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All Journal Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics Jurnal Sains dan Pendidikan Fisika Teknosains: Media Informasi Sains dan Teknologi Jurnal Fisika Unand Jurnal Geosaintek JOURNAL ONLINE OF PHYSICS Vidya Karya Jurnal Geocelebes JPF (Jurnal Pendidikan Fisika) Universitas Islam Negeri Alauddin Makassar JURNAL INSTEK (Informatika Sains dan Teknologi) Jurnal Fisika dan Terapannya Tolis Ilmiah: Jurnal Penelitian Journal of Health, Education, Economics, Science, and Technology (J-HEST) Einstein's: Research Journal of Applied Physics Jurnal Geosaintek
Muh. Said L
Universitas Islam Negeri Alauddin
Agriculture, Biological Sciences & Forestry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Health Professions Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Physics Social Sciences Other

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PENGARUH VARIASI KETEBALAN DAN NILAI KOEFISIEN ABSORBSI UNTUK CACAHAN HALUS DAN CACAHAN KASAR PAPAN AKUSTIK DARI BATANG KELOR (MORINGA OLEIFERA LAM) Fitria Jasman; Sahara Sahara; Muh Said L; Hernawati Hernawati
JFT : Jurnal Fisika dan Terapannya Vol 8 No 2 (2021): DESEMBER
Publisher : Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/jft.v8i2.23557

Abstract

This study aims to determine the effect of thickness on the absorption coefficient of the acoustic board made from Moringa stems (Moringa Oleifer Lam). The method used in this research is to make an acoustic board with two types of samples, namely finely chopped samples and coarse chopped samples with a thickness of 0.70 cm, 1.00 cm and 1.20 cm, and measuring the absorption coefficient with variations in the thickness of the acoustic board. The frequency values used are 300 Hz, 500 Hz, 750 Hz, 900 Hz, 1000 Hz and 3000 Hz. Based on the results of the study, it was found that the sound absorption coefficient of acoustic material with variations in thickness indicated that the finely chopped and coarsely chopped samples had an effect on increasing the thickness of a sample, where the thicker the sample, the lower the absorption coefficient value. That meets ISO standards sound absorption coefficient value for fine pieces is at a frequency of 500 Hz with an absorption coefficient of 0.35, 0.30, and 0, 019, for 500 Hz with absorption coefficients 0.34, 0.27, and 0.30 while for 900 Hz the absorption coefficient values are 0.32, 0.24, and 0.20.
MICRO-ZONATION STUDY OF POTENTIAL SEISMIC HAZARDS BASED ON PEAK GROUND ACCELERATION (PGA) VALUE IN THE NORTH KONAWE OFFICE AREA Prasepvianto Estu Broto; Nidya Lena Fitriah Laksana; Muh. Said L; Hernawati; Sefrilita; Sefrilita Risqi Adikaning Rani Rani
JOURNAL ONLINE OF PHYSICS Vol. 8 No. 1 (2022): JOP (Journal Online of Physics) Vol 8 No 1
Publisher : Prodi Fisika FST UNJA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jop.v8i1.20232

Abstract

The purpose of this study was to determine the potential for seismic hazard based on the peak ground acceleration value in the North Konawe office area. This study uses the HVSR method to obtain the dominant frequency, amplification factor, dominant period, seismic vulnerability index and Peak Ground Acceleration. The results obtained from the microzonation of the distribution of the dominant frequency value with a high category were found at 5 measurement points, the amplification factor with a low category was found at 1 measurement point, the dominant period with a low category was found at 6 measurement points and the seismic vulnerability index with a low category was found at 5 points. measurement. Overall the research area is included in the level of seismic hazard risk, not high potential but in the low category. While the microzonation of the distribution of PGA values ​​obtained values ​​ranging from 23,2381-23,3231 gal which belong to the low seismic hazard risk level. Where it can be described in this area the earthquake that occurred can be felt by many people but caused damage. The light objects that were hung swayed and the windows shook. So it can be concluded that this research area is included in the category of low seismic hazard level
PEMETAAN RISIKO BENCANA TANAH LONGSOR DI KABUPATEN BARRU MENGGUNAKAN METODE PEMBOBOTAN PARAMETER DAN INARISK BNPB Muh Said Lanto; Dwi Nurfajriana Syam; Ayusari Wahyuni; Amirin Kusmiran
Jurnal Geosaintek Vol 8, No 3 (2022)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25023659.v8i3.14758

