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Tri Kusmita
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Jurnal Riset Fisika Indonesia
Published by Universitas Bangka Belitung
ISSN : 27761460     EISSN : 27976513     DOI : https://doi.org/10.33019/jrfi.v1i2
Core Subject : Science,
Astronomy Computer Science & IT Earth & Planetary Sciences Materials Science & Nanotechnology Physics
The Jurnal Riset Fisika Indonesia (JRFI) (e-ISSN: 2797-6513; p-ISSN: 2776-1460) is an open access and peer-reviewed journal, published by Department of Physics - Universitas Bangka Belitung, which is a dissemination medium for research result from scientists, engineers, and practitioners in many fields of physics. JRFI is a biannual journal issued on December and June. The editors welcome submissions of papers describing recent theoretical and experimental research related to: (1) Theoretical articles; (2) Empirical studies; (3) Practice-oriented papers; (4) Case studies; (5) Review of papers, books, and resources. Focus and scope for JRFI as follows: Theoretical physics Computational physics Material physics Geophysics Instrumentation Applied physics
Arjuna Subject : Fisika dan Astronomi - Fisika dan Astronomi (Lain-Lain)
Articles 112 Documents
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Advances Systematic Literature Review (SLR): Kemajuan Teknik Lapisan Semprot Pada Sel Surya Ditinjau dari Aspek Efisiensi dan Prospek Komersialisasi Kurniawan, Adi; Indriawati, Anisa
Jurnal Riset Fisika Indonesia Vol 5 No 1 (2024): Desember 2024
Publisher : Jurusan Fisika, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jrfi.v5i1.5713

Abstract

This systematic review examines recent developments in spray-coated solar cells through analysis of 127 peer-reviewed studies (2019-2024). Our findings highlight significant advances in ultrasonic spray techniques, achieving thickness variations of ±2.5% and perovskite-based device efficiencies reaching 21.7%. Large-scale implementation demonstrated successful coating areas of 1.5 m² while maintaining 90% of lab-scale performance. Despite promising results, stability remains challenging, with typical efficiency losses of 15-20% over 1000 hours. Current trends suggest commercial viability within 3-5 years, contingent upon advances in materials and processing techniques.
Pengaruh Konsentrasi H₂SO₄ pada Metode Hidrolisis Asam Sintesis Nanopartikel Selulosa Berbasis Limbah Kertas Konvensional Roehafi, Firza; Latupapua, Flourenchia Charollyne; Zundia, Zundia; Aldila, Herman
Jurnal Riset Fisika Indonesia Vol 5 No 1 (2024): Desember 2024
Publisher : Jurusan Fisika, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jrfi.v5i1.5716

Abstract

Limbah kertas pada dasarnya memiliki potensi untuk dimanfaatkan sebagai sumber selulosa dengan kandungan yang cukup tinggi sebesar 64,84%. Sintesis nanopartikel selulosa dapat dilakukan dengan proses hidrolisis asam dengan menambahkan larutan H2SO4 menghasilkan nanoselulosa berukuran 150-200×10-20 nm. Penelitian ini bertujuan untuk mengetahui karakteristik nanopartikel selulosa limbah kertas terhadap pengaruh dari perlakuan variasi konsentrasi H2SO4. Variasi sampel nanopartikel selulosa terbaik menjanjikan banyak manfaat dalam perkembangan teknologi material sebagai bahan ramah lingkungan. Selulosa diekstraksi menggunakan metode delignifikasi yang kemudian dilakukan proses hidrolisis asam dengan variasi konsentrasi H2SO4 1 M, 3 M, 5 M, dan 7 M untuk mengecilkan ukuran partikel selulosa menjadi nanopartikel selulosa. Variasi sampel diuji menggunakan FTIR, PSA dan SEM untuk mengetahui kandungan serta ukuran partikel termasuk morfologi sampel nanopartikel selulosa.
Pengaruh Penambahan Gliserol Terhadap Karakteristik Bioplastik Selulosa Batang Pisang/Kitosan Lestari, Diani; Puspita, Indah; Kusmita, Tri
Jurnal Riset Fisika Indonesia Vol 5 No 2 (2025): Juni
Publisher : Jurusan Fisika, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jrfi.v5i2.5194

