Article Per Year (5 Year)
p-Index From 2020 - 2025
0.61
P-Index
This Author published in this journals
All Journal JIFP (Jurnal Ilmu Fisika dan Pembelajarannya) Indonesian Journal of Community Services Cel Eksplorium : Buletin Pusat Pengembangan Bahan Galian Nuklir
Dewi, Soraya Tiana
Unknown Affiliation
Humanities Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Education Energy Engineering Materials Science & Nanotechnology Physics Other

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

Found 3 Documents
Search

 1 
Identifikasi Cekungan Sumatera Tengah Berdasarkan Data Anomali Geomagnetik Reduce to The Pole dan Metode Half-Slope Dewi, Soraya Tiana; Safira, Ayu; Valentino Manurung, Andro; Rasimeng, Syamsurijal; Rustadi
Jurnal Ilmu Fisika dan Pembelajarannya (JIFP) Vol 8 No 2 (2024): Jurnal Ilmu Fisika dan Pembelajarannya (JIFP)
Publisher : Program Studi Pendidikan Fisika, UIN Raden Fatah Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19109/vbe9t550

Abstract

The Central Sumatra Basin is a back arc basin which is one of the largest oil-producing basins in Indonesia. This study aims to analyze the magnetic anomaly in the Central Sumatra Basin using the Reduce to Pole and Half-Slope methods. The methods in this study include filtering magnetic data from Sumatran geological data, making a map of the total magnetic field anomaly, and carrying out a reduction transformation to the poles in the form of a monopole, followed by 3 slices of RTP data slices, then calculating Half-Slope using RTP data slices. using Matlab software. The total magnetic field value before Reduce to Pole (RTP) was in the range of -90 to 60 nT. The value after Reduce to Pole (RTP) is in the range of -140 to 190 nT. In the results of slice 1, the average depth value is 59.2 km. Slice 2 results obtained an average depth value of 35.2 km. The average depth value on slice 3 is 42.8 km. Determine the basin boundary and slice the data in the basin boundary area for analysis using the half-slope method. Obtained an average value of depth at the boundary of the Central Sumatra basin of 19.6 km.
Socialization and Making Briquettes from Rice Husk Waste and Tapioca Flour in Braja Indah Village, Braja Selebah Subdistrict, East Lampung Regency Sahyani, Aditya Anugrah; Rifqi, Muhammad Fakhri; Putri Ilda Damayanti; Nurjanah, Umi Anisa; Dewi, Soraya Tiana; Prastika, Myshel Wihasna; Prastika, Casrini
Indonesian Journal of Community Services Cel Vol. 3 No. 2 (2024): Indonesian Journal of Community Services Cel
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70110/ijcsc.v3i2.66

Abstract

Briquettes are solid fuels made from waste materials. Rice husks serve as the primary raw material for briquette production. This article provides an overview of a training program aimed at introducing the production of briquettes from rice husks and tapioca flour in Braja Indah Village. The program was carried out in three stages: the survey process, product preparation, and training activities. This article adopts a qualitative approach with a descriptive-explanatory model. The outcome of the program was the production of briquettes capable of igniting successfully. Through this training, the community gained new insights and information on managing rice husk waste into more beneficial products, thereby reducing rice husk waste that could otherwise contribute to environmental pollution. This initiative was a collaborative effort between university students participating in community service (KKN) and the local government of Braja Indah Village to promote the program.
Evaluation of Geothermal Prospects in The Patuha Field Based on Derivative Analysis and 3D Inversion of Gravity Anomaly Dewi, Soraya Tiana; Sarkowi, Muh; Wibowo, Rahmat Catur
EKSPLORIUM Vol. 46 No. 1 (2025): MAY 2025
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/eksplorium.2025.11327

Abstract

The Patuha geothermal field has the potential to be developed as a source of energy for power generation. This study was conducted to evaluate the Patuha geothermal system based on Global Gravity Model Plus Gravity data. The study refers to the Bouguer Anomaly value, which is the difference between the observed gravity value (gobs) and the theoretical gravitational value (gn), or the sum of corrections applied to the gravity measurement. This difference reflects variations in mass density between the survey area and its surroundings, occurring in both lateral and vertical directions. Derivative analysis and 3D inversion of gravity anomalies are used to identify the presence of faults, reservoir prospects, cap rocks, and heat sources. The Complete Bouguer Anomaly map displays decreasing values from southwest to northeast. The high anomaly coincides with Mount Patuha, indicating that this feature may become the heat source. The 3D inversion of the gravity anomaly yielded a density range of 2 g/cm³ to 3 g/cm³. The reservoir prospect is controlled by the graben structure and is located in the Ciwidey Crater. It has a density of 2.5 g/cc, with an area of ​​130 km2, located at a depth of 2200 meters above MSL to 700 meters below MSL. Cap rock crosses along the Cibuni Crater, White Crater, and Ciwidey Crater with a density of 2.66 g/cc at a depth of 2300 meters to 800 meters above MSL. The heat source is shallow and originates from Mount Patuha, with a density of 3 g/cc at a depth of 1500 meters above MSL and 4600 meters below MSL.
Co-Authors Ayu Safira, Ayu Muh Sarkowi Nurjanah, Umi Anisa Prastika, Casrini Prastika, Myshel Wihasna Putri Ilda Damayanti Rifqi, Muhammad Fakhri Rustadi ., Rustadi Sahyani, Aditya Anugrah Syamsurijal Rasimeng Valentino Manurung, Andro Wibowo, Rahmat Catur