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Jurnal Fisika FLUX
Published by Universitas Lambung Mangkurat
ISSN : 1829796X     EISSN : 25411713     DOI : -
Core Subject : Science, Education,
Earth & Planetary Sciences Education Materials Science & Nanotechnology Physics
Jurnal Fisika FLUX is a peer-reviewed, open access journal that publishes original research articles, review articles, as well as short communication in all areas of physics including applied physics, which includes: physics instrumentation and computation, biophysics, geophysics, physics materials, theoretical physics, and physics education. Journal use single peer reviewed to publish. This journal is published by Universitas Lambung Mangkurat Press. ISSN 1829-796X (print) and ISSN 2541-1713 (online) Jurnal Fisika FLUX is published twice a year. Articles will be peer reviewed first. Once ready to be published immediately on the current edition.
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Search results for , issue "Vol 20, No 3 (2023): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat" : 10 Documents clear
The effect of shielding material density in muon tomography Sitti Yani; Dadan Hidayatuloh; Tony Sumaryada
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 20, No 3 (2023): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v20i3.16809

Abstract

In recent years, the use of high-penetrate cosmic-ray muons has been used in many applications to investigate the internal structure and composition of large material. The muon attenuation is based on multiple Coulomb scattering. This study was aimed to investigate the effect of massive shielding material composition in muon tomography. Muon with various energies between 1 MeV to 100 MeV was used as a source located directly above the shielding material with different density and composition. The output of scattered muon was scored in 2 and 5 km after the material. The simulation was performed using particle and heavy ion transport system (PHITS) software developed by Japan Atomic Energy Agency. The attenuation and scattering of the muon depends predominantly on the shielding material density. The muon energy and flux was decreased with increasing depth of the muon detector. This muon tomography can be applied in investigating the structure and internal composition of unknown materials such as volcanic structures in Indonesia.
Controlling the pH and Temperature of Aquarium Water for Discus Fish Farming Based on ATMega328 Microcontroller with Internet of Things (IoT) System Masthura Masthura; Abdul Halim Daulay; Dickiy Akbar
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 20, No 3 (2023): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v20i3.14338

Abstract

Research that aims to produce and determine the performance of controlling the pH and temperature of aquarium water for discus fish cultivation based on the ATMega328 Microcontroller with the Internet of Things (IoT) system has been carried out. This system will only control the temperature and pH of the fresh water in the aquarium. The type of fish used in this study was Discus fish, with a standard living temperature of 28 – 30 °C and a pH of 5.5 – 7. The DS18B20 sensor was used as a temperature sensor, and the 4502C sensor was used as a water pH sensor. When the tool runs all components, the system can provide an excellent response to changes in temperature and pH of the water in the aquarium that are out of the expected range. This condition is indicated when the pH level of the aquarium water is out of range. Then, the system will turn on pumps one and two, which are turned off again if the pH level is within the range. If the water temperature is out of range, then the system will turn on the heater, which is then turned off and returned by the system if the water temperature is within the range. This condition is evidenced when testing the temperature sensor; the DS18B20 can read the temperature and pH conditions of 4502C water, can read acid and base levels in aquarium water, and then sends the results of the data reading to the internet-based Blynk application, which can provide an excellent response.
Use of K-Means Cluster to Analyze Electrical Properties and Soil Texture Melon Plantation Nelsa Indah Artamevia; Mimin Iryanti; Yuyu Rachmat Tayubi
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 20, No 3 (2023): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v20i3.15784

Abstract

West Kalimantan is a province in Indonesia that has 1.73 hectares of peatland. In utilizing peat soil, it is necessary to know several indicators, such as electrical conductivity and soil texture, to see whether or not it is suitable for plantation land. This study examines the relationship between electrical conductivity and soil texture supported by the K-Means Cluster statistical method on peat melon plantations in The village of Rasau Jaya, West Kalimantan. Electrical conductivity measurements were carried out using a conductivity meter, soil texture classes were determined using the USDA (United States Department of Agriculture) classification method, and clustering was used the K-Means Cluster statistical method. Besides that, the physical characteristics of the soil were observed visually using the Munsell Soil Color Chartbook. The research showed that melon plantation soil has two layers with straight-line delineation. The first layer has a range of electrical conductivity values of 0.14 dS/m, has a clay texture, and has a color code of 10 YR 2/1. The second layer has a range of electrical conductivity values of 0.07 dS/m, has a sandy loam texture, and has a color code of 10 YR 2/1
Investigating The Presence Of Groundwater At Landslide Affected Areas Using The 2D Geoelectrical Method (Case Study Of Argopuro Mountain Slope At Suci Village, Jember) Nurul Priyantari; Agus Suprianto; Irdiana Faiqah
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 20, No 3 (2023): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v20i3.16078