Abstract

Abstrak. Bencana alam tanah longsor umumnya terjadi di wilayah yang memiliki sisi (bidang) kemiringan seperti bukit, pegunungan, dan wilayah lereng. Kabupaten Barru merupakan salah satu daerah yang rawan akan risiko longsor karena kondisi topografi yang berbukit-bukit dan berada di daerah pegunungan dengan kondisi tanah yang cukup rentan terhadap terjadinya tanah longsor. Penelitian ini bertujuan memetakan risiko longsor menggunakan metode pembobotan parameter dan Inarisk BNPB dan menganalisis daerah yang memiliki tingkat risiko longsor serta membandingkan kedua metode tersebut. Parameter yang digunakan dalam metode pertama adalah pembobotan parameter yaitu kemiringan lereng, penggunaan lahan, jenis tanah dan geologi berdasarkan data informasi BAPPEDA Kabupaten Barru tahun 2021 dan data curah hujan dari BMKG wilayah Maros Sulawesi Selatan (2017-2021). Metode kedua adalah inarisk BNPB menggunakan data spasial melalui website Inarisk BNPB. Hasil penelitian menunjukkan bahwa wilayah di Kabupaten Barru dikategorikan sebagai daerah dengan kondisi tanah longsor agak rawan pada daerah perbukitan dan pegunungan, sedangkan pada bagian dataran rendah sedikit rawan. Sebaran risiko longsor daerah berdasarkan metode pembobotan parameter diklasifikasikan tiga kelas, yaitu tinggi: 2.335,64 ha tersebar di Kecamatan Pujananting, Tanete Riaja, dan Mallusetasi; sedang: 114.696,43 ha tersebar di seluruh Kabupaten Barru; dan rendah: 726,56 ha tersebar di Soppeng Riaja dan Balusu. Metode ini lebih akurat dalam merepresentasikan kondisi daerah rawan longsor dibandingkan metode Inarisk BNPB. Berdasarkan hasil penelitian, maka pemerintah setempat dapat melakukan strategi kebijakan dalam menangani daerah yang teridentifikasi rawan longsor dan pihak masyarakat lebih peduli terhadap upaya penanggulangan rawan bencana.Kata Kunci: bencana rawan longsor; inarisk BNPB; pembobotan parameter; pemetaan risiko bencana  Abstract. Landslides natural disasters generally occur in areas that have slopes, in the form of mountains, hills and slope areas. Barru Regency is one of the areas that are prone to landslide risk due to hilly topography and is located in a mountainous area with soil conditions that are quite susceptible to landslides. This study aims to map the risk of landslides using the parameter weighting method and the BNPB Inarisk and analyze areas that have a level of landslide risk and compare the two methods. The parameters used in the first method are parameter weighting, namely slope, land use, soil type and geology based on information data from BAPPEDA Barru Regency in 2021 and rainfall data from the BMKG in the Maros region of South Sulawesi (2017-2021). The second method is the BNPB Inarisk, uses spatial data through the BNPB Inarisk website. The results showed that the area in Barru Regency was categorized as an area with slightly prone to landslides in hilly and mountainous areas, while in the lowlands it is a little prone. The distribution of regional landslide risk based on the parameter weighting method is classified into three classes, namely high: 2,335.64 ha spread out in Pujananting, Tanete Riaja, and Mallusetasi Districts; medium: 114,696.43 ha spread throughout Barru Regency; and low: 726.56 ha spread over Soppeng Riaja and Balusu. This method is more accurate in representing the condition of landslide-prone areas than the Inarisk BNPB method. Based on the results of the study, the local government can carry out policy strategies in dealing with areas identified as prone to landslides and the community is more concerned with disaster-prone management efforts. Keywords:  landslide prone disaster, inarisk BNPB, parameter weighting, disaster risk mapping
Analisis Kandungan Kalsium Karbonat (CaCO3) Batu Gamping Di Kelurahan Bontoa Kecamatan Minasate’ne Kabupaten Pangkajene Dan Kepulauan Ayu Annisa Amir; Muh. Said L.; Ayusari Wahyuni; Rahmaniah
JFT : Jurnal Fisika dan Terapannya Vol 9 No 2 (2022): DESEMBER
Publisher : Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/jft.v9i2.23565

