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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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Articles 555 Documents
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Total Suspended Solid (TSS) Study in Gajah Mungkur Reservoir Based on Landsat Image Analysis Astuti, Nurul; Murti, Sigit Heru; Widayani, Prima
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 21, No 2 (2024): 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.v21i2.17749

Abstract

Total Suspended Solid (TSS), as one of the physical parameters of water quality, can also become an indicator in more comprehensive research themes. TSS is closely related to the process of erosion and sedimentation. One of the reservoirs that is experiencing serious problems with sedimentation is WGM. In terms of physical changes, alterations in water quality involve the introduction of both organic and inorganic solid particles, leading to elevated water turbidity and diminished penetration of sunlight into the water body. Remote sensing techniques can indirectly estimate and map TSS in bodies of water. Landsat imagery has been widely used in TSS studies. Not only is it able to identify water turbidity, but it also has a long time series and convenient data accessibility. The purpose of this research is to examine the TSS equation in the form of Normalised Suspended Material Index (NSMI) and the Syarif Budhiman Algorithm to obtain a comparison of results that are suitable for application to the waters of WGM using Landsat imagery. The results showed that the Syarif Budhiman Algorithm is considered more suitable to be applied to the study site based on statistical analysis using Landsat image data and field TSS sample data. The accuracy test results for the two equations did not show significant differences. The Syarif Budhiman equation showed a value of 37.87, and the NSMI equation of 37.47. However, the coefficient of model determination was 0.251 for NSMI and 0.340 for Syarif Budhiman. The distribution of TSS at the study site is generally homogeneously distributed with small concentrations ranging from 0-20 mg/L in the middle side of the reservoir. While the TSS class > 100 mg/L is scattered on the edge of the reservoir in Pondok, Keduang, Kepuh Wiroko, Temon, Bengawan Solo Hulu, Alang, and Kedungguling sub-watersheds
Design and Construction of an Internet of Things Based Electrical Power Usage Monitoring System Yuniarto, Abdul Hakim Prima; Agustina, Elvinda Bendra; Inayah, Inayatul; Rohman, Nur; Rizqiyah, Mufidah
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 21, No 1 (2024): 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.v21i1.15366

Abstract

Rancang bangun sistem monitoring penggunaan daya listrik berbasis internet of things telah berhasil dilaksanakan. Perancangan ini bertujuan untuk memantau peralatan penggunaan daya listrik di laboratorium elektronika dan instrumentasi, program studi Fisika, ITSNU Pekalongan. Perancangan dimulai dengan merancang pusat dari sistemnya yang terdiri atas modul ESP32 dan sensor daya PZEM-004T, pusat sistem tersebut dihubungkan dengan terminal listrik. Monitoring pengunaan daya listrik melalui platform Thingsboard. Sistem saling terhubung melalui jaringan internet, sehingga dapat diakses dimanapun dan kapanpun. Pengujian sistem dilakukan dengan mengukur daya pada beberapa jenis peralatan elektronik dengan menggunakan sensor PZEM-004T. Kemudian data tersebut dibandingkan dengan data pengukuran menggunakan alat ukur yang sudah umum di pasaran, seperti multimeter dan wattmeter. Berdasarkan hasil pengujian yang dilakukan yaitu pembacaan data oleh sensor PZEM-004T cukup akurat dengan eror dibawah 5% jika dibandingkan dengan alat ukur yang sudah beredar dipasaran.
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.
Interpretation of Subsurface Structure Based on Magnetic Anomaly Analysis as Geothermal Manifestation in Lake Linting Deli Serdang Sitompul, Yusril Padli; Sirait, Ratni; Lubis, Ridwan Yusuf
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 21, No 2 (2024): 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.v21i2.18592

