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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 PENGARUH ANGIN TERHADAP POLA ARUS PERMUKAAN DAN DISTRIBUSI SALINITAS DI MUARA SUNGAI PALU Meidji, Icha Untari; Mudin, Yutdam; Jayadi, Harsano; Botjing, Muslimin U
JFT : Jurnal Fisika dan Terapannya Vol 7 No 1 (2020): Juni
Publisher : Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/jft.v7i1.13219

Abstract

The pattern of surface currents and salinity distribution at the mouth of the Palu River by using the 2D coherens model to show that the presence of wind factors influences the velocity and direction of the tidal and non-tidal surface flow patterns at the mouth of the Palu River. Using primary and secondary data, the results show that non-tidal currents are more dominant with the direction of spread from the North to the East to the West then turn to the South, with a velocity of 2.57 m/s. The pattern of salinity distribution with tidal and non-tidal flow generators has a different model. Still, it has the same direction, namely the flow from North East to West direction, which is deflected to the South adjacent to the mouth of the Palu River estuary. 
PENGUJIAN PAPARAN RADIASI SINAR-X DI UNIT RADIOLOGI RSUD KOTA MAKASSAR Yuliamdani, Riska; Sahara, Sahara; Fuadi, Nurul
JFT : Jurnal Fisika dan Terapannya Vol 7 No 1 (2020): Juni
Publisher : Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/jft.v7i1.13867

Abstract

The research has been conducted to determine the effect of exposure to a dose of radiation to the distance and time from the source of radiation and to determine how large exposure to radiation scattering which is received by a worker or operator in the space radiology Hospital Makassar. This research uses X-ray aircraft, Surveymeter, meter, and phantom. In measurements carried out two stages namely stage first measure exposure dose of radiation to the distance the results of the research that is done on testing the safety of exposure to radiation rays -X in units of radiology Hospital cities of Makassar, then obtained a conclusion as follows based on parameters of distance and time from the source of radiation effect large against  dose of radiation exposure. A more far distance from the source of radiation the dose that is received by increasingly smaller. While the influence of the amount of time of the exposure beam of radiation that is increasingly long time irradiation then getting big too doses of radiation are obtained. Value exposure to radiation scattering which is received by the worker radiation chamber radiology Hospital of Makassar is the dose of radiation that is received by workers with long time use of radiation were the biggest received by operators XIII which amounted to 0.1769 mSv/h, while the value of the dose which is the smallest  received by the operator XI of 0.0593 mSv/h and the average dose received by the operator is 0.1570mSv/h.
STUDI ANALISIS KOEFISIEN ABSORBSI PAPAN AKUSTIK PADA KETEBALAN BERVARIASI BERBAHAN DASAR LIMBAH KULIT JAGUNG DAN SABUT KELAPA (SOLUSI ALTERNATIF RAMAH LINGKUNGAN) Said L, Muh.; Nurmin, Nurmin; Zelviani, Sri
JFT : Jurnal Fisika dan Terapannya Vol 7 No 1 (2020): Juni
Publisher : Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/jft.v7i1.13484

Abstract

This study aims to detemine the effect of thickness on the absorption coefficient of acoustic boards from corn waste and coconut fiber with polyester resin adhesive. The procedure used is used in the research carried out by making acoustic boards with two types of samples, which are fine chopped materials and materials that have been roughly cut with a thickness of 0.7 cm, 1.0 cm and 1.5 cm and measure the coefficient absorption of the thickness of the acoustic material board. The frequency value used is 200 Hz, 250 Hz, 500Hz, 1000 Hz, 2000 Hz and also 4000 Hz. Based on the results of research conducted, it is found that the absorption coefficient value of straight-line coefficient, where the thicker a material, the smaller the coefficient of absorption. Sound absorption coefficient is good, namely at all thicknesses with a frequency of 200 Hz, 250 Hz and 500 Hz both from fine counts and rough counts. This shows that acoustic boards made of corn husk and coconut fiber can be used as sound absorbers because they have been included in the requirements of the ISO 11654 standard. 
ANALISIS POTENSI DAN KARAKTERISTIK LIMBAH PADAT FLY ASH DAN BOTTOM ASH HASIL DARI PEMBAKARAN BATUBARA PADA PEMBANGKIT LISTRIK TENAGA UAP (PLTU) PT. SEMEN TONASA Yunita, Eka; Rahmaniah, Rahmaniah; Fitriyanti, Fitriyanti
JFT : Jurnal Fisika dan Terapannya Vol 4 No 1 (2017): Juni
Publisher : Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/jft.v4i1.15755

