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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 189 Documents
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ANALISIS BESAR KECEPATAN GELOMBANG PRIMER PADA STASIUN BMKG WILAYAH IV MAKASSAR Wahyuni, Ayusari; Ahmad, Nurul Fitriah; Nurhidayanti, Nurhidayanti; Astuti, Sri; Indah, Indah
JFT : Jurnal Fisika dan Terapannya Vol 4 No 2 (2017): Desember
Publisher : Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (522.895 KB) | DOI: 10.24252/jft.v4i2.10254

Abstract

Data analysis has been carried out to determine Primary wave velocity (Vp) using official data of the monthly report of Geophysics, Regional Earthquake Center (PGR) 4, Center for Meteorology Climatology and Geophysics (BMKG) region IV Makassar with seven stations namely BKSI (Bulukumba), SPSI (SPSI) Sidrap), KAPI (Kappang), PMSI (Majene), TTSI (Tana Toraja), LUWI (Luwuk Geofon Station, and MPSI (Mapaga). Based on data analysis, values of Vp ranged from 12.9105 km/s to 214437.1 km/s.
STUDI PERBANDINGAN PENGARUH BERBAGAI WARNA LAMPU DAN BUNYI TERHADAP PERTUMBUHAN SAYURAN SAWI HIJAU (BRASSICA RAPA VAR. PARACHINENSIS L) Musdarina, Musdarina; Hernawati, Hernawati; Fitriyanti, Fitriyanti
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 (482.916 KB) | DOI: 10.24252/jft.v6i1.10183

Abstract

Research has been conducted which aims to determine the effect of various colors of LED light and sound effects with frequency of 280Hz-16KHz. This research was conducted by seeding mustard greens for 2 weeks then moving mustard greens to polybags by giving two treatments. First treatment of mustard greens illuminated by LED lights with the color red, yellow, green and the fourth polybag left without the addition of LED light. The second treatment is every 1 polybag of green mustard illuminated by LED lights with red, yellow, green lights at night for 4 hours then exposed to sound in the morning for 4 hours and the fourth polybag is exposed to sound without the addition of lights. The results of this study indicate the effect of the addition of red LED light color on the plant is clearly seen in the width of green mustard leaves that have wider leaves between the addition of other LED light colors and the number of leaves produced more than the addition of yellow, green and without additional light. The effect of exposure to sound on the plant has a fairly good influence on the height of the stem, stem width and number of leaves compared to plants that are not given sound exposure and in plants that are given additional LED light then the sound produces better plant growth compared to plants that only given additional lights or just given a sound.
ANALISIS SEISMOTEKTONIK UNTUK PENANGGULANGAN DAERAH RAWAN BENCANA GEMPA BUMI Jayadi, Harsano; Soehaimi, Asdani
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.v3i1.13370

Abstract

Tana Toraja located in the compression belt of two active fault seismic source zones. There are Palu- Koro and the Walanai faults have resulted the eastward, movement of the Banggai-Sula micro continent since neogen time. The field observations of the neotectonic holosen age were  found as the river deposit and beachsand terraces and the fault  fan structure where there  are consist of three teracces units  which the maximum high of  the oldest terrace (±100.000 years)  about of 12 m and the minimum about of  7 m. Base on the differences high of the maximum terrace  units in the Salu Sadang and Rongkong rivers, so  the maximum magnitude earthquake displacement (md) can be calculated at every fault segments. The evaluation of geological structures and earthquake data, this region can be devided  into four seismic source zones there are the salu sadang, The  Buttu Karoa-Lamasi Sabang  active faults, the old volcano tectonic earthquakes of the Buttu-Karoa-Kalumpang Mamuju and the volcano tectonic earthquakes of the Limbong Seismic Zource Zone. Base on tne neotectonic condition and the existing of seismic source zones above, Tana Toraja and surrounding area is one of the potential seismic hazard area in the South Sulawesi region which must be have more attention.
PERBANDINGAN SISTEM KENDALI SUHU INKUBATOR BAYI DENGAN METODE ZIEGLER-NICHOLS DAN METODE TUNING COHENG-COON Zulfaniar, Zulfaniar; Aulia, Nur
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.v7i1.13898