Abstract

ABSTRACT- Research has been carried out with the aim of determining the type of subsurface lithology of the geothermal area in Lake Linting Deli Serdang, to determine the geological structure, as well as the type of rock that functions as a reservoir for geothermal manifestations. Data processing uses geomagnetic methods with a Proton Precission Magnometer (PPM) model GEM Systems type GSM-19T, starting with IGRF corrections and daily corrections as well as qualitative and quantitative interpretation. Based on 2D modeling of subsurface lithology, the reduction cross-section model to the poles of the A-A' path is dominated by dacite rock with a susceptibility of 0.003 cgs, andesite rock has a susceptibility of 0.006 cgs, and pyroclastic rock has a susceptibility of 0.001 cgs. The reduction cross-section model to the poles of the B-B' path is dominated by pyroclastic rocks with a susceptibility of 0.001 cgs, dacite rocks with a susceptibility of 0.003 cgs, and andesite rocks with a susceptibility of 0.006 cgs. The geological structure based on the pole-reduction cross-section model of the A-A' and B-B' trajectories is characterized by a graph of ups and downs from positive magnetic intensity to negative magnetic intensity, which is estimated to be a normal fault and the rock that functions as a good reservoir is dacite rock, because Dacite rock has good porosity and permeability, so that geothermal heat can be heated and accumulated well, this is based on the fact that it has a low anomaly value with an anomaly value of -44 nT. This rock is a type of volcanic igneous rock that makes up the geothermal reservoir zone
Analysis of Bio-Coke Proximate from Sago Drugs and Patchange Waste Isa, La; Asmin, La Ode; Dedyerianto, Dedyerianto
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 21, No 1 (2024): 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.v21i1.12661

Abstract

Bio-coke organic waste Sago dregs and Patchouli waste are produced by the pyrolysis method. In this study, proximate analysis of bio-coke was carried out with different comparisons of the composition of sago dregs and patchouli waste. Making bio-coke begins with cleaning and then drying the sago pulp and patchouli waste under direct sunlight. The pyrolysis process uses an initial temperature of 110 0C which is maintained for 15 minutes. Then the temperature was set at 600 0C maintained for 15 minutes and cooled at room temperature. The quality of bio-coke was obtained from a proximate analysis consisting of the value of water content, ash, volatile matter, fixed carbon, and calorific value. The results showed that the highest calorific value was a composition ratio of 5:1, which was 8,727.84 Cal/gr, with the lowest moisture content, volatile matter, and ash content, namely 2.24%; 30.74%; and 3.69%, and the highest bound carbon content is 63.3%.
Analysis of the Physical, Chemical and Microbiological parameter of Peat Water Processed by the Single Flow Ultrafiltration Wianto, Totok; Nugrahadi, Dodon Turianto; Wahyono, Sri Cahyo; Gunawan, Gunawan; Azwari, Ayu Riana Sari; Arrahimi, Ahmad Rusadi; Apriana, Susi
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 21, No 2 (2024): 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.v21i2.18614

Abstract

Peatlands have a crucial role in the global regulation of climate, the sequestration of carbon, and the conservation of biodiversity. Daily human activities and climate change have caused various environmental changes and ecological relationships for peatlands. An important thing to worry about is the decline in water quality, which harms the health and welfare of local communities that depend on clean water sources and drinking water from natural water. Additionally, the escalating demand for clean water necessitates substantial efforts in processing peatland water resources. The degradation in water quality harms the ecology and health of humans who use it for daily needs. Single Flow Ultrafiltration technology has emerged as a promising water treatment method, showing great potential in treating peat water while maintaining the ecological balance of peatlands. This research aims to evaluate the effectiveness of a combined treatment process consisting of filtration, absorption, microfiltration, and single-flow ultrafiltration. The application of this technology is carried out in the South Kalimantan region, with water processing stages, namely raw water filtration, semi-finished raw water filtration, ultrafiltration, and an ultraviolet irradiation process at the final stage so that the water is ready for consumption. Using both techniques, empirical methodologies were utilized to analyze the results of water quality and production capacity. This study proposes single-flow ultrafiltration to treat peat water for daily use. This research shows that the single-stream ultrafiltration treatment method for peat water gives a better water quality result than ordinary ultrafiltration treatment. This is indicated by the percentage difference in decreasing TDS values by 149%, turbidity by 200%, and color by 500%, increasing pH by 14.9%, decreasing nitrite by 135%
Analysis of a Cylinder Size Effect on the Fluid Flow Profile Around the Cylinder with OpenFOAM Putri, Kania Nugraha; Mahmudah, Rida SN
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 21, No 1 (2024): 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.v21i1.16555

