure. Several plates and active fault movements in the vicinity cause this situation. One of the active faults that often causes earthquakes is the Palu-Koro active fault. The city of Palu is one of the areas passing through the Palu-Koro fault. The danger of this earthquake occurrence can be ascertained and assessed using a suitable earthquake location. Within the scope of our investigation, we used a non-linear approach to predict the hypocenter site in the vicinity of the Palu-Koro fault that is active. This Method use oct-tree importance sampling algorithm to generate spatial hypocenter locations. Using the AK135 minimal seismic velocity model, we manually re-picked the arrival times of wave P-waves and S-waves arrival timings of 3,852 and 3,690, respectively, collected by 24 BMKG observation sites from January 2011 to December 2015, utilizing the minimal 1D seismic velocity model from AK135. We employed criteria to ascertain the event's location, including a minimum of four stations exhibiting a distinct beginning of P and S wave arrivals, with a magnitude of at least 3Mw and an average depth ranging from 10 to 20 km. The outcomes of seismic event location identification exhibit improved clustering with inversion, revealing a zero-centered Gaussian distribution, where more time discrepancies, both positive and negative, correspond to increased estimating mistakes. According to this research, the Palu-Koro active fault line's primary shallow seismic zone is the most prominent feature in the area and confirms the existence of active land faults that cause earthquake events by conducting a process of determining a locally updated 1D velocity model that will be used to determine a more precise relocation of the hypocenter used to interpret the subsurface model of the research area.
Pelatihan Penggunaan Instrumen Tes Skill Numerik Sebagai Upaya Peningkatan Kecepatan dan Ketepatan Berhitung Peserta Didik Sekolah Dasar Negeri 5 Suwawa Mohamad, Wahyu Mu’zizat; Hermanto, I Made; Jayadi, Harsano; Meidji, Icha Untari
Journal Of Khairun Community Services Vol 4, No 2 (2024): Journal Of Khairun Community Services
Publisher : Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/jkc.v4i2.9134

Abstract

Pelatihan penggunaan instrumen tes skill numerik dilaksanakan untuk meningkatkan kecepatan dan ketepatan berhitung siswa di SDN 5 Suwawa, yang masih menunjukkan kesulitan dalam menyelesaikan soal berhitung sederhana secara cepat dan akurat. Pengabdian Kepada Masyarakat (PKM) ini bertujuan untuk membantu siswa mengembangkan keterampilan numerik dasar yang esensial bagi pembelajaran matematika dan bidang ilmu lainnya. Pelaksanaan pelatihan dilakukan dalam Program Kampus Mengajar 7 (KM 7) Tahun 2024, melibatkan mahasiswa dan guru dengan metode tatap muka di ruang kelas. Tahapan pelatihan mencakup penjelasan teori, simulasi soal berhitung, dan permainan numerik yang edukatif dan interaktif untuk meningkatkan minat siswa. Hasil evaluasi menunjukkan bahwa siswa mengalami peningkatan signifikan dalam kecepatan dan ketepatan berhitung setelah mengikuti pelatihan. Selain berdampak positif pada siswa, pelatihan ini juga membantu guru dalam memonitor dan menyesuaikan pendekatan pembelajaran matematika berdasarkan kebutuhan individu siswa. Kesimpulannya, penggunaan instrumen tes skill numerik terbukti efektif dalam meningkatkan keterampilan berhitung siswa sekaligus menjadi alat bantu evaluasi bagi guru dalam pembelajaran numerik yang lebih terarah dan berkelanjutan.
Kajian Model Hidrodinamika Sebaran Pola Arus Permukaan di Teluk Palu Meidji, Icha Untari; Demulawa, Meilan; Rifai, Rusni R.
KUANTUM: Jurnal Pembelajaran dan Sains Fisika Vol 3 No 1 (2022): KUANTUM: Jurnal Pembelajaran dan Sains Fisika (Edisis Januari - Juni 2022)
Publisher : Program Studi Pendidikan Fisika STKIP Kie Raha Ternate

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.7095400

Abstract

Penelitian mengenai pola arus di Teluk Palu sangat jarang dilakukan, padahal perairan ini merupakan daerah potensi strategis secara ekonomi. Studi mengenai pola arus Teluk Palu dilakukan dengan memanfaatkan model Coherens menggunakan Bahasa pemrograman fortran dengan mengabaikan gaya pembangkit angin sebagai pembangkit arus. Hasil penelitian menunjukkan bahwa arus pada Teluk Palu bervariasi baik arah maupun kecepatannya. Besar kecepatan arusnya berkisar antara 0,01 m/s hingga 0,33 m/s. Kondisi ini sangat dipengaruhi oleh pergerakan pasang surut baik saat purnama maupun perbani. Model pola arus laut permukaan di Teluk Palu ini diharapkan dapat bermanfaat bagi pembangunan dan pengembangan sekitar area teluk, bagi masyarakat dan juga bermanfaat bagi penelitian-penelitian selanjutnya
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.
Co-Authors Abd Wahidin Nuayi Abdul Mukaddas Abdul Mukaddas Abdullah Ahmad Zainuri Ahmadi, Haerul Akuba, Kisman 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 Firman Firman Fiska Tobamba Gafur, Nurfitri Abdul 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 Khan, Mikail Gabriel Khan Kurniasari, Septiana Kusmayancu, Cucu Lapananda, Nuraliva F.P Latief, Muh. Fachrul Lukman Samatowa Mamonto, Yusril Mahendra Masruroh Masruroh Meilan Demulawa Moch Rio Pambudi Moh Dahlan Th Musa Mohamad Ramdhan Mohamad, Wahyu Mu’zizat Muh. Abduh Muh. Fachrul Latief Muhammad Fawzy Ismullah Massinai Muhammad Yunus Muhammad Yunus Mursalin . Nalle, Merpati Teodoris Ninasafitri, Ninasafitri Nurhayati Paputungan, Devi Triana Rachman, Gazali Rifai, Rusni R Sismanto Sismanto Supu, Idawati Tang, Basyri Yadi Tang, Bunga Widi Atmoko Widi Atmoko Widi Atmoko Windi Lestari Yudoyono, Susilo Yunginger, Raghel Yunginger Yusniati H. Muh. Yusuf Yutdam Mudin