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All Journal JOURNAL ONLINE OF PHYSICS PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Jurnal FisTa : Fisika dan Terapannya
Ely, Sufilman
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Agriculture, Biological Sciences & Forestry Astronomy Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Physics Public Health Social Sciences

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IDENTIFIKASI FASA DAN MIKROSTRUKTUR SERBUK ZIRKONIA (ZrO2) BERBAHAN DASAR PASIR ZIRKON ALAM Akyuwen, Frandy; Ely, Sufilman; Silahooy, Stevi
JOURNAL ONLINE OF PHYSICS Vol. 10 No. 1 (2024): JOP (Journal Online of Physics) Vol 10 No 1
Publisher : Prodi Fisika FST UNJA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jop.v10i1.36422

Abstract

FORMATION KINETICS OF GREEN SILVER NANOPARTICLES USING GNETUM GNEMON L. LEAF AND FRUIT EXTRACT AS BIOREDUCTORS Ely, Sufilman; Patty, Philiphus J.; Hutagalung, Robert
JOURNAL ONLINE OF PHYSICS Vol. 10 No. 2 (2025): JOP (Journal Online of Physics) Vol 10 No 2
Publisher : Prodi Fisika FST UNJA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jop.v10i2.41704

Abstract

Program Edukasi Prevensi Longsor Lereng sebagai Aplikasi Teknologi Bioengineering: Slope Landslide Prevention Education Program as an Application of Bioengineering Technology Souisa, Matheus; Nanlohy, Pieldrie; Sapulete, Sisca Madonna; Elake, Alexander Yosep; Manuhutu, Fredrik; Lebang, Annamaintin Kobong; Ely, Sufilman
PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Vol. 10 No. 9 (2025): PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat
Publisher : Institute for Research and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/pengabdianmu.v10i9.10032

Abstract

Climate change has triggered increased rainfall intensity and exacerbated the risk of disasters, especially landslides in the tropical hilly areas of Ambon Island. This community service activity was carried out in Karang Panjang Village, Sirimau District, Ambon City, to increase public awareness and knowledge about the impacts of climate change and preventive strategies for slope landslides. Activities include geoscience and bioengineering-based education and direct practice of planting vetiver grass (Chrysopogon zizanioides) as a natural solution for slope prevention. The evaluation results showed an increase in public understanding by 24.7% after participating in a series of socialization activities. In addition to gaining knowledge about the causes and dynamics of slope stability, residents were also equipped with skills to plant and maintain vetiver independently and sustainably. This program proves that an educational and participatory approach can be a strong foundation for community-based disaster mitigation.
Karakterisasi Elastisitas Karet Alam dari Castilla elastica melalui Uji Tarik Beban Bertahap Ely , Sufilman; Akyuwen, Frandy; Kaloari, Ruth Meisye
Jurnal FisTa Fisika dan Terapannya Vol 6 No 2 (2025): OKTOBER
Publisher : Fakultas Matematika Ilmu Pengetahuan Alam dan Kebumian, Universitas Negeri Manado

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Abstract

This study aims to test the elasticity properties and calculate the elastic modulus (Young's modulus) of natural rubber produced by Castilla elastica trees that grow naturally in Hila Village, Ambon Island. This plant is an alternative source of rubber that has not been widely utilized in Indonesia. The research was conducted using quantitative experimental methods in a laboratory where sap from the Castilla elastica tree was tapped, dried, and formed into uniform-sized rubber strips. Elasticity tests were carried out by applying gradual loads to each sample and measuring the increase in length due to strain. The results showed that rubber from Castilla elastica has high tensile strength but a relatively low elastic modulus, ranging from 5,416 to 16,263 N/m². This value is significantly lower than the elastic modulus of natural rubber from Hevea brasiliensis, which typically ranges between 0.32–0.42 MPa. The decrease in modulus with increasing load indicates the non-linear elastic behavior of the material. These results suggest that rubber derived from Castilla elastica is soft and has potential applications in lightweight elastic products. These characteristics indicate its potential utilization as a base material for the fabrication of lightweight elastomeric products such as flexible protective membranes, elastic adhesive coatings, soft sleeves or gaskets, and lightweight vibration-damping pads in mechanical systems.
KARAKTERISASI MINERALOGI LUMPUR BOR DI DESA KUFAR MENGGUNAKAN XRF DAN XRD BERBASIS METODE RIETVELD Ely, Sufilman; kaloari, Ruth Meisye; Akyuwen, Frandy; Risakotta, Mirtha Yunitha Sari
JOURNAL ONLINE OF PHYSICS Vol. 11 No. 2 (2026): JOP (Journal Online of Physics) Vol 11 No 2
Publisher : Prodi Fisika FST UNJA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jop.v11i2.51180

Abstract

Lumpur di Desa Kufar, Maluku, Indonesia, merupakan lumpur hasil pengeboran minyak yang berpotensi sebagai sumber mineral sekunder bernilai ekonomi. Penelitian ini bertujuan mengkarakterisasi komposisi unsur, struktur kristal, dan fasa mineral lumpur tersebut melalui pendekatan terpadu X-Ray Fluorescence (XRF) dan X-Ray Diffraction (XRD), yang dianalisis menggunakan perangkat lunak Match 3!, Rietica, dan MAUD berbasis metode Rietveld refinement. Analisis XRF menunjukkan dominasi kalsium (Ca, 57,9 wt.%), diikuti oleh besi (Fe, 21 wt.%) dan silikon (Si, 12 wt.%), dengan unsur minor seperti Cr, V, Ba, dan Mn masing-masing <1 wt.% jauh di bawah ambang toksisitas lingkungan. Analisis XRD mengidentifikasi lima fasa mineral utama: kalsit (CaCO₃), kuarsa (SiO₂), aluminium oksida, ulvoespinel, dan grimaldi deuterate. Refinement kuantitatif dengan Rietica mengungkap dominasi kalsit sebesar 81,63%, diikuti kuarsa (6,62%), aluminium oksida (4,49%), ulvoespinel (3,89%), dan grimaldi deuterate (3,37%), dengan nilai Goodness of Fit (GoF) = 1,27 yang menunjukkan kesesuaian tinggi antara model dan data eksperimen. Analisis ukuran kristal menggunakan MAUD menghasilkan kristal kalsit berukuran 137 nm dan kuarsa 94 nm, sedangkan fasa minor tidak dapat dikuantifikasi akibat intensitas difraksi yang rendah. Temuan ini menunjukkan bahwa lumpur bor di Desa Kufar merupakan sumber CaCO₃ alami yang aman dan berpotensi dimanfaatkan sebagai bahan baku dalam industri.
Co-Authors Akyuwen, Frandy Alexander Yosep Elake Fredrik Manuhutu, Fredrik Kaloari, Ruth Meisye Lebang, Annamaintin Kobong Matheus Souisa Patty, Philiphus J. Pieldrie Nanlohy Risakotta, Mirtha Yunitha Sari Robert Hutagalung Sapulete, Sisca Madonna Silahooy, Stevi