Abstract

The research had been carried out with the aim of finding out and analyzing the quality of the calcium carbonate content (CaCO3) of limestone as a raw material for making marble. To determine the CaCO3 content, the method was using gravimetric method by weighing empty beaker mass parameter, and the mass of sample and beaker plus HCl 2N level as the final mass after the reaction. The used sample consist of two blocks, they were block one on the coordinate point of 4º48’-4º51’ LS and 119º35’-119º37’ BT and block two on the coordinate point of 4º47’-4º51’ LS and 119º37’-119º39’ BT. The sampling technique was using a chisel and hammer. The result of the research shows that the average of CaCO3 content at the two sampling points was obtained each of 85,530 % and 84,6897%. It is obtained that the level of CaCO3 in the limestone meets the Standar Industri Indonesia (SII) requirement, which is above 50% and it means that the sampling point in Bontoa village, Minasate’ne district, Pangkajene Regency and Island able to be used as marble raw material.
Identifikasi Zona Rawan Longsor Menggunakan Metode Geolistrik Resistivitas Di Desa Pao Kecamatan Tombolo Pao Kabupaten Gowa Muh. Adrian; Muh. Said L.; Fitriyanti
JFT : Jurnal Fisika dan Terapannya Vol 9 No 2 (2022): DESEMBER
Publisher : Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/jft.v9i2.29518

Abstract

This research aims to identify landslide-prone zones using the geoelectric resistivity method in Pao Village, Tombolo Pao District, Gowa Regency. The configuration used for data collection in the field is the Wenner-Schlumberger configuration using four the number of lines. The result of research indicates that the first line average is founded in each layer which is suspected to occur in a layer of soil and igneous rock in the form of lava with 2.10 Ωm- 12.7 Ωm in resistivity value. In the second line, the average is founded wet soil, dry soil and igneous rock with 1.26 Ωm – 11.1 Ωm in resistivity value. The third line average is an established layer of soil and lava with 2.18 Ωm – 6.51 Ωm in resistivity value. The fourth line is suspected to occur layer of soil and lava with 1.59 Ωm – 8.50 Ωm in resistivity value and 1.25 m – 15.9 m in depth. It can be concluded that the first and fourth lines, based on the resistivity value, are generated to occur in a layer of soil. Igneous rocks are supported by topography, slup reaching 30o – 35o. Meanwhile, the second and third lines do not happen landslide potential because the resistivity results contain igneous rock. Still, the topography, vegetation, and slup are not the landslide-prone category.
ANALISIS KECOCOKAN NILAI PGA METODE DONOVAN TERHADAP DATA ACCELEROGRAPH (STUDI KASUS GEMPA MAMUJU, 14 JANUARI 2021) Muh. Said L; Almubdy Siraj Ramadhan; Amirin Kusmiran; Ramadhan Priadi; Alamsyah
JOURNAL ONLINE OF PHYSICS Vol. 8 No. 2 (2023): JOP (Journal Online of Physics) Vol 8 No 2
Publisher : Prodi Fisika FST UNJA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jop.v8i2.21884

Abstract

Abstrak Penelitian ini bertujuan memetakan wilayah dengan risiko nilai percepatan tanah maksimum dan menganalisis kecocokan nilai metode perhitungan empiris dan data accelerograph pada kasus gempa di Mamuju 14 Januari 2021. Data yang digunakan adalah data kasus gempa di Mamuju 14 Januari 2021 magnitudo 5,9 yang diperoleh dari Badan Meteorologi, Klimatologi, dan Geofisika Stasiun Geofisika Gowa. Parameternya terdiri dari data waktu, lintang, longitudinal dan kedalaman, magnitudo dan percepatan tanah (gal). Perhitungan nilai percepatan tanah dilakukan dengan menggunakan persamaan metode Donovan, sedangkan untuk menghitung kecocokan nilai digunakan persamaan nilai persen error. Hasil dari perhitungan percepatan tanah diperoleh nilai percepatan tanah maksimum tertinggi diperoleh pada wilayah kecamatan Tapalang, Tapalang Barat, Simboro dan Mamuju, dengan nilai berkisar 196,50-261,66 gal. Sedangkan nilai percepatan tanah terendah diperoleh pada wilayah kecamatan Kalukku, Bonehau, Kalumpang, Papalang, Sampaga dan Tommo dengan nilai 41,76- 122,67 gal. Persentase nilai error terhadap data nilai percepatan tanah pada accelerograph bernilai 6%, hal ini menandakan bahwa metode ini dapat digunakan dalam menghitung nilai percepatan tanah maksimum dengan meninjau magnitude gempa ≥ 5 M. Kata Kunci: Data accelerograph, Donovan, earthquake, magnitudo, PGA. Abstract [Title: Analysis of the Fitness of PGA Value of The Donovant Method to Accelerograph Data (Case Study of the Mamuju Earthquake, 14 January 2021)] This study aims to map the area with the risk of the maximum ground acceleration value and analyze the suitability of the value of the empirical calculation method and accelerograph data in the earthquake case in Mamuju on January 14 2021. The data used is earthquake case data in Mamuju on January 14, 2021 with a magnitude of 5.9 obtained from the Meteorology, Climatology and Geophysics Agency of the Gowa Geophysics Station. The parameters consist of time, latitude, longitudinal and depth data, magnitude and ground acceleration (gal). The calculation of the ground acceleration value is carried out using the Donovan method equation, while to calculate the value match the percent error value equation is used. The results of the calculation of ground acceleration obtained the highest maximum ground acceleration values ​​obtained in the sub-districts of Tapalang, West Tapalang, Simboro and Mamuju, with values ​​ranging from 196.50 to 261.66 gal. While the lowest ground acceleration values ​​were obtained in the sub-districts of Kalukku, Bonehau, Kalumpang, Papalang, Sampaga and Tommo with a value of 41.76-122.67 gal. The percentage of error values ​​for the ground acceleration value data on the accelerograph is 6%, this indicates that this method can be used in calculating the maximum ground acceleration value by considering the magnitude of the earthquake ≥ 5 M. Keywords: Accelerograph data, Donovan, earthquake, magnitude, PGA.
Analysis of Landslide Potential Using Resistivity, Geology and Climatology Values in Samangki Village, Simbang District, Maros Regency Ahmad Haan; Ayusari Wahyuni; Muh. Said. L; Rahmaniah Fisika
Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics AL-FIZIYA JOURNAL OF MATERIALS SCIENCE, GEOPHYSICS, INSTRUMENTATION AND THEORETICAL PHYSICS VOL.5, N
Publisher : Physics Study Programme, Faculty of Science and Technology UIN Syarif Hidayatullah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/fiziya.v5i2.29004