Abstract

A research was conducted at Steam Power Plant (PLTU) of PT. Semen Tonasa in which the coal burning resulting waste that is dust, fly ash and bottom ash. This research aimed to find out how much solid waste was resulted and how was the characteristic. Based on the secondary data obtained, it was found out that this Steam Power Plant results 96,07 ton of fly ash dan 41,62 ton of bottom ash in a day. Then a test was conducted in laboratory with elemental content analysis method using XRF showing that the highest element was silica and iron while as the calculation result of LOI content, it was found that fly ash had low content of carbon so that it is good to use as mixture of cement. Meanwhile, bottom ash contained high content of carbon so that it is fit to apply with polymer materials. Furthermore, the analysis was continued using XRD method and found that fly ash BTG I was dominated with Davyne mineral phasa with hexagonal crystal structure. Bottom ash showed bavenite phasa with orthorhombic crystal structure. Meanwhile, at BTG 2, fly ash showed Quartz phasa with trigonal crystal structure (hexagonal axes) and for bottom ash, there was Berlinite phasa with trigonal crystal structure (hexagonal axes) and Gillespite phasa with yang orthorhombic crystal structure. Key Word: PLTU, Fly Ash, Bottom Ash, LOI, XRF, XRD
PENGARUH PENAMBAHAN CaCO3 SEBAGAI FILTER PADA SEMEN OPC (ORDINARY PORTLAND CEMENT) TERHADAP PERFORMA SETTING TIME DAN KUAT TEKAN (STUDI KASUS PT. SEMEN INDONESIA) Sefrilita Risqi Adikaning Rani; Nurlailiyah Isnaini
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.v7i2.17486

Abstract

Research has been carried out on the effect of adding CaCO3 as a filler in OPC cement (Ordinary Portland Cement) on setting time performance and compressive strength. The purpose of this study was to determine the effect of adding CaCO3 as a filler on the compressive strength and setting time of OPC cement. The principle of this experiment is the addition of CaCO3 to each of the OPC cement samples, after which the paste is tested for setting time with the Vicat tool. Mortar samples were made to be tested for compressive strength using a compressive strength test equipment. The results of the addition of CaCO3 as a filler in OPC cement include, the optimum value was obtained when the addition of CaCO3 was 5.5% based on the results of linear interpolation with a blank ratio. However, it is safer if the optimum value used as a reference for PT Semen Indonesia (Persero)Tbk is 5.4%. The addition of CaCO3 to OPC cement can save production costs in making OPC cement. The value of setting time and compressive strength obtained still meet the standards set by PT Semen Indonesia (Persero) Tbk.
PENGARUH KONSENTRASI PIGMEN WARNA DARI DAUN PACAR KUKU (LAWSONIA INERMIS L.) TERHADAP EFISIENSI DYE SENSITIZED SOLAR CELL (DSSC) Lahsmin, Yulia Kirana; Rahmaniah, Rahmaniah; Iswadi, Iswadi
JFT : Jurnal Fisika dan Terapannya Vol 4 No 1 (2017): Juni
Publisher : Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/jft.v4i1.15741

Abstract

Was research on Dye Sensitized Solar Cell to determine the effect of concentration Henna leaves pigments (Lawsonia Inermis L.) on the efficiency of DSSC. The solar cell is made with a sandwich structure, the dye used is made in three variations of concentration is concentration of 10 %, 20 % and 30 %. TiO2 deposition on ITO glass made using the method of doctor blade with a cell area of 2.25 cm2 for 24 hours of immersion in the dye. Based on the results of measurements of I-V by using a source of light, DSSC efficiency for dye obtained with a concentration of 30 % which is 0.003366667 %, to dye with a concentration of 20 % is 0.0033264 % and to dye with a concentration of 10 % which is 0.000312 %. This research can be concluded that the higher the concentration of dye used, the higher the efficiency of DSSC generated. Keywords: dye, efficiency, henna leaves, solar cells.
ANALISIS PAPAN KOMPOSIT DARI LIMBAH PLASTIK POLYPROPHYLENE (PP) DAN SEKAM PADI Nurjannah, Nurjannah; Hernawati, Hernawati; Rahmaniah, Rahmaniah
JFT : Jurnal Fisika dan Terapannya Vol 2 (2015): Desember
Publisher : Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/jft.v2i0.16889

Abstract

This study aims to determine the quality of the composite board from a variety of compositions. The sample composition consisted of 50% polypropylene plastic: 50% rice husk, 60% polypropylene plastic: 40% rice husk, 70% polypropylene plastic: 30% rice husk and 80% polypropylene plastic: 20% rice husk. The method used in this research is physical test and mechanical test. As for the results of the physical properties test, the density test of all compositions meets the standards starting from the low, medium and high density composite board category. To test the moisture content of all compositions meet the standards. Meanwhile, in the water absorption test, there was no composition that met the standards. For the thickness change test, all compositions met the standards except for the composition of 50% polypropylene plastic: 50% rice husk. The test results for the mechanical properties of all compositions do not yet meet Indonesian national standards.
STUDI DOSIS RADIASI PADA PEMERIKSAAN COMPUTER TOMOGRAPHY (CT) SCAN DENGAN NILAI COMPUTER TOMOGRAPHY DOSE INDEX (CTDI) DI RUMAH SAKIT BHAYANGKARA MAKASSAR Irnawati, Irnawati
JFT : Jurnal Fisika dan Terapannya Vol 5 No 2 (2018): Desember
Publisher : Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/jft.v5i2.16112

