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All Journal Jurnal Fisika Unand SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Inovasi Fisika Indonesia (IFI) Faraday: Journal of Fundamental Physics, Research, and Applied Science
Primasari Cahya Wardhani
Departemen Fisika, Universitas Pembangunan Nasional "Veteran" Jawa Timur
Agriculture, Biological Sciences & Forestry Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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Kajian Biofisika FRRS Untuk Mengurangi Nyeri Kelelahan Pada Kaki Dengan Stimulasi Listrik dan Magnet Primasari Cahya Wardhani; Nia Dwi Puspitasari; Zakiyah Dania Billah; Tri Anggono Prijo; Bagas Aryaseta; Sakinah Sakinah; Widya Rachma Wulan; Syahrul Munir
Jurnal Fisika Unand Vol 13 No 6 (2024)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jfu.13.6.762-770.2024

Abstract

This research aims to design and test the effectiveness of the Foot Reflection-Relaxation Stimulator (FRRS), which combines electrical and magnetic stimulation as a reflexology therapy method to reduce pain caused by fatigue. FRRS is designed to stimulate reflex points in the feet by applying principles of physics such as static magnetic fields and Lorentz force, which are expected to enhance blood circulation and relax tense muscles. The testing was conducted on 25 healthy male participants who experienced leg fatigue after traveling a distance of 20 km. Pain levels were measured using the Numerical Rating Scale (NRS) before and after treatment with FRRS. The results showed a significant decrease in pain scale, from an average of 7 before treatment to 3.12 after treatment. The use of FRRS has proven effective in reducing pain due to fatigue in the legs, which is believed to be due to increased blood circulation and muscle relaxation. Thus, FRRS can be a practical and efficient solution to improve the quality of life for individuals who often experience fatigue and pain in their legs.
PEMODELAN KOMPUTASIONAL SIFAT MEKANIK THIN FILM BERBASIS PEKTIN KULIT DURIAN Rizkiarna, Reffany Choiru; Timur, Fajar; Sujiwa, Akbar; Wardhani, Primasari Cahya
Inovasi Fisika Indonesia Vol. 14 No. 2 (2025): Vol 14 No 2
Publisher : Prodi Fisika FMIPA Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ifi.v14n2.p209-215

Abstract

Abstrak Pektin yang diekstrak dari kulit durian merupakan salah satu bentuk pemanfaatan limbah biomassa berpotensi tinggi sebagai material ramah lingkungan, khususnya untuk aplikasi kemasan pangan biodegradable. Pada penelitian ini dilakukan simulasi numerik berbasis COMSOL Multiphysics untuk menganalisis perilaku mekanik film tipis pektin kulit durian di bawah berbagai kondisi pembebanan. Studi dilakukan dengan membangun model tiga dimensi (3D) film tipis, kemudian pemetaan tegangan von Mises, analisis distribusi tegangan, serta evaluasi nilai tegangan maksimum (peak stress), minimum, dan rata-rata. Hasil simulasi menunjukkan distribusi tegangan tidak merata di seluruh volume film, melainkan terkonsentrasi pada tepi dan sudut akibat efek geometri. Nilai peak stress berfluktuasi terhadap waktu dan cenderung meningkat pada siklus pembebanan tertentu, yang berimplikasi pada potensi inisiasi retakan di area kritis. Meskipun demikian, sebagian besar area film masih berada dalam kondisi elastis, sehingga deformasi bersifat reversibel. Analisis ini menegaskan bahwa ketahanan jangka panjang film tipis pektin dipengaruhi oleh kombinasi sifat intrinsik material, kondisi batas, serta variasi pembebanan. Temuan ini memberikan dasar penting bagi pengembangan material kemasan berbasis pektin kulit durian yang lebih andal melalui modifikasi struktur maupun penambahan aditif penguat.   Abstract Pectin extracted from durian rind represents a promising valorization of biomass waste with potential applications as an eco-friendly material, particularly for biodegradable food packaging. In this study, a COMSOL Multiphysics-based numerical simulation was conducted to investigate the mechanical behavior of durian rind pectin thin films under various loading conditions. A three-dimensional (3D) thin-film model was developed, followed by von Mises stress mapping, stress distribution analysis, and evaluation of maximum (peak stress), minimum, and average stress values. The results revealed that stress distribution was not uniform across the film volume but concentrated along the edges and corners due to geometric effects. Peak stress exhibited temporal fluctuations and tended to increase during specific loading cycles, indicating a high probability of crack initiation in critical regions. Nevertheless, the majority of the film remained within the elastic regime, allowing reversible deformation. This analysis highlights that the long-term reliability of durian pectin thin films is strongly governed by the interplay of intrinsic material properties, boundary conditions, and loading variations. The findings provide a scientific basis for further optimization of durian rind pectin films through structural modification or reinforcement additives to enhance their performance as sustainable packaging materials.
The Impact of Plate Length and Material Variations on Tibial Bone Implants Analysis using Computational Biomechanics Sakinah, Sakinah; Wardhani, Primasari Cahya; Rizkiarna, Reffany Choiru; Aminallah, Deliana Nurfauziyyah; Aruan, Nenni Mona; Billah, Zakiyah Dania
Faraday: Journal of Fundamental Physics, Research, and Applied Science Vol. 1 No. 1 (2025): Faraday: Journal of Fundamental Physics, Research, and Applied Science
Publisher : Universitas Pembangunan Nasional "Veteran" Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/faraday.v1i1.2