Abstract

In the world of helath, especially in the handling of newborns, an incubator is one of the right instruments to evercome the problems in handling newborns, newborns cannot produce body heat naturally. Which makes the stability of the body of a newborn is disrupted. So one of the important parameters to be controlled in this probem is the incubator room temperature conditions. The baby incubator is used to get the effect of heat on the baby body. The system that has been used in the incubator to date is still simple, with the aim of using a control system ini making comparisons of 2 methodes is the tuning coheng-coon method and the zegler Nichols method. Obtained respectively the values of Pi, Ki and Kd in the tuning coheng-coon method are 157, 48 and 3.27 and the Ziegler Nichols method respectively the Pi, Ki and Kd constant are 90, 50 and 0 with the resultang constant values capable of of producing a very small error state value of more than 1% at each set point that uses the tuning coheng-coon method so that the method has the advantage of a faster response. 
ANALISIS PERKEMBANGAN PASIEN COVID-19 MENGGUNAKAN SEGMENTASI CITRA RONTGEN TORAKS Sumarti, Heni
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.v7i1.13858

Abstract

Chest X-ray segmentation using the contour active method has been widely carried out and produces additional information for data analysis. This information can be used to determine the development of COVID-19 patients while in the hospital. The method in this study was divided into three, first taking X-ray images of patients COVID-19, second image segmentation using the active contour method then calculating area segmentation, and third calculating the deviation area in image segmentation then analyzed. The results showed that while patient in the hospital for 1-8 days 89% of patients had  50% decrease area clean lung, whereas only 11% of patients increased clean lung repair by about 20 - 31%. Patients who have improved this condition were hospitalized in a fairly severe condition and treated for 8 days. In general, days 1-8 patients determine at the hospital is when patients get worse showed by an decrease clean lung arean more than 50%, while days 8-14 is when the patient gets better or dies.
MODEL NON LINEAR KEJADIAN CURAH HUJAN EKSTRIM DI KOTA PALU MENGGUNAKAN PROGRAM JAVA Nurrahmi, Sitti; Farhamsa, Dedy; Iqbal, Iqbal
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.v7i1.14138

Abstract

Weather and climate are the main factors for influence on various activities of life. The increasing of human activity has made the change in components biophisical environment, which are major contributors about climate change. The most important of the process of climate change is the emergence of the extreme, that one example is, extreme rainfall, that the rainfall have more than 50 mm intensity / day. To know characteristic of climate change occurring, needed a model who represented data rainfall in various meteorology station. Based on it, author make a modeling the extreme rainfall in Palu city using Java programming. The results of the extreme rainfall predictions 10 years using software models and Java programming, in Palu city with using fourier series function order 5 predicted the extreme rainfall will likely increase every year with the highest event are  2 times / years. The prediction was featuring the precisely  value with the real data. So, we can conclude that the extreme rainfall model tends to be accurate and can be used to predict the extreme rainfall in Palu city and in other cities.
PENGARUH KOMPOSISI DAN UKURAN PARTIKEL TERHADAP KUALITAS BRIKET KULIT DURIAN DAN TEMPURUNG KELAPA Ashar, Muh.; Sahara, Sahara; Hernawati, Hernawati
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.v7i1.13964

Abstract

Research has been carried out on the utilization of durian rind and coconut shell waste by turning it into bio briquette. This study aims to determine the amount of heat, water content and duration of combustion in order to obtain the best quality. Samples were made with the composition of durian rind, coconut shell, and tapioca flour as an adhesive. Each sample was carbonized with a combustion drum and furnished at a temperature of 2500C, then grinding, sifting, and molding were carried out. The composition variations used are (20:80)%, (40:60)%, (60:40)%, and (80:20)% with particle sizes of 100 mesh and 170 mesh, the adhesive mass used is 3 gr. The results of the study, testing the calorific value using the bomb calorimeter obtained the best quality in the composition (80:20)% with a size of 100 mesh of 6482,76 cal/gr, the results of testing the moisture content using an 1050C oven obtained the best quality in the composition (80:20)% with a 100 mesh size of 6,77% and the longest burning test with the longest burning duration in composition (20:80)% with a 170 mesh size of 211,8 minutes/gr.
PENGGUNAAN KONTROL PID DENGAN BERBAGAI METODE UNTUK ANALISIS PENGATURAN KECEPATAN MOTOR DC Irhas, Muhammad; Iftitah, Iftitah; Azizah Ilham, Siti Asyiqah
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.v7i1.13846