Abstract

Planning and analysis of infrastructure involving cylindrical shapes such as bridge platform pillars and offshore sea piping systems are needed to ensure user safety. This study aims to determine the effect of variations in cylinder diameter on fluid flow profiles with OpenFOAM software in laminar conditions with Reynolds numbers 60, 100, and 200. The computational domain used is a rectangle with a length of 32D and a width of 20D, where D is the cylinder diameter, which in this study is varied by D, 2D, and 4D. We placed the cylinder at a distance of 8D in the direction of the x-axis and a length of 10D in the direction of the y-axis. The simulation results show that variations in cylinder diameter affect the fluid flow profile, and the drag coefficient increases with increasing variations in cylinder diameter. In addition, variations in diameter also affect the formation of vortex structures as the Reynolds number increases.
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.
Effect of Gamma Irradiation (Cesium-137) on the Properties of Chemical Functional Groups from Collagen Extraction of Snakehead Fish Scales (Channa striata) Ferdianti, Andi Tasya; Fuadi, Nurul; Fitriyanti, Fitriyanti; Abidin, Kurniati; Jumardin, Jumardin; Isradiati, Dwi Febri
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 21, No 2 (2024): 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.v21i2.18122

Abstract

This study aims to determine the absorption spectrum of the functional groups of snakehead fish scale collagen before irradiation and the effect of the dose of Cesium-137 irradiation on the functional groups in snakehead fish scale collagen. The extraction method used is acid extraction. Measurement of the absorption spectrum of collagen samples from snakehead fish scales using an FTIR spectrophotometer. Samples were irradiated using doses of 10 mGy, 30 mGy and 50 mGy. The results of the functional group values before irradiation produce amide A, amide I, amide II and amide III which fill the absorption area of the functional group. The results of the functional group values produced after irradiation for a dose of 10 mGy produced amide I, amide II and amide III which filled the absorption area. Amide A and amide B do not fill the absorption region at a dose of 10 mGy. Doses of 30 mGy and 50 mGy produced amide A, amide I, amide II and amide III which filled the absorption area. Amide B did not fill the absorption area at doses of 30 mGy and 50 mGy. Amide groups that are not detected or do not meet standard collagen functional group standards can be caused by the chemical composition of the fish scale extraction process.
An Internet of Things (IoT)-based Microclimate Parameter Measurement Tool (Temperature, Humidity, and Sunlight Intensity) for Coastal Areas Zarkasi, Ahmad; Nurhanafi, Kholis; Syahrir, Syahrir
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 21, No 1 (2024): 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.v21i1.17929

Abstract

Climate parameters such as temperature, humidity, and solar light intensity can affect various things in the environment and its components such as vegetation, animals, and humans. In this research, an internet of things (IoT)-based climate parameter measurement tool has been created. The use of IoT systems offers flexibility and ease of access for observers to conduct monitoring. The designed measuring instrument has been tested and compared with a standardized measuring instrument, namely the Mastech MS6300 Environment Multitester. The test results show accuracy values of 97.1%, 95.1%, and 87.2% for temperature, humidity, and sunlight intensity measurements, respectively. The results of the measuring instrument design are implemented in coastal areas (beaches). From the results obtained, the three parameters measured tend to be stable in the morning, afternoon, and evening. Meanwhile, during the afternoon the measured climate parameters are quite fluctuating. In general, the designed measuring instrument has been able to work well and is feasible to be implemented directly.

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