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All Journal Indonesian Physical Review Jurnal Fisika dan Terapannya
Lorna, Lorna
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Education Physics

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IDENTIFIKASI JENIS DAN ARAH SESAR AKTIF DI WILAYAH SULAWESI SELATAN MENGGUNAKAN METODE HIPOCENTER DAN CENTROID (H-C) Lorna, Lorna; Rahmaniah, Rahmaniah; Wahyuni, Ayusari
JFT : Jurnal Fisika dan Terapannya Vol 6 No 1 (2019): Juni
Publisher : Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1005.334 KB) | DOI: 10.24252/jft.v6i1.10181

Abstract

This study aims to identify the direction and type of active faults in the region of South Sulawesi by using the hypocenter and Centroid (HC). The data used is secondary data obtained from the hypocenter USGS, IRIS, GEOFON website and the data obtained from BMKG centroid that is processed using the focus mechanism to coordinate limit  LS –  BT. According to the research by the method of HC obtained by the type and direction of the active faults in the region I with the type of normal foult directed N6E/32 south-north , region II with the type of strike-slip fault directed N358E/83  north-south, Region III with the type of oblique fault directed N74E/16  southwest-northeast, Region IV with the type of normal foult directed  N109E/56 northwest- southeast and in the region of V with the type of strike-slip fault directed N332E/50 southeast-northwest.
THE EFFECT OF ADDITIONAL IRON SAND ON THE CRYSTAL SIZE AND STRAIN OF ZnO Lorna, Lorna; Mutmainna, Inayatul; Tahir, Dahlang; Gareso, Paulus L
Indonesian Physical Review Vol. 5 No. 3 (2022)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v5i3.178

Abstract

This study observed the effect of the addition of iron (Fe) doping on the characteristics of Zinc Oxide (ZnO) nanoparticles.Zn(1-x)Fe(x) with various concentration of x = 0, 2, 4, 6, 8, and 10% was prepared by coprecipitation method using Sodium Hydroxide and Hydrogen Chloride. The effect of adding Fe doping on ZnO was characterized using X-ray Diffraction (XRD) to determine the crystal structure, size, and strain. The analysis result confirmed the absence of additional impurity peaks in the ZnO nanoparticles. Fe doping affects the Zn lattice structure. X-ray diffraction (XRD) study confirms the crystalline Hexagonal structure. Crystal size analysis using Debye Scherrer, UDM, and Halder-Wagner method obtained varying crystal sizes with variations in the concentration of Fe ranging from 19.89-44.72 nm. The crystal size and strain obtained from the Debye Scherrer method are smaller
Co-Authors Dahlang Tahir Gareso, Paulus L Inayatul Mutmainna, Inayatul Rahmaniah, Rahmaniah Wahyuni, Ayusari