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Andi Syam Rizal
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INDONESIA
Jurnal Fisika dan Terapannya
Published by Universitas Islam Negeri Alauddin Makassar
ISSN : 23021497     EISSN : 27152774     DOI : -
Core Subject : Science,
Physics
Jurnal Fisika dan Terapannya (JFT) adalah jurnal fisika yang diterbitkan oleh Jurusan Fisika, Fakultas Sains dan Teknologi, Universitas Islam Negeri Alauddin, Makassar. Jurnal ini diterbitkan dua kali setahun pada bulan Juni dan Desember. Jurnal ini mencakup artikel penelitian dalam semua aspek fisika dan terapannya. Jurnal ini pertama kali diterbitkan pada bulan Desember 2014 dan secara online di tahun 2019. Artikel hasil penelitian dalam jurnal ini berkaitan dengan fisika yang meliputi adalah fisika teori, fisika material, geofisika, fisika kesehatan, fisika instrumentasi, fisika komputasi, dan astrofisika.
Arjuna Subject : Fisika dan Astronomi - Fisika dan Astronomi (Lain-Lain)
Articles 150 Documents
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ANALISIS NILAI ABSORBANSI UNTUK MENENTUKAN KADAR FLAVONOID DAUN JARAK MERAH (JATROPHA GOSSYPIFOLIA L.) MENGGUNAKAN SPEKTROFOTOMETER UV-VIS Ahriani Ahriani; Sri Zelviani; Hernawati Hernawati; Fitriyanti Fitriyanti
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.v8i2.23379

Abstract

Research on Absorbance Value Analysis on Determination of Flavonoid Levels in Red Jatropha Leaves (Jatropha Gossypifolia L.) using UV-Vis Spectrophotometer has been conducted. This study aimed to determine the absorbance of red jatropha (Jatropha Gossypifolia L.) leaves on young and old leaves and to determine the flavonoid content of red jatropha (Jatropha Gossypifolia L.) leaves on young and old leaves. The sample used in this study was 200 g of red jatropha leaf powder (Jatropha Gossypifolia L.) with the addition of 2000 ml of 70% ethanol as solvent in a ratio of 1:10. The extraction method used in this study is the MAE (Microwave Assisted Extraction) method to measure the absorbance value of the sample at a wavelength of 436 nm using a UV-Vis spectrophotometer. The results showed that the absorbance value of red jatropha (Jatropha Gossypifolia L.) leaves on young leaves was smaller than on old leaves. Where the absorbance value in young leaves is 0.355 while the absorbance value in old leaves is 0.616. The resulting absorbance value has complied with Lambert-Beer's law (0.2 ≤ A < 0.8). The flavonoid content of red jatropha (Jatropha Gossypifolia L.) leaves in young leaves was lower than in old leaves. Where the levels of flavonoids in young leaves is 2.71% while the levels of flavonoids in old leaves is 4.90%. This shows that the greater the absorbance value, the greater the flavonoid content produced.
PENGARUH PENAMBAHAN LIMBAH PLASTIK JENIS POLYETHYLENE TEREPHTHALATE, LOW DENSITY POLYETHYLENE DAN POLYPROPYLENE TERHADAP NILAI KUAT TEKAN DAN DAYA SERAP AIR PAVING BLOCK Dya Ayu Rahma Niar Rajab; Sahara Sahara; Ayusari Wahyuni
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.v8i2.23442

Abstract

The use of plastic as an additional material in the manufacture of paving blocks is an alternative to reduce the accumulation of plastic waste. The purpose of this study is to determine the effect of adding plastic to the compressive strength and water absorption of paving blocks and to determine the composition that can produce optimal compressive strength and water absorption values. The design used in this study consisted of 3 treatments, namely normal paving blocks or without additional plastic, paving blocks with the addition of one type of plastic each, and paving blocks with the addition of three types of plastic at once. The amount of plastic used is 0.4% of the mass of paving blocks, with a ratio of cement and sand used, namely 1: 3. The tests carried out are compressive strength tests and water absorption tests. The test results show that the maximum compressive strength is found in the addition of three types of plastic waste, each 33.3% of the total fiber, which is 19.84 MPa with an increase of 17% from normal paving blocks. The sample also has the lowest absorption value of 4.1% with an increase of 14% from normal paving blocks. The value above can meet SNI 03-0691-1989 quality B, which means it can be used for parking lots
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.
KARAKTERISASI SIFAT FISIS PAPAN PARTIKEL SABUT KELAPASERAT PELEPAH LONTAR Muh. Said. L; Nurul Fuadi; Muh. Fadhlan Dzikriansyah
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.v8i2.24814