Abstract

The aim of this research is to simulate the strength of the implant plate, as a method for healing tibia fractures by combining bone with a bone plate. Then model and analyze using ANSYS software to analyze loads such as deformation and the maximum distribution of von Mises stress values. The results of the Maximum Principal Stress analysis on the cobalt-chromium implant plate show a minimum value of -1.2527107 Pa (-12.527 MPa) and a maximum value of 7.57610 7Pa (75.76 MPa). Based on the research results, Co-Cr material has significant advantages compared to steel as an implant material. In addition, this material has excellent corrosion resistance and very good biocompatibility, making it safe for long-term use in the human body without significant risk of allergic reactions or irritation.
Evaluasi Hubungan Deviasi dan Energi terhadap Kestabilan Keluaran Berkas Elektron pada Pesawat LINAC Varian TrueBeam Sakinah; Wardhani, Primasari Cahya; Arie Chintya Martania; Nur Aini Fauziyah; Wahyu Dwi Lestari
Jurnal Fisika Unand Vol 15 No 1 (2026)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jfu.15.1.1-8.2026

Abstract

This study aims to analyze the relationship between electron beam energy and electric charge, as well as the relationship between deviation and energy, to evaluate the output stability of the LINAC machine. Measurements were conducted at BPAFK Surabaya using a Varian TrueBeam LINAC at Hospital X, East Java. The study employed electron energies of 6 MeV, 9 MeV, 12 MeV, 16 MeV, and 18 MeV. The procedure included filling the water phantom with distilled water, setting the source-to-surface distance (SSD) to 100 cm with a radiation field size of 10 cm × 10 cm, and connecting the detector to the electrometer outside the LINAC room. Calibration was performed at the reference depth (Zref) based on the R₅₀ value from the Percentage Depth Dose (PDD) table according to the IAEA TRS-398 standard. Measurements were repeated five times with voltage variations of +300 V, −300 V, and +75 V. The results showed that the maximum electric charge occurred at 12 MeV at a depth of 2.96 cm, while the highest deviation, −0.15%, was observed at 16 MeV—still within the ±2% tolerance limit. Therefore, the LINAC machine is considered stable and suitable for use in radiotherapy.
Peningkatan SDGs melalui penyediaan air bersih dengan filterisasi skala rumah tangga tingkatkan kesadaran pentingnya kesehatan di Panti Asuhan Al-Bisri Primasari Cahya Wardhani; Siti Zainab; Aulia Dewi Fatikasari; Zakiyah Dania Billah; Sakinah Sakinah; Hamizatul Hadiantati; Widya Rachma Wulan
SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Vol 9, No 2 (2025): March
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jpmb.v9i2.28915