Abstract

The presence of groundwater and landslides have a close relationship, especially in the context of the influence of groundwater on slope stability. High groundwater levels can cause an increase in hydrostatic pressure on slopes, reduce soil carrying capacity, and reduce friction between soil particles. A decrease in the carrying capacity of the soil causes a decrease in the carrying capacity of the soil on the slopes. This condition can lead to a decrease in slope stability and the potential for landslides to occur. Therefore, it is essential to map subsurface conditions in landslide-affected areas and identify the potential aquifers. One of the geophysical methods that can describe this is the resistivity geoelectric method. The working principle of the resistivity geoelectric method is to inject an electric current into the soil through a pair of current electrodes and then read the electric potential difference through a pair of potential electrodes so that the resistivity value in the medium below the soil surface can be determined. Data collection was carried out in three tracks. The resistivity value on the first track is in the range (4.09 – 0.5) Ωm and reaches a depth of 31.6 m. The resistivity value on the second track is in the range (6.91 – 105) Ωm and reaches a depth of 31.6 m. The resistivity value on the third track is in the range (13.1 – 512) Ωm and reaches a depth of 15.9 m. Finally, there are also indications of the presence of groundwater in the first and second tracks, which are characterized by low resistivity values in the resistivity cross-sectional images
Synthesis and Modeling of Adsorbents from Natural Materials for Heavy Metal Lead in Mahakam River Water Samples Rahmawati Munir; Ahmad Zarkasi; Dadan Hamdani; Sahara Hamas Intifadhah; Akbar Perdana; Alris Sanca Pratama Putra
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 20, No 3 (2023): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v20i3.16934

Abstract

The Mahakam River is a source of water for the people of Samarinda, East Kalimantan. However, Mahakam river water is not classified as quality water. As a result of industrial mining activities, river water is polluted by heavy metals such as Lead (Pb). These problems can be overcome by using the adsorption method to purify water. The adsorption method has become popular in adsorbing heavy metals contained in polluted water. The purpose of this study was to synthesize natural materials which are adsorbents for the heavy metal Pb. The materials used as natural adsorbents are household waste, namely ashes (AG), egg shells (CT), tea dregs (AT). Based on the results of the Atomic Absorption Spectroscopy (AAS) characterization test, data were obtained on the decrease in the concentration of heavy metal Pb in samples of Mahakam river water. The initial concentration of 1.8 mg/L became 0.24 mg/L (10 gr adsorbent AG) and became 0.17 mg/L (10 gr adsorbent AG+CT). While the use of AT adsorbent was applied to artificial waste with an initial concentration of 40 mg/L to 0.002 mg/L. Furthermore, according to data measurement, modeling was carried out using the Langmuir Isotherm and Freundlich Isotherm models to determine the adsorption capacity of tea dregs, eggshells, and ashes.
A Comparison of CT-Scan Output Doses and Doses Given to Kidney Stone Patients Ronel Arida Missinychrista; Kadek Subagiada; Erlinda Ratnasari Putri
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 20, No 3 (2023): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v20i3.17098

Abstract

Kidney stones are a disease which occurs in the urinary tract and are hard accumulations like stones that form along the urinary tract and can cause pain, bleeding, obstruction to the flow of urine or infection. Generally, the method of diagnosis given by doctors to patients with kidney stones is through a CT scan. However, so far it is not known how much radiation the patient receives during the CT scan procedure. Therefore, in this study an analysis was carried out regarding the comparison of the dose issued by the CT-Scan with the dose received by the patient on the CT-Abdomen examination, an analysis of the patient dose based on the SSDE value on the CT-Abdomen examination, and an analysis of the total dose received by the patient on CT-Abdomen examination. The data used in this study is data downloaded from the official website page of the "Data Science Institute American College of Radiology" at https://www.acr.org/. Based on the results of existing research, the researchers drew the conclusion that the doses released by the device tend to be lower than the doses received by patients, the maximum SSDE value is 28.7550 mGy and the minimum SSDE value is 6.7978 mGy, the maximum DLP value is of 657.1314 mGy.cm and the minimum DLP value is 62.5992 mGy.cm. This should be a concern for radiation workers to pay attention to the dose received by the patient during the examination.
Distribution of Ground Temperature in the Geothermal Manifestation Area of Lompio, Donggala Regency, Central Sulawesi Province Sitti Rugayya; Badaruddin Badaruddin; Asrafil Asrafil
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 20, No 3 (2023): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v20i3.12173

