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Andi Syam Rizal
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Jurusan Fisika Gedung Fakultas Sains dan Teknologi Lt. 2
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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 10 Documents
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Search results for , issue "Vol 5 No 2 (2018): Desember" : 10 Documents clear
KARAKTERISASI NANOSILIKA DARI ABU TERBANG (FLY ASH) PT. BOSOWA ENERGI JENEPONTO DENGAN MENGGUNAKAN METODE ULTRASONIC Desianti, Ika; Rahmaniah, Rahmaniah; Zelviani, Sri
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 | Full PDF (591.395 KB) | DOI: 10.24252/jft.v5i2.10243

Abstract

This research aims at the process of making fly ash nanosilica using ultrasonic methods and to determine the characterization of nanosilica from fly ash. Many studies have shown that fly ash contains silica. The process of extracting silica from fly ash uses the reflux method extraction process. Meanwhile, the process of making silica nanoparticles uses ultrasonic methods. The ultrasonic method is a method for breaking particles by utilizing ultrasonic waves with a high frequency that is above 20 kHz. The resulting silica was divided into three with each different treatment, namely silica without sonication (TN), silica with sonication process for 60 minutes (N60) and for 120 minutes (N120). The silica each has a percentage of elements (%) ie 23.13%, 20.25% and 17.82%.
KARAKTERISTIK TEKTONIK DAN PERIODE ULANG GEMPA BUMI PADA SESAR MATANO SULAWESI SELATAN Hariani, Hariani; Said L, Muh.; Wahyuni, Ayusari
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 | Full PDF (754.409 KB) | DOI: 10.24252/jft.v5i2.10242

Abstract

This research aims to determine the tectonic characteristics of the Matano Fault by looking at the a-value and b-value values and the period of earthquake occurrence. Matano fault is an active fault in Sulawesi. So the potential for earthquakes in this area is quite high. By analyzing the earthquake return period, especially for earthquakes with large magnitudes, we can estimate when approximately large earthquakes will occur again and anticipate in dealing with them. Based on the results of research using the Least Square method and the Likelihood the value of a-value (earthquake activity) is higher than the b-value (local rock conditions). This indicates that seismic activity in Matano fault is relatively high. Whereas for b-value (rock condition) The greater the b-value the greater the level of rock fragility and vice versa. In determining the level of seismicity in an area using two methods, namely the least square method with a b-value of 0.310 and a-value of 3.177 while for the Likelihood method a b-value of 0.315 and an a-value of 2,551 from the two methods obtained by different regions that matano faults which have high seismicity or earthquake prone areas. From the calculation using the Least Square method, the fastest return period for M tercepat 4 is around 4 years and the longest is around 23 years while the results obtained from the Likelihood method are the fastest return period around 5 years and the longest is around 48 years.
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.
STUDI KARAKTERISASI DAERAH RAWAN LONGSOR DI DESA MALIWOWO KECAMATAN ANGKONA KABUPATEN LUWU TIMUR BERDASARKAN UJI X-RAY DIFFRACTION (XRD) Nurlaela, Nurlaela; Said L, Muh.; Iswadi, Iswadi
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.v5i2.16108

Abstract

Research has been conducted in Maliwowo village, Angkona sub-district, East Luwu district, which aims to determine the mineral content and crystal structure of the soil in Maliwowo village, Angkona sub-district, East Luwu district. The method used in this study is the sampling technique carried out with five different points with a depth of 90 cm each. The results of X-Ray Diffraction (XRD) analysis showed that the minerals contained in sample A were 54,5% ,ite kaolinite 24,2% and 21,3% merrilite with successive crystal structures, namely monoclinic, triclinic and trigonal. The sample point B is illite 43,7%, albite 39,8% and merillite 16,5% with successive monoclinic, triclinic and trigonal crystal structures. The sample point C illite 47,9%, kaolinite 28,6% and feldspar 23,5% with crystal structures mononlinic, triclinc and monoclinic respectively. The point D sample was 53.7% ,ite albite 33.9% and 12.4% feldspar with monoclinic, triclinic and monoclinic crystal structures. The sample point E illite 54.4%, feldspar 27.7% and merrilite 17.9% with successive crystalline structures namely monoclinic, triclinic and trigonal.
PENGARUH TEMPERATUR TERHADAP NILAI KAPASITANSI ELEKTRODA SUPERKAPASITOR GRAPHENE BERBASIS BAMBU BETUNG (Dendrocalamus asper) Amaliah, Fia; Sahara, Sahara; Fuadi, Nurul
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.v5i2.15645

