Article Per Year (5 Year)
p-Index From 2020 - 2025
0.61
P-Index
This Author published in this journals
All Journal Journal of Earth and Marine Technology (JEMT) Jurnal Pijar MIPA ARembeN
Jayatri, Adella Ulyandana
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Energy Industrial & Manufacturing Engineering Mathematics Physics Transportation

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search

 1 
Preliminary Research for Fault Identification as Disaster Mitigation in Sumbawa Besar Using Geophysics and Geology Methods Hayatuzzahra, Sayidatina; Jayatri, Adella Ulyandana; Desiasni, Rita
Journal of Earth and Marine Technology (JEMT) Vol 4, No 2 (2024)
Publisher : Lembaga Penelititan dan Pengabdian kepada Masyarakat - Institut Teknologi Adhi Tama Suraba

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jemt.2024.v4i2.5704

Abstract

Faults are conditions under which rocks are displaced from their original positions. Its presence is closely related to its high tectonic activity. Fault movement can trigger earthquake disasters. Therefore, various studies on faults are important for carrying out disaster mitigation efforts. This study aims to identify the existence of faults in Sumbawa Besar as a disaster mitigation effort. The method used was a combination of geophysical methods and geological field observations. Geophysical methods include the average shear wave method (VS30) and the gravity method. The geological method consists of direct geological observations (geomorphology and structural geology) in the research area. The results of research based on geophysical methods, namely the gravity method, showed that in the research area, there were indications of thrust faults, which were then strengthened by VS30 analysis, which showed the existence of weak zones along the suspected fault lines. The results of field data collection and geological data analysis show that no surface fault characteristics were found in the research area.
Fabrication of Fe3O4/PEG 4000/Oleic Acid Ferrofluids on Crystal Structure and Magnetic Properties Using Rhee Sumbawa Iron Sand Bahtiar, Syamsul; Islam, Izzul; Jayatri, Adella Ulyandana; Widyawati, Fauzi; Yanuar, Emsal
Jurnal Pijar Mipa Vol. 20 No. 1 (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.v20i1.8108

Abstract

The fabrication of ferrofluid using Fe3O4 nanoparticles synthesized from Rhee Sumbawa iron sand has been successfully carried out. This fabrication was conducted to study the crystal structure characteristics and magnetic properties of the ferrofluid from Rhee iron sand. The fabrication used the co-precipitation method at room temperature to synthesise Fe3O4 nanoparticles. In contrast, the ferrofluid fabrication employed a magnetic stirrer with the addition of PEG 4000/Oleic Acid as a surfactant. The structure and magnetic characteristics of the Fe3O4/PEG 4000/AO ferrofluid will be investigated in this work. The results of the XRF characterization show an Fe content of 91.73%, indicating that the purity of Fe has been successfully increased using a permanent magnet separation method. The XRD characterization results show the formation of a cubic crystal system with lattice parameters a=b=c = 9.3797 Å, α=β=γ = 90°, and the crystal size obtained from the refinement is 8.42 nm. The TEM characterization results indicate that the morphology of the nanoparticles is spherical with a particle size of 7.34 nm. The VSM characterization results obtained the ferrofluid magnetization value in the 0.08–0.34 emu/g range.
Penentuan Intensitas Longsor Sebagai Dasar Untuk Meningkatkan Fasilitas Kesehatan Dalam Mengurangi Risiko Bencana Longsor di Desa Lenangguar Retongga, Nofrohu; Hayatuzzahra, Sayidatina; Safitra, Roby Mardiyan; Desiasni, Rita; Nuraga, Welly Handa; Jayatri, Adella Ulyandana
ARembeN Jurnal Pengabdian Multidisiplin Vol. 3 No. 1 (2025): ARemBeN Edisi Juni
Publisher : CV. Ro Bema

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69688/aremben.v3i1.115

Abstract

Tujuan dari pengabdian adalah mengetahui Tingkat intensitas longsor di sepanjang jalan Lenangguar – Lunyuk dan mengetahui kelengkapan fasilitas kesehatan serta kesiapan Puskesmas Lenangguar dalam menangani korban akibat bencana longsor sehingga dapat meminimalisir risiko bencana Longsor. Pengabdian ini terdiri dari empat tahap, yaitu: Studi literatur digunakan sebagai acuan dasar untuk memperkuat latar belakang dalam pengabdian ini, penentuan intensitas longsor di sepanjang Jalan Lenangguar – Lunyuk, wawancara Kepala Puskesmas Lenangguar dan salah satu Dokter yang bertugas untuk mengetahui Tingkat fasilitas dan jumlah tenaga medis di Puskesmas Lenangguar, sosialisasi intensitas longsor, kesiapan dan kelengkapan puskesmas lenangguar dalam menghadapi bencana longsor kepada Kepala Desa Lenangguar untuk pemberitahuan kepada Masyarakat. Puskesmas Lenangguar hanya memiliki 2 Dokter, 12 Perawat, 1 Ambulan, Obat-obatan cukup terbatas, dan juga keterbatasan alat-alat medis sehingga hanya bisa menangani luka-luka lecet. Intensitas longsor yang cukup banyak dan sering terjadi saat musim hujan di Jalan Lintas Lenangguar – Lunyuk sehingga Puskesmas Lenangguar direkomendasikan untuk meningkatkan fasilitas sehehatan, tim medis, melakukan pelatihan manajemen bencana dan disaster plan sehingga mengurangi risiko bencana longsor dan meningkatkan ketahanan masyarakat dalam menghadapi bencana.
Co-Authors Bahtiar, Syamsul Fauzi Widyawati Hayatuzzahra, Sayidatina izzul islam Nofrohu Retongga Nuraga, Welly Handa Rita Desiasni Safitra, Roby Mardiyan Yanuar, Emsal