Abstract

This study aims to determine the results of testing on particle board made from coconut fiber and palm fronds; determine the effect of variations in the composition of the material on the quality of the physical properties of the material and determine whether the particleboard made has complied with the Indonesian National Standard SNI 03-2105 2006. The research method was carried out by laboratory testing consisting of three stages. Phase I: Preparation of materials and determination of mass and composition variations, Phase II: Process of making samples (finely chopped grinding phase, sifting 18 mesh, weighing according to composition variations, mixing, molding size (25×25×1) 3 cm, pressing at 185 °C for 15 minutes at a pressure of 25 kg/cm3 and standing 2 × 24 hours), and stage III: The process of testing physical properties includes moisture content, density, and thickness expansion. The results showed that the laboratory tests of physical properties: moisture content (2.01- 3.88)%, density (0.713-0.891) gr/cm3, and thickness expansion ranged from (0.75-11.61)%. Particleboard made based on its physical properties has complied with SNI 03-2105-2006.
EFEK SINTESIS SILANE COUPLING AGENT PADA SIFAT FISIS DAN MEKANIS KOMPOSIT DENGAN PENGISI SERBUK KENAF DAN RESIN EPOKSI Delovita Ginting; Reka Nuansa Fitri
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.v8i2.25316

Abstract

This study aims to see the effectiveness of the chemical treatment of silane coupling agent on the physical properties (density and water absorption) and mechanical properties (tensile strength and impact strength) of the kenaf powder composite. Kenaf powder was alkalized using NaOH for 4 hours, then mashed using a grinding machine until it passed a 50 mesh sieve. The kenaf powder that has passed the sieve is then chemically treated with a silane coupling agent solution. Variations in the concentration of the silane coupling agent solution used were 0%, 10%, 20% and 30% of the mass of kenaf powder. Kenaf powder which has been synthesized with a silane coupling agent is then mixed with epoxy resin adhesive with a ratio of 30/70 in weight percent. The composite compaction process uses a Hydrolic Hot Press compacting machine with a pressure of 20 Bar at a temperature of 125 oC and a holding time of 15 minutes. The result of this research is that the treatment with 20% silane coupling agent on kenaf powder is effective in improving the physical and mechanical properties of the composite.
ANALISIS POTENSI LIKUEFAKSI DAERAH PALU BERDASARKAN KECEPATAN GELOMBANG GESER DAN PERCEPATAN TANAH MAKSIMUM (STUDI KASUS GEMPABUMI PALU 28 SEPTEMBER 2018 MW 7,4) Sandy Tri Gustono; Haura Dhiya Amaninida; Arif Alhazmi Fauzi
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.v8i2.25371

Abstract

The Palu-Donggala earthquake on 28th September 2018 caused huge losses, especially losses caused by liquefaction in several regions. Liquefaction is a phenomenon in which the strength of the soil layers is reduced due to earthquake shaking. So far, many studies on liquefaction have used Cone Penetration Test (CPT) and Standard Penetration Test (SPT) data, whereas shear wave velocity (VS) data can be an alternative for the research. This study aims to analyze the potential for liquefaction after the earthquake on 28th September 2018 by using shear wave velocity data (VS) and the NCEER method at three different peak ground acceleration. This study uses measurement data that has been carried out at 67 points around the Palu area, Central Sulawesi. The potential of the liquefaction is determined based on the value of the shear wave velocity (VS) which is then analyzed to obtain the Factor of Safety (FS) value which obtained from a comparison of the value of the Cyclic Resistance Ratio (CRR) and the value of the Cyclic Stress Ratio (CSR). The area is assumed to have a liquefaction potential if the FS value is less than one. Based on the results of this research, almost all the areas show the potential for liquefaction in the three values of peak ground acceleration. The only thing that distinguishes the three results is the total thickness of the liquefaction layer at each measurement point.
ANALISIS POTENSI SUMBER DAYA BATUGAMPING DI KAWASAN KARST DESA SAMANGKI, KABUPATEN MAROS, SULAWESI SELATAN Minarti Minarti; Jumardin Jumardin; Abdul Munim; Muhammad Fawzy Ismullah Massinai; Arif Wijaya
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.v8i2.26239