Abstract

The usage of plastics has brought negative impacts to the environment. Therefore, the development of bioplastics is required to solve the impact of the usage of plastics on the environment. In this study, bioplastics were developed based on banana stem cellulose, chitosan, and glycerol. The objective of this study was to determine the content of banana stems cellulose, functional groups, and the effect of glycerol addition on the thickness, mechanical properties, and degradation rate of bioplastics. The research was started by extracting cellulose from the stem of banana. Bioplastic synthesis was performed by adjusting the addition of glycerol. The bioplastics were examined for thickness, mechanical properties, functional groups, morphology, and degradation. The results indicated that the extracted banana stems produced cellulose with a concentration of 93%. It was identified to have cellulose functional groups in the form of O-H, C-H, and C-O. However, the addition of glycerol to bioplastics increased the thickness, elongation, and degradation rate, but decreased the tensile strength. Bioplastics with the best characteristics were produced by applying 3 mL glycerol with a thickness of 0,578 mm, tensile strength of 0,149 MPa, elongation of 2,7%, and completely degraded for 10 days.
Sistem Monitoring Kesuburan Lahan Pertanian menggunakan Sensor pH, Sensor Suhu, Intensitas Cahaya, dan Kelembapan Tanah Berbasis Internet of Things Arifin, Samsul; Kurniawati, Neny; Agustiani, Reni; Elsandika, Gabriela
Jurnal Riset Fisika Indonesia Vol 5 No 2 (2025): Juni
Publisher : Jurusan Fisika, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jrfi.v5i2.5334

Abstract

This study developed an Internet of Things (IoT)-based soil fertility monitoring system to measure soil pH, soil moisture, and light intensity in real time, specifically for peatland agriculture. The system utilizes pH sensors, soil moisture sensors, and light intensity sensors calibrated with standard measuring instruments to ensure accuracy. Calibration results indicate that the pH sensor has an average error of 0.151%, the soil moisture sensor 1.11%, and the light intensity sensor 6.152%, with the latter exhibiting the highest variation due to environmental factors. Monitoring data shows that soil pH fluctuates more during the day (4.45–4.60) compared to a more stable range at night (4.75–4.80). Soil moisture remains high during the day at 85–90%, while at night, it gradually increases from 25% to 35%. Light intensity fluctuates between 9000–12000 lux during the day and approaches 0 lux at night. With high accuracy and real-time data accessibility, this system can assist farmers in optimizing irrigation, fertilization, and peatland soil management using IoT-based technology, ensuring sustainable agricultural productivity in peatland environments.
Simulasi Mikromagnetik untuk Menganalisis Dampak Bentuk Geometri terhadap Sifat Magnetik Material Permalloy vavionita, Fenni; Indriawati, Anisa; Aldila, Herman
Jurnal Riset Fisika Indonesia Vol 5 No 2 (2025): Juni
Publisher : Jurusan Fisika, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jrfi.v5i2.5430

Abstract

The development of ferromagnetic material technology is currently experiencing very rapid progress in various fields. One of the technological developments in the field of developing ferromagnetic materials based on thin layers of soft magnetic properties is used in the manufacture of recording heads, Magnetic Tunnel Junction (MTJ) contained in Magnetoresistive Random Access Memory (MRAM) and various sensors. One example of a ferromagnetic material with softmagnetic properties is permalloy. Permalloy has high permeability and a magnetic moment configuration that is easily controlled with small changes in the magnetic field. The advantage of permalloy is that apart from its high permeability, it also has low coercivity, resistance to oxidation, and significant anisotropic magnetoresistance. Therefore, in this research micromagnetic simulations have been carried out for thin layers using permalloy material. This research was carried out using the OOMMF (Object Oriented Micromagnetic Framework) software simulation to obtain the influence of the shape of the permalloy material on the magnitude of the magnetization value, coercivity value and anisotropy energy value produced due to the influence of an external magnetic field. The research results show that the shift in the magnetic wall domain in this study produces different magnetization values ​​in each form of permalloy material, the difference in shape also affects the field coercivity value and the anisotropy energy value. This can be seen when the external magnetic field applied is 5000 Oe, the magnetization value in form 1 is 0.99997, with a coercivity field of 680 Oe and an anisotropy energy value of 5.72 × 10-28, for form 2 it has a magnetization value of 0, 9806628, with a coercivity field of 1240 Oe and an anisotropy energy value of 3.55 × 10-25, and form 3 has a magnetization value of 0.942093 with a coercivity field of 960 Oe and an anisotropy energy value of 1.00 × 10-25. An increasing magnetization value indicates that the material is saturated, and the resulting anisotropy energy value becomes smaller.
Analisa Kandungan Boraks pada Tahu dengan Menggunakan Texture Analyzer dan Spektrometer Putro, Permono Adi; Susanti, Novita Dwi; Wulandari, Devia Putri
Jurnal Riset Fisika Indonesia Vol 5 No 2 (2025): Juni
Publisher : Jurusan Fisika, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jrfi.v5i2.5844