Abstract

This study aims to analyze the effect of temperature variations on the capacitance of graphene material supercapacitor electrodes from bamboo material Betung (Dendrocalamus asper). The results obtained are graphene reduction can be synthesized by the hummer method which is reduced using Zn and continued with a thermal process with different temperature variations. The data obtained shows that from the GO, rGO 80 ° C, and 200 ° C rGO samples the largest capacitance value is the 200 ° C rGO sample, which is 8.87 × 10-3 F / gram with d-spacing 3.821082 Å, while the capacitance value for GO and rGO 80 ° C samples respectively 2.23 × 10-5 F / gram with d-spacing 3.668773 Å and 1.67 × 10-4 F / gram with d-spacing 3.680739 Å. This happens because the thermal effect is given, the greater the temperature given, the more pores are formed and the surface area will also be larger which results in more ion absorption and electron transfer on the electrode surface. However, if the given temperature is too large then the pore structure will be damaged and produce a low surface area. All samples that have the largest capacitance at the smallest pay rate are 10 mV / s.
PENGARUH PEMBERIAN CAHAYA TERHADAP WAKTU PERKECAMBAHAN TANAMAN BAYAM (Amaranthus Spinosus) Indasari, Nur; Hernawati, Hernawati; Hamzah, Ria Rezki
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.v5i2.16109

Abstract

Research has been done on plant germination with the addition of LED light with variations in color, lamp distance, and type of lamp with the aim to determine the growth of green spinach and red spinach when treated at night. This research was carried out by planting green spinach and red spinach in 10 polybags in each light. Every 10 polybags of spinach are illuminated by lights with red, blue, yellow, and polybag colors without the addition of light. Furthermore, at the distance of the lamp 60 cm, 50 cm, 40 cm, 30 cm, 20 cm, 10 cm and without the addition of light. And for this type of LED lights, incandescent, neon and without the addition of light. Illumination of light is carried out at night for 3 hours. Spinach germination is observed every day to find out the time of germination, and is controlled at all times for plant maintenance by watering the plants so that soil moisture remains controlled. The data obtained from this study were analyzed by graphical analysis of the relationship of light to the time of germination of green spinach and red spinach plants. The results of this study indicate that the light influences the red LED light, distance of 10 cm and 20 lights and the type of fluorescent lamp on the germination of spinach plants. While the influence of other lights gives the same effect on spinach plants, because the growth is rather slow compared to plants that are illuminated in red lights, the distance of the lights is 10 cm and 20 cm, and the type of fluorescent lights.
PENGUKURAN LAJU DOSIS PAPARAN RADIASI HAMBUR PADA RUANG COMPUTER TOMOGRAPHY (CT) SCAN DI RUMAH SAKIT BHAYANGKARA MAKASSAR Astuti, Astuti; Sahara, Sahara; Zelviani, Sri
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.v5i2.16110

Abstract

This research aims to determine the effect of exposure to radiation dose on the distance from the radiation source, determine radiation dose exposure with variations in exposure factors (voltage), and to determine the radiation exposure received by workers / operators in the CT-Scan room at Bhayangkara Hospital Makassar and using a sensitive Surveymeter with variations in the exposure factor (voltage) of 100 kV, 120 kV, and 135 kV and a variation of the distance from the radiation source of 0 m, 1 m, 2 m. The results showed that the highest dose was on the front side with a voltage of 135 kV at a distance of 0 m, namely 1.5 nSv / h. While the lowest dose is on the left side with a voltage of 100 kV at a distance of 2 m, namely 0.6 nSv / h. Radiation exposure received by workers / operators in the CT-Scan room at Bhayangkara Hospital Makassar at a voltage of 135 kV, a distance of 1 m from the radiation source, namely 1.5 nSv / h. This is in accordance with the provisions of BAPATEN, namely the value of the dose received does not exceed 50 mSv in (one) year.
PEMBUATAN ARANG AKTIF DARI BATOK BIJI KLUAK SEBAGAI ADSORBEN AIR SUMUR YANG TERCEMAR Fatimah, Sitti; Iswadi, Iswadi; Said L, Muh
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.v5i2.16105