Abstract

Research has been carried out in Samangki Village which aims to analyze the potential of limestone resources using the Geoelectrical Resistivity Method with the Wenner-Schlumberger configuration. Data were collected at 801904.40-802051.05 NE and 9440758.03-9440548.93 SW for 3 lines along 120 m with 10 m electrode space in a track. Acquired data were processed using Microsoft Excel, Notepad, RES2DINV, ArcGIS, and Google Earth applications to produce resistivity cross-sections and other supporting maps. Based on data interpretation, it shows that the low resistivity zone is an alluvium deposit (Qac) with resistivity value of 17.58 to 170 Ωm; and the high resistivity zone indicates the presence of limestone which is part of the Tonasa Formation (Temt). The presence of limestone on line-1 with resistivity value of 326.00 to 931.90 Ωm at position(x) 60 to 90 m, in depth(y) 1.25 to 9.26 m as shallow area, and at position 40-45 m in depth 16 to 19.8 m as the deepest area. Then the limestone on line-2 is indicated as a subsurface karst tower with a resistivity value of 462.00 to 809.36 Ωm at position 30 to 50 m in depth 1.25 to 19.8 m. Limestone also located on the northeastern edge of line-3  with resistivity values of 431.00 to 739.66 Ωm at a position of 12.5 to 17.5 m in depth of 1.25 to 6.38 m. It proves that Samangki Village has large potential for limestone resources. This research need further geoelectrical study with broad coverage area and geochemical analysis for detail karst characterization
STUDI ANALISIS DATA DIFRAKSI SINAR-X PADA MATERIAL ZIRCON PASIR ALAM MELALUI METODE RIETVELD Sefrilita Risqi Adikaning Rani
JFT : Jurnal Fisika dan Terapannya Vol 9 No 1 (2022): JUNI
Publisher : Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/jft.v9i1.25470

Abstract

ZrSiO4 (zircon) material derived from natural sand has been successfully synthesized to produce single crystals. Structural analysis and phase change were studied by X-Ray diffraction. Rietveld analysis was carried out as a method of analyzing X-Ray Diffraction data. Zircon with a tetragonal crystal structure has been successfully synthesized to produce single crystals of ZrSiO4 with space group I41/amd. The results of the Rietveld analysis of single crystal ZrSiO4 samples with a tetragonal structure obtained lattice parameters a= 6.602727 (323) c= 5.978810 (317) with a crystal size distribution of 527.033 (0) nm and macrostrains of 0.001x10-4.
ANALISIS DAMPAK PUASA SENIN KAMIS TERHADAP KADAR KOLESTEROL DALAM DARAH MENGGUNAKAN ALAT UKUR NON-INVASIF BERBASIS ARDUINO UNO Muhammad Labib; Farah Alfiana Na’ila; Lailiyatu Latifah; Heni Sumarti
JFT : Jurnal Fisika dan Terapannya Vol 9 No 1 (2022): JUNI
Publisher : Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/jft.v9i1.25745

Abstract

Excessive cholesterol in the blood can have an impact on health, causing various deadly diseases. Fasting Monday and Thursday is one solution in lowering cholesterol levels in the blood apart from our main reason for worshiping Allah SWT. The purpose of this study was to determine the effect of fasting on Mondays and Thursdays on cholesterol levels in the blood using a non-invasive cholesterol level measuring instrument based on Arduino Uno. The method used is the Research and Development (R&D) method. The results showed that the non-invasive measuring instrument had an accuracy of 97.02%, so it was feasible to be used as a medical measuring instrument. Analysis of six respondents who did fasting Monday and Thursday shows a linear tendency to decrease cholesterol levels with an average coefficient of determination of 0.3282.
STUDI KUALITAS EDIBLE FILM BERBASIS LIMBAH AIR CUCIAN BERAS (ORYZA SATIVA) DAN PEKTIN KULIT PEPAYA (CARICA PAPAYA L.) DENGAN PENAMBAHAN GLISEROL Siti Asyiqah Azizah Ilham; Rahmaniah; Fitriyanti
JFT : Jurnal Fisika dan Terapannya Vol 9 No 1 (2022): JUNI
Publisher : Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/jft.v9i1.25810

Abstract

The edible film is a thin layer that can be used as a food coating made from natural ingredients, which functions as a barrier to mass transfer such as moisture and oxygen. In minimizing environmental problems due to synthetic plastic waste, research was carried out on the manufacture of edible films from rice washing water waste (Oryza sativa) and papaya peel pectin (Carica papaya L.) with the addition of glycerol. This study aims to determine the quality of the mechanical properties and physical properties of edible films. The mechanical test includes the tensile strength test, elongation test, and absorption test for water resistance, while the physical test includes the FTIR test. In this study, the results of the tensile strength test on the sample met SNI 7818:2014. The results of the sample elongation test have complied with SNI 7818:2014 and JIS, 1975. The lowest water absorption was obtained in the sample with the addition of 5% glycerol. The FTIR results of the samples showed that there were no new functional groups and they still had distinctive groups in their pectin and CMC structures.

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