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All Journal Jurnal FisTa : Fisika dan Terapannya
Cyrke Adfie Netty Bujung
Program Studi Geofisika, Universitas Negeri Manado, Kabupaten Minahasa, 95618, Indonesia
Astronomy Electrical & Electronics Engineering Energy Materials Science & Nanotechnology Physics

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Pemanfaatan Karbon Aktif dari Cangkang Kemiri sebagai Elektroda Superkapasitor Kezia Kawulur; Heindrich Taunaumang; Sixtus Iwan Umboh; Cyrke Adfie Netty Bujung; Kamaruddin
Jurnal FisTa Fisika dan Terapannya Vol 6 No 2 (2025): OKTOBER
Publisher : Fakultas Matematika Ilmu Pengetahuan Alam dan Kebumian, Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.67006/fista.v6i2.475

Abstract

The energy crisis is one of the major challenges facing the world today, triggered by over-reliance on fossil energy sources, rapid population growth, and the threat of climate change. One technology that attracts attention is supercapacitors. The purpose of this study was to determine the effect of carbon activation using KOH with varying concentrations on electrical conductivity as a supercapacitor electrode. By using dehydration method, carbonization at 500℃. The chemical activation process is treated with variations in KOH concentration of 6M, 7M, 8M with physical activation in a furnace at 750℃. The test results of conductivity and density values show that the comparison with the increase in KOH concentration results in an increase in conductivity of 0.1012 S/m, 0.1694 S/m, and 0.3282 S/m. Accompanied by a decrease in density of 9.8810 A/
Analisis Spasial dan Temporal Temperatur Permukaan Gunung Api Ruang Menggunakan Citra Satelit Landsat 8 Tirs Believe Vidnel Rampi; Cyrke Adfie Netty Bujung; Alfrie Musa Rampengan
Jurnal FisTa Fisika dan Terapannya Vol 7 No 1 (2026): APRIL
Publisher : Fakultas Matematika Ilmu Pengetahuan Alam dan Kebumian, Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.67006/fista.v7i1.662

Abstract

Indonesia is the country with the most mountains. The number of volcanoes in Indonesia is around 500. Of these, 129 are active volcanoes. This study aims to map the distribution of temperature and determine the direction of surface heat flow of Ruang Volcano before an eruption. This research was conducted by temporally analyzing the temperature distribution in Ruang Volcano to predict the direction of geological structure openings in the area using remote sensing methods. The analysis was carried out temporally using thermal infrared band 10 image data to determine the direction of heat flow according to the resulting distribution map. The analysis results show that the surface temperature distribution map of Ruang Volcano before the eruptions in 2015, 2019, and 2024 shows a similar pattern. Based on the surface temperature distribution map of Ruang Volcano, the direction of flow before the eruption comes from the northeast.
Co-Authors Alfrie Musa Rampengan Believe Vidnel Rampi Heindrich Taunaumang Kamaruddin Kezia Kawulur Sixtus Iwan Umboh