Abstract

Research has been carried out that aims to determine the analysis of landslide potential using resistivity, geology, and climatology values in Samangki Village, Simbang District, Maros Regency.This study uses the resistivity method of the wenner configuration on three tracks of 120 meters at a distance between the electrodes of 10 meters. Interpretation results obtained resistivity values on the first track between 61,1-972 W.m, on the second trajectory of 58,2 - 666 W.m, and on the last track the resistivity value of the range 60,1 - 1105 W.m, which indicates the presence of limestone inserts sandstone and aquiver scattered on each track. Then combined with secondary data in the form of rainfall maps, geological maps and soil type maps. The results of the analysis then show that the location of this research is in an area prone to landslides according to primary data or field data and secondary data from the five parameters mentioned above.
APLIKASI SISTEM INFORMASI GEOGRAFI (SIG) DAN METODE GEOLISTRIK DALAM PEMBUATAN PETA RAWAN LONGSOR DI KECAMATAN ALLA KABUPATEN ENREKANG Irmayanti Irmayanti; Muh Said L; Ayusari Wahyuni
JFT : Jurnal Fisika dan Terapannya Vol 7 No 2 (2020): DESEMBER
Publisher : Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/jft.v7i2.18468

Abstract

This research was conducted Alla district, Enrekang regency. This study aims to isolate or zoning areas prone to landslides using GIS software and identify the causes of landsileds using the wenner-schlumberger configuration geoelectric method in Alla District, Enrekang Regency. Data processing method used is res2dinv software for geoelectric data and arcgis software for mapping and required parameters such as rainfall, slope, geomorphology, soil type and geology. Based on the results obtained by using GIS application by overlapping land type map, geology, slope slope, geomorphology and rainfall, then obtained landslide inecology rate in the research area namely for low inecology rate with an area of 12% spread percentage, for moderate inewanity rate with an area of 57% dispersal percentage and for high inwant rate with an area of 30% spread percentage. Results obtained using geoelectric methods found the discovery of a potential landslide slip field. This guessing is due to the three layers in the research area there is a slip field with a resistivity value of 29.7 Ωm – 37.9 Ωm. The data of the research results using GIS application is reinforced by the data of previous research by using geoelectric methods in Pana village of Alla District Enrekang Regency Keywords: SIG, Landslide, Geoelectric, Software Arcgis.
DESAIN DAN KONSTRUKSI PENYULING AIR ASIN MENJADI AIR TAWAR (SOLAR STILL) YANG MUDAH, MURAH DAN MEMILIKI EFISIENSI TINGGI Iswadi I. Patunrengi1; Aisyah Aisyah; Muh Said L; Nurul FA
JFT : Jurnal Fisika dan Terapannya Vol 7 No 2 (2020): DESEMBER
Publisher : Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/jft.v7i2.18501