Abstract

This research aims to determine the radiation dose received by patients on a CT-Scan examination using the CTDI value and to determine whether the dose received by the patient is in accordance with the dosage standard issued by the Nuclear Energy Supervisory Agency (BAPETEN) and uses the piranha X-Ray Multimeter on Different voltage and slice thickness, namely at a voltage of 100 kV, 120 kV, 135 kV. And the slice thickness is 2 mm, 4 mm, and 10 mm, and the tube current and scanning time are constant, namely 100 mA and 1 s. Where the measurement is carried out in 2 stages, namely the first stage measuring the CT-Scan radiation dose with the CTDI value in the air and the second stage measuring the CT-Scan radiation dose with the CTDI value on the phantom. The results showed that the highest dose received for CTDI in the air was at a voltage of 135 kV at a thickness of 10 mm, namely 49.656 mGy, the lowest value for CTDI in air was at a voltage of 100 kV at a thickness of 2 mm, namely 28.771 mGy. While the highest CTDI value on the Phantom is at a voltage of 135 kV at a thickness of 10 mm, namely 41.749 mGy, the lowest CTDI value on the phantom is at a voltage of 100 kV at a thickness of 2 mm which is 15.819 mGy. This is in accordance with the provisions of BAPETEN, namely the dose value received does not exceed 50 mGy for CT-Scan examination.
PERBANDINGAN EFISIENSI DYE SENSITISIZED SOLAR CELL (DSSC) DARI EKSTRAK DAUN PACAR AIR, EKSTRAK BUNGA PACAR AIR MERAH DAN UNGU (IMPATIENS BALSAMINA LINN) SEBAGAI DYE SENSITIZER Alimuddin, Arni; Iswadi, Iswadi; Sahara, Sahara
JFT : Jurnal Fisika dan Terapannya Vol 3 (2016): Desember
Publisher : Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/jft.v3i0.16829

Abstract

Research on Comparison Of Efficiency Dye Sensitized Solar Cell (Dssc) Of Henna Leaf Extract Water, Water Henna Flower Red And Purple (Impatiens Balsamina Linn) as a Dye Sensitizer in order to determine how much comparative efficiency of dye sensitisized solar cell (DSSC ) of water henna leaf extract, flower extract water henna red and purple as a dye sensitizer. The method used in this research is the method of Doctor Blade. Based on the results of measurements of I-V by using a source of light, the efficiency gained from henna leaf extract 0.008473333% water by absorption spectrum wavelengths are in the range of 245- 660.50 nm and an absorbance of 0.036. For efficient water henna red flowers of 0.007466667% of this extract is the wavelength range of 242.50 - 312 500 nm and absorbance of 4573, while for the water purple flowers girlfriend 0.004833333% efficiency results obtained in the wavelength range 238.50 - 350.50 nm and absorbance 4,617 , Henna leaf extract water as a dye sensitizer on sensitisized dye solar cell (DSSC) have the highest efficiency.
PEMANFAATAN JERAMI DAN BUAH LONTAR SEBAGAI SUBSTRAT MENGGUNAKAN TEKNOLOGI MICROBIAL FUEL CELL Basmanto Basmanto; Hernita Sapitriani; Nurfadhilah jusman; Sahara Sahara; Jasdar Agus
JFT : Jurnal Fisika dan Terapannya Vol 8 No 1 (2021): JUNI
Publisher : Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/jft.v8i1.21192

Abstract

The increasing energy consumption is not directly proportional to the availability of energy. This encourages the continued development of alternative energy sources to replace fossil energy sources.  In this research, a Microbial Fuel Cell (MFC) will be made as an alternative energy source that metabolism of bacteria to produce electrical energy.  Microbial Fuel Cell (MFC) is made by varying the type of substrate.  The type of substrate used is made of straw and borassus fruit extract. In this study, the MFC design uses a dual-chamber system consisting of an anode compartment and a cathode compartment. Analysis of the effect of substrate variations on MFC performance can be seen from the measurement data of current and voltage using a digital multimeter based on the length of time working with the addition of resistance and without resistance which is used to determine the power density value. The measurement results showed that the highest power density for straw substrate was obtained at 1st hour measurement, which a value of 770.1 mW/m2 for the addition of external resistance and 401.6 mW/m2 without external resistance.  Meanwhile, for the borassus fruit extract substrate, the highest power density was obtained at 29 hours of 594.1 mW/m2 using external resistance and 364.9 mW/m2 without external resistance. The resulting power density value is higher than previous studies so that the straw and borassus fruit extract substrate has a great potential to be used as a substrate in MFC technology.

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