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All Journal International Journal of Evaluation and Research in Education (IJERE) Jurnal Silvikultur Tropika (JST) Paduraksa : Jurnal Teknik Sipil Universitas Warmadewa JPG (Jurnal Pendidikan Geografi) Info-Teknik EnviroScienteae Communications in Science and Technology Civil and Environmental Science Journal (CIVENSE) Jurnal GEOSAPTA Cerucuk. Prodi S1 T. Sipil. Buletin Profesi Insinyur Jurnal Teknologi Berkelanjutan Jurnal Pengabdian Ilung (Inovasi Lahan Basah Unggul) JOURNAL OF WETLANDS ENVIRONMENTAL MANAGEMENT JURNAL REKAYASA KIMIA & LINGKUNGAN
Yulian Firmana Arifin
Universitas Lambung Mangkurat
Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Social Sciences Transportation Other

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Journal : Communications in Science and Technology

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Volume change in compacted claystone-bentonite mixtures as affected by the swamp acidic water Arifin, Yulian Firmana; Arsyad, Muhammad; Monica, Jeane; Agus, Setianto Samingan
Communications in Science and Technology Vol 6 No 2 (2021)
Publisher : Komunitas Ilmuwan dan Profesional Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21924/cst.6.2.2021.540

Abstract

Water containing sulfuric acid with a pH up to 3 is prevalent in swampy areas. This article focuses on the effects of the solution on volume change of compacted claystone?bentonite mixture. Claystone was obtained from Banjarbakula landfill and it was mixed with bentonite on a 5, 10, 15, and 20% dry mass basis. Samples possessed the dry density of 16 kN/m3 and moisture content of 10, 15, and 20%. The odometer examined the samples' swelling and compression in both pure and acidic water. Characterization tests i.e., XRF, XRD, and FTIR were also performed. The results showed that swelling and compression were affected by initial moisture and bentonite content. Samples with a moisture content of 20% showed compression in acidic water. Acidic water changed the water absorbed on the clay surface without altering the mineral. A mixture containing 20% bentonite compacted to optimum moisture content was found at best in reducing the acidic water effects.
Optimizing ground control points for UAV photogrammetry: A case study in slope stability mapping Ridha, Muhammad Hafizhir; Arifin, Yulian Firmana; Abdi, Ari Surya
Communications in Science and Technology Vol 10 No 1 (2025)
Publisher : Komunitas Ilmuwan dan Profesional Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21924/cst.10.1.2025.1627

Abstract

This study investigated the effect of Ground Control Point (GCP) distribution on the accuracy of UAV-based slope mapping and stability analysis. Three GCP configurations—top-only, vertical, and diagonal—were tested. Accuracy was evaluated using UAV photogrammetry and compared to GPS geodetic data. The vertical GCP setup produced the highest accuracy, reducing total RMSE by 89.6% (from 52.93 mm to 5.50 mm). The diagonal configuration, while being slightly less accurate (61.26 mm RMSE), improved spatial coverage. Slope stability analysis using the finite element method (FEM) confirmed the reliability of the vertical setup for slope assessment. These results demonstrated that optimizing GCP layout could significantly improve model precision while reducing fieldwork. This work contributes to efficient and accurate slope monitoring with fewer GCPs, making it suitable for large-scale geotechnical applications. Future research will focus on applying these configurations to vegetated and more complex terrains and integrating automation for broader and scalable implementation.
Co-Authors Abdi, Ari Surya Achmad Kusairi Samlawi Adi Saputra Adriani Adriani Agus, Setianto Samingan Akram, Muh. Chairil Fachrurazie Chairul Irawan Dewi Sri Susanti Ellyn Normelani Fakhrur Razie Gusti Ihda Majaya Hanifah Mahat Iryanti Fatyasari Nata, Iryanti Fatyasari Lailan Ni`mah Markawie Markawie Marwaji , Muhammad An Al Mawarji, Muhammad An Al Meilana Dharma Putra Mikhael, Peredrik F. Mira Asnia Mohmadisa Hashim Monica, Jeane Muhammad An Al Mawarji Muhammad Hafizhir Ridha Muhammad Noor Azhari Muhammad Nur Arfiandoyo MUHAMMAD RIZAL Nasir Nayan Nasruddin Nasruddin Norma Yuni Kartika Nurhakim Nurhakim Pandu Yuda Permana Reinaldy, Wilmar Ridha, Muhammad Hafizhir Rizqi Arrahman Rosalina Kumalawati Rosmasari Marisa Saiyidatina Balkhis Norkhaidi Siti Hamidah Siti Hamidah Siti Hamidah Siti Helmyati Taufik Hidayat Yazid Saleh Yudi Firmanul Arifin Yusanto Nugroho Yuswinda Febrita