Abstract

Solar still design and construction have been carried out with two models, namely the pyramid model and the prism model. The prism model is proposed as a new model that is easier and cheaper in the construction process as a potential replacement for the previous model that is more complicated. While the pyramid model is a control model. The size of the container or raw water bath used is 75 cm x 75 cm x 10 cm. the results showed that the volume of water evaporated pyramid model more than the control model, efficiency also gave a better value of 27.55% compared to 24.10% for the control model.
Pemodelan Struktur Lapisan Bawah Permukaan Berdasarkan Tahanan Jenis di Dusun Rombo Desa Saukang Kecamatan Sinjai Timur Kabupaten Sinjai Provinsi Sulawesi Selatan Aqil Naufaldy Rifanzha; Muh Said Lanto; Minarti Minarti
Jurnal Fisika Unand Vol 13 No 4 (2024)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jfu.13.4.564-572.2024

Abstract

Research has been carried out which aims to model the structure of the subsurface layers in Rombo Hamlet, Saukang Village, East Sinjai District, in Sinjai Regency. This research uses the resistivity geoelectric method of the Wenner-Schlumberger configuration. The number of measurement paths consists of five tracks, each 150 m. The geology of the research location includes the Walanae Formation, which consists of sandstones, conglomerates, tuffs, siltstones, claystones, limestones, and marls. The results of the study allegedly show that the subsurface structure consists of several layers with interpretations in the form of groundwater aquifers, sandstones, and claystones. The first track shows a resistivity value of 0.753 Ωm to 3.22 Ωm where there are free aquifers at a depth of 1.25 meters to 24.0 meters, the second track has free aquifers and confined aquifers with resistivity values of 0.976 Ωm to 3.75 Ωm which are at a depth of 1.25 meters to 28.7 meters, the third track shows a resistivity value of 0.643 Ω to 2.46 Ωm there are free and confined aquifers that spread at depths of 15.9 meters to 28.7 meters, the fourth line has free aquifers and aquifers The depressed aquifer which has a resistivity value of 1.83 Ωm to 6.27 Ωm is at a depth of 5.19 meters to 28.7 meters, while on the fifth line at a depth of 1.25 meters to 28.7 meters there are free aquifers and confined aquifers which have resistivity value of 0.801 Ωm to 4.10 Ωm.
Co-Authors Abd. Rasyid Syamsuri ABDILLAH, LUTFI Adil, Fitriani Ahmad Haan Aisyah Aisyah Akmal Akmal Alamsyah Almubdy Siraj Ramadhan Almukarrama, Almukarrama Amardika Amirin Kusmiran Anas Irwan Andi Ferawati Jafar Andi Syam Rizal Aqil Naufaldy Rifanzha Ardi, Andi Wahyuni Ayu Annisa Amir Ayusari Wahyuni ayusari wahyuni Ayusari Wahyuni Ayusari, Ayusari Dian Pratiwi Malik Dwi Nurfajriana Syam Ernawati Ernawati Faruq, Fauzi al FATHIA RAYHANI Fitria Jasman Fitriah Laksana, Nidya Lena Fitriyanti Fitriyanti Fitriyanti Hadi Nasbey Hariani Hariani, Hariani Hartina - Hartina Hartina Hasan Nur Hasriani Hasriani Hermansyah Hermansyah Hernawati Hernawati Hernawati I Gusti Bagus Wiksuana Ihsan - Ihsan Ihsan Irmayanti Irmayanti Iswadi - Iswadi Iswadi Jamhari Jamhari Kadir, Ihsan Mabrur, Mabrur Mahfiah, A Siti Minarti Minarti Mudinillah, Adam Muh. Adrian Muh. Hermadi J Muhammad Aswad Asaf Munafri, Yusuf Nidya Lena Fitriah Laksana Nur Salam NURFADILLAH JUSMAN Nurfaidah Nurfaidah Nurjannah Nurjannah NURLAELA NURLAELA Nurmin Nurmin Nurul FA Nurul Fuadi Paisa Paisa Prasepvianto Estu Broto Rahman, Rafiuddin Rahmaniah Rahmaniah Fisika RAHMANIAH RAHMANIAH Rahmaniah Rahmaniah Rahmaniah, Rahmaniah Ramadhan Priadi Rani, Sefrilita Risqi Adikaning reski sudirman Resky Perdana Yanti Rosdiana Rosdiana Sahara Sahara Santih Anggereni Sitti Fatimah Sri Wahyuna, Sri Suprapta Suprapta Syah, Chairuni Syahriani Syahriani Syam, Dwi Nurfajriana Utami Rezki Wahyuni, Ayusari Yoga Yuniadi Zelviani, Sri