Abstract

DC motor is a motor tha is widely applied to industrial and household equipment because of the level of flexibility and fairly easy operation. But in terms of speedDC motrs have the disadvantage that the speed is not constant along with the addition of the load so to overcome this problem a controller is needed in order to obtain a constant speed in accordance with the desired set poit. PID control is a control that serves to minimize the error rate of a plant. This control consists of Controller parameters P, I, D where the value of this parameter determines the level of response of a control to the plant. So it is necessary to engineer the tuning parameters with various methods so that the value of a parameter is in accordance with the palnt. Based on the description above, the purpose of this study is to review various tuning methods in response to the response of a DC motor.  
PERBANDINGAN LAJU KOROSI PAKU BETON PADA MEDIUM AIR PDAM DAN AIR LIMBAH AC (AIR CONDICIONER) Tajudin, Suaib; Rahmaniah, Rahmaniah; Ihsan, Ihsan
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.v7i1.13980

Abstract

The purpose of this study was to compare the corrosion rate of concrete nails with the medium of PDAM water and AC wastewater. The method used is the weight loss method. Immersion of the sample is carried out for 30 days and measurements are carried out and corrosion rate analysis is carried out every 10 days. Nail corrosion rate with PDAM water medium was obtained at 4.06 × 10-7 mm / year, while the corrosion rate of nails with AC wastewater medium based on variations in PK size and temperature size regulation on each AC obtained the largest corrosion rate on AC PK 1 ½ with a temperature of 18oC 4 × 10-7 mm / year, a temperature of 190C 2.66 × 10-7 mm / year, 20oC, 5.77 × 10-7 mm / year and a temperature of 21oC, 5.88 × 10-7 mm / year. AC PK 2 with a temperature of 19oC, 5.26 × 10-7 mm / year, a temperature of 20oC, 7.97 × 10-7 mm / year, a temperature of 21oC, 4.95 × 10-7 mm / year and a temperature of 22oC 3.49 × 10 -7 mm / year. For AC PK 1 with a temperature of 20oC, 3.77 × 10-7 mm / year, a temperature of 21oC 5.74 × 10-7 mm / year, a temperature of 22 oC, 8.11 × 10-7 mm / year and a temperature of 23oC 8.96 × 10-7 mm / year.
PENGUKURAN DAN ANALISIS DOSIS PROTEKSI RADIASI SINAR-X DI UNIT RADIOLOGI RS. IBNU SINA YW-UMI Rahmayani, Rai; Sahara, Sahara; 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.v7i1.14118

Abstract

This study aims to determine the dose of radiation in a large room with measurements from various directions, knowing the great wall by measuring the absorption of a scattering outdoors doses, and determine the radiation dose received by radiation workers in radiology installations. This study uses Surveymeter, the meter, the best ruler X-rays, and phantom. In measurements carried out three phases: the first measure exposure dose in a room with a distance of 1 m and 2 m with a voltage of 50 kV, 55 kV and 60 kV, the second stage taking the raw data of radiation received by workers of the head of the installation and the third stage knowing absorption wall by measuring the scattering dose outdoors. Based on the research that has been done, it can be concluded that the largest radiation dose is on the right side of the tube either with an object that is 33 µSv/h or without an object that is 33.6 µSv/h at a distance of 1 m and a voltage of 60 kV, but the value at both the other positions, namely the left and front side of the plane do not have such a large difference that it can be stated that the values obtained at the three positions are almost the same at the same voltage and distance, the largest dose received by operator IV is 0.215 mSv/h and the average dose the average received by workers is 0.2 mSv/h in accordance with Regulation of BAPETEN No.4 of 2013, and the ability of the walls to absorb outdoor radiation doses is very good as seen from the results of undetectable radiation measurements because all are absorbed by the wall.  

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