Abstract

Food safety is a critical issue in ensuring public health, especially in preventing contamination from harmful substances illegally added to food. One such hazardous additive is borax, which is sometimes used by unscrupulous food producers to preserve texture and shelf life, despite its known toxicity and prohibition in food products. This study aims to detect the presence of borax in tofu, a widely consumed protein source, by utilizing two analytical tools such as a Texture Analyzer and a Spectrometer. The Texture Analyzer was employed to evaluate the physical firmness of tofu, as borax is known to increase its hardness. The Spectrometer was used to confirm the chemical presence of borax. Results indicated that tofu samples containing borax showed significantly firmer textures compared to control samples, and the spectrometric analysis successfully detected borax compounds. These findings demonstrate that both instruments are effective in identifying borax contamination. The study recommends the sustainable development of rapid and accurate detection methods for other hazardous additives to enhance food safety monitoring and enforcement practices.
Analisis Pengaruh Penambahan Minor Aktinida Am-241 dan Np-237 pada Performa Sel Bahan Bakar Uranium Metalic U-10%wtZr Norman, Muhamad Tauffan Hidayatullah; Monado, Fiber; Ariani, Menik
Jurnal Riset Fisika Indonesia Vol 5 No 2 (2025): Juni
Publisher : Jurusan Fisika, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jrfi.v5i2.5864

Abstract

Nuclear reactors are capable of producing electricity using nuclear fuel in a sustainable system. Despite its benefits, the combustion of nuclear fuel in a reactor produces fission products known as nuclear waste. One type of nuclear waste is minor actinide, minor actinide is included in burnable poison so it can be recycled as additional fuel. This research was conducted to analyze the effect of the addition of minor actinides Am-241 and Np-237 on the burn-up performance of the Uranium Metallic U-10%wtZr fuel cell in a Gas cool-Fast Reactor with S-CO2 gas coolant and stainless steel cladding material. SS-316. The fuel pin was designed to be cylindrical with a diameter of 1.4 cm and then tested by adding 0 – 8% minor actinide to the fuel. Calculations were carried out based on the neutron transport equation using the SRAC program which produces survey parameters : Kinf value, burn-up level, conversion ratio, and atomic density throughout the burn-up period of 120 years. The results show that there is a slight increase in the Kinf value for each minor actinide addition at the beginning to the end of the burn-up period. The total atomic density of Am-241 and Np-237 in the fuel added with minor actinides decreased as the burn-up period ended. The addition of minor actinides did not have a significant effect on the neutronic performance of U-10%wtZr fuel but was able to reduce the amount of Am-241 and Np-237 elements at the end of the burn-up period.
Identifikasi Ketebalan Lapisan Lapuk Pada Zona Rawan Longsor Menggunakan Metode Geolistrik Tahanan Jenis (Studi Kasus: Ruas Jalan Kolaka-Kolaka Timur) triani, triani; Kamur, Sudarwin; Kusmita, Tri; Ningsih, Surya; Desiasni, Rita
Jurnal Riset Fisika Indonesia Vol 5 No 2 (2025): Juni
Publisher : Jurusan Fisika, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jrfi.v5i2.6337