Abstract

This research aims to determine the mineral content of activated charcoal made from kluwak seed shell, the quality of activated charcoal made from kluwak seed shell, and the absorption capacity of kluwak seed shell charcoal as adsorbent of polluted well water after testing. From the results of XRF analysis, it can be seen that there are still several types of impurities in activated carbon shells of kluwak seeds. It can be said that the activated carbon obtained is not yet fully pure activated carbon because pure activated carbon only contains 100% carbon. Where the quality of activated charcoal made from kluwak seed shells meets the requirements of SNI-06-3730-1995 in terms of water content and ash content. And the absorption capacity of Kluwak sage shell charcoal as an adsorbent of contaminated well water after testing, namely the gravel, activated carbon, and silica sand have met the clean water eligibility standards when viewed from turbidity and color while in the gravel filter layer, silica sand, carbon and in the silica sand filter, activated carbon, gravel have not met the eligibility requirements for clean water because of the high turbidity and the solid color.
PENGOLAHAN LIMBAH CAIR LABORATORIUM KIMIA DENGAN MENGGUNAKAN METODE ELEKTROKOAGULASI DAN KOAGULAN BIJI KELOR Syamsur, Nadia Nurafiah; Ihsan, Ihsan; Sahara, Sahara
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.v5i2.16107

Abstract

This research aims to determine the characteristics of chemical laboratory wastewater which includes COD, pH, turbidity and heavy metals (Pb, Hg, and Cd) before processing and after processing using the electrocoagulation method and moringa seed coagulant. The electrocoagulation process is carried out using a pair of electrode plates made of iron as anode and cathode with a voltage variation of 6, 9 and 12 V with each coagulation process carried out for 30, 60 and 120 minutes for each voltage variation and the coagulation-flocculation method using 2.5 grams of moringa seed powder each as a coagulant with fast stirring for 5 minutes and slow stirring for 2 minutes. The results obtained from the electrocoagulation method and the coagulant method of moringa seeds, namely with pH parameters of 5, COD of 20000 ppm, turbidity of 4.09 FTU, Hg levels of 1.2857 mg / l, Pb levels of 0.090659341 mg / l and Cd levels of 0.090659341 mg / l. This shows that the electrocoagulation method and the coagulant method of Moringa seeds can reduce each of the parameters tested, both pH, COD, turbidity and heavy metals (Pb, Hg and Cd).
PEMANFAATAN LIMBAH CANGKANG KEONG SAWAH (Bellamya javanica) UNTUK SINTESIS HIDROKSIAPATIT DENGAN MODIFIKASI PORI MENGGUNAKAN PATI UBI JALAR Indriani, Yunida; Iswadi, Iswadi; Fuadi, Nurul
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.v5i2.16111

Abstract

The research has been carried out by utilizing pore conch shell waste using sweet potato starch to make porous Hydroxyapatite using porogen sweet potato starch by precipitation method and to determine the bioactive properties of apatite hydroxy and the growth of apatite crystals using Simulated Body Fluid (SBF). This study used wet precipitation method. The results of the analysis  using XRD show that the HAp phase has been formed. The morphology of HAp based on SEM results shows that HAp pores modification is produced in the composition of HAp added with 20% sweet potato starch with 6 hour sonication wich results in pore size from the range 0,23-3,37 µm. This result is not correlate with the theory that the best pore modification is produced in the composition of HAp added with 30% starch. This is because there are difference characters of each sweet potato used. The result of in vitro tests on synthesis HAp samples and 7 days porous HAp have shown the growth of apatite crystals in SBF solution media (Simulated Body Fluid).

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