Abstract

The distribution of non-volcanic geothermal energy is widely found on the island of Sulawesi, one of which is in Lompio Village, Sirenja District, Donggala Regency, Central Sulawesi Province. It is important to study the geothermal potential in the village in order to learn how the geothermal system works. This study aims to identify the distribution pattern of temperature distribution in shallow soil depths as a manifestation of the geothermal system below the surface and its relation to geothermal manifestations that appear on the surface. This research was carried out through a series of field observations and direct soil temperature measurements in the study area using a thermometer. The results show that the distribution pattern of land temperature distribution in the high-temperature zone is associated with the presence of geothermal manifestation points on the surface (hot springs). The association of temperature and manifestation is possible because the presence of hot springs is an indication of a weak zone for the release of hydrothermal fluid from the geothermal system, which is correlated with the geological structure in the research area.
Effect of Soil Geochemical on The Chemical Properties of Lignocellulosic Oil Palm Fibers Tetti Novalina Manik; Sri Wahyuni; Nurul Hikmah; Ahmad Bakri; Simon Sadok Siregar
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 20, No 3 (2023): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v20i3.16068

Abstract

Correlation of geochemical of soil and chemical properties of oil palm fiber from the trunk, empty fruit bunches and fronds has been investigated. Frond samples come from dryland and wetland to have more significant results. The chemical properties of topsoil and lignocellulosic fiber were investigated by FT-IR. The geology of soil was investigated by 1D Geoelectric. Measuring of the content of cellulose and lignin according to SNI 14-0444-1989 and SNI 0492-1989-A. Base on research, the geochemical properties of soil are correlated with the chemical properties of the lignocellulosic fiber of the oil palm trees. The cellulose content of wetlands fiber has the lowest than other fibers. This is caused by soil nutrients which are composed of carbonyl and phenolic compounds. Alkalization treatment on the fiber has increased the cellulose content of each fiber. The alkalization treatment increases the adhesive properties. Based on the geology and chemical properties of soil, the land of oil palm trees is composed of clay minerals composed of Si-O-Si, carbonyl, phenol bonds and others.
Application of the Self-Potential Method to Know the Distribution and Direction of Leachate Flow in the Alak Final Processing Site (TPA) Area, Kupang City Yanti Boimau; Wenti Marlensi Maubana
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 20, No 3 (2023): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v20i3.14893

Abstract

The research using the Self-potential method has been carried out at the Final Processing Site (TPA) area of Alak District, Kupang City, East Nusa Tenggara. The purpose of this study is to determine the direction of leachate waste flow and distribution. Data acquisition in this study used a closed-loop system in the process of collecting potential data. This closed-loop system means that potential data collection starts at one point and will end at that point. There are 3 loop paths with a distance of 10m between the porous spot electrodes. Based on the potential distribution value of the isopotential map, the lowest potential value is -35 mV, and the highest value is 40 mV, therefore, this study area can be assumed that the leachate flow direction is from the southeast to the southwest. This case is supported by the influence of the topographical effects where the subsurface fluid flows from a high place to a low place. Based on the results of this study, the leachate flow direction and distribution can provide information for mapping high-risk areas of contamination at the Final Processing Site (TPA) in Alak, Kupang City, East Nusa Tenggara.
Determining Bouncepoints in the South of Kalimantan Island for SS Wave Phase Fahruddin Fahruddin; Gusti Aldy; Muhammad Rasyid Ridho; Ibrahim Ibrahim; Nurlina Nurlina; Sudarningsih Sudarningsih; Mustaid Yusuf; Syamsurijal Rasimeng; La Ode Safiuddin
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 20, No 3 (2023): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v20i3.17280

Abstract

The bouncepoints or reflection point of a seismic wave is very important to determine a research area that utilizes SS precursors data. In this study the data used has criteria, to obtain good data. Hence, the research results are also good, while the criteria are: the depth of the earthquake source is limited to less than 75 Km to reduce interference with precursor waves that arrive earlier (sSdiff) and it is easier to determine the bouncepoint. The earthquake source is more than 5.8 Mw to get a good SS phase signal-to-noise ratio (SNR). The best distance between the source and the receiving station is ≥ 1000 to avoid interference with waves reflected on the surface (Ss670s and Ss400s) and ≤ 1650 to avoid interference with ScSScS precursors. The location of this study is in the south of the island of Kalimantan (15 bouncepoints) and there are 3 points data whose bouncepoints is outside the study area. Earthquake data obtained from IRIS (Incorporated Research Institutions for Seismology). The research data for earthquake centers are in Australia, New Zealand and others, for earthquake measuring stations in Europe and Asia.

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