Abstract

The Kolaka-Kolaka Timur road section serves as a vital connection among several districts in Southeast Sulawesi. This region is particularly susceptible to landslides during the rainy season, resulting in the road being obstructed by landslide debris. The objective of this research is to assess the thickness of the weathered layer, a critical factor contributing to landslides, as part of efforts aimed at mitigating such events. The research employs the resistivity geoelectric method utilizing a Wenner configuration with five passes. The electrode spacing is set at 7 meters, covering a total track length of 105 meters. Analysis of the measurement results indicates that the weathered layer across each track comprises alluvial deposits originating from the weathering of Sekis rocks, characterized by a resistivity of less than 20 Ωm. The thickness of the weathered layer varies across the tracks: Track 1 exhibits a thickness ranging from 4 to 12 meters, Track 2 ranges from 1 to 10 meters, Track 4 varies from 0 to 8 meters, and Track 5 shows a thickness between 0 and 10 meters.
Pembuatan dan Karakterisasi Scaffold Hidroksiapatit (HAp) dari Limbah Tulang Ikan Tenggiri (Scomberomorus commerson) Rohania, Meisa; Deswardani, Frastica; Fendriani, Yoza; Anjelina, Ria; Anggraini, Rista Mutia; Maulana, Lucky Zaehir; Pujaningsih, Febri Berthalita
Jurnal Riset Fisika Indonesia Vol 5 No 2 (2025): Juni
Publisher : Jurusan Fisika, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jrfi.v5i2.6410

Abstract

Defects in bone tissue represent a significant health concern and continue to pose challenges in clinical surgery. The fabrication of scaffolds from hydroxyapatite (HAp) can support bone regeneration. However, producing HAp scaffolds with ideal pore structures for effective bone tissue engineering remains difficult. In recent decades, many studies have attempted to enhance HAp scaffolds by incorporating polymeric materials to address their limitations. In this study, corn starch was used as a pore-forming agent, and polyvinyl alcohol (PVA) served as a binder and pore size regulator. The scaffolds were fabricated using the freeze-drying method, which offers the advantage of forming porous structures while maintaining scaffold integrity. This study investigated the effects of varying PVA additions which 3 wt%, 7 wt%, and 10 wt%. XRD analysis showed that the diffraction peaks of all samples corresponded to the HAp phase, displayed β-TCP peaks, and a crystal size with values ranging from 0.96 nm to 11.77 nm.  SEM analysis showed that the HAp-7 scaffold has the largest pore size distribution range of about 1.19 µm to 11.77 µm.
Identifikasi Akuifer Air Tanah menggunakan Metode Geolistrik di Perumahan Gang Jati Baru, Hajimena, Natar, Lampung Selatan Kumalasari, Isti Nur; RahmiMulyasari, Rahmi; Dewanto, Ordas; Mulyatno, Bagus Sapto; Wibowo, Rahmat Catur; Maulida, Nanda Hanyfa; Hidayatika, Akroma; Hesti, Hesti; Dani, Ilham; Erfani, Sandi
Jurnal Riset Fisika Indonesia Vol 5 No 2 (2025): Juni
Publisher : Jurusan Fisika, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jrfi.v5i2.6504

Abstract

Groundwater is a basic human need. However, the residents of Perumahan Gang Jati Baru, Hajimena, Natar face significant challenges in meeting their water demands, particularly during the dry season when water availability is critically reduced. To explore groundwater resources in Perumahan Gang Jatibaru, geoelectric measurements need to be conducted. The Schlumberger configuration is used for 1D measurements, while the Wenner-Schlumberger configuration is used for 2D data acquisition. The modeling results indicate the presence of shallow groundwater aquifers at depths ranging from 11.1 to 28.3 meters, and deeper aquifers at depths between 42.7 and 79 meters, characterized by low resistivity values of approximately 13.2 13.2 ohm.m. These findings are corroborated by the 2D resistivity modeling conducted at the study site, which reveals a shallow low-resistivity anomaly (<15.2 13.2 ohm.m) occurring at depths of 10 to 28 meters.     

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