Abstract

Abstrak Akses air bersih sangat penting untuk kesehatan dan kualitas hidup, terutama bagi populasi yang berisiko seperti anak-anak di panti asuhan. Panti Asuhan Al-Bisri menghadapi akses terbatas terhadap air bersih, yang dapat menyebabkan masalah kesehatan seperti diare, kolera, dan kondisi dermatologis lainnya. Untuk memfasilitasi pencapaian SDGs-6 mengenai tercukupinya air bersih dan sanitasi, tim penyuluh melaksanakan pengabdian masyarakat dengan memasang filter air di panti asuhan. Tujuan dari kegiatan ini adalah untuk meningkatkan pemahaman akan pentingnya air bersih serta mengurangi bahaya penyakit yang ditularkan melalui air dengan menggunakan teknologi filtrasi air yang sesuai. Studi ini bertujuan untuk mengevaluasi efektivitas penyuluhan dengan menggunakan metodologi pre-test dan post-test melalui kuesioner yang mengukur pengetahuan para penghuni panti asuhan. Metodologi penelitian yang digunakan mencakup penyuluhan, pemasangan filter air, pelatihan pemasangan filter air, dan monitoring serta evaluasi. Kuesioner diberikan untuk menilai pengetahuan dasar mengenai pentingnya air bersih dan filtrasi air sebelum dan setelah penyuluhan. Hasil kegiatan menunjukkan peningkatan signifikan mencapai 75% dalam pemahaman para pengelola panti asuhan mengenai air bersih setelah penyuluhan dilakukan, serta perbaikan dalam penggunaan air bersih bagi penghuni panti asuhan, diantaranya mengetahui pentingnya hemat air, membiasakan mencuci tangan, dan kebiasaan hidup sehat lainnya dengan memanfaatkan air bersih secara efektif setelah pemasangan filter. Penelitian ini menyimpulkan bahwa penyuluhan dan teknologi filtrasi air secara efektif meningkatkan kesadaran dan kesehatan di Panti Asuhan Al-Bisri, dengan potensi untuk digunakan di komunitas lain yang menghadapi kesulitan serupa. Kata kunci: filterisasi; air bersih; tingkatkan kesehatan; SDGs 6; sanitasi dan air bersih; panti asuhan. Abstract Access to clean water is very important for health and quality of life, especially for at-risk populations such as children in orphanages. Al-Bisri Orphanage faces limited access to clean water, which can lead to health issues such as diarrhea, cholera, and other dermatological conditions. To facilitate the achievement of SDG-6 regarding access to clean water and sanitation, the outreach team conducted community service by installing water filters at the orphanage. The purpose of this activity is to increase understanding of the importance of clean water and to reduce the risk of waterborne diseases by using appropriate water filtration technology. This study aims to evaluate the effectiveness of outreach using a pre-test and post-test methodology through questionnaires that measure the knowledge of orphanage residents. The research methodology used includes outreach, installation of water filters, training on water filter installation, and monitoring and evaluation. The questionnaire was given to assess the basic knowledge regarding the importance of clean water and water filtration before and after the counseling. The results of the activities showed a significant increase of 75% in the understanding of clean water among the orphanage managers after the counseling was conducted, as well as improvements in the use of clean water for the orphanage residents, including understanding the importance of water conservation, getting into the habit of washing hands, and other healthy living habits by effectively utilizing clean water after the installation of the filter. This study concludes that counseling and water filtration technology effectively improve awareness and health at Al-Bisri Orphanage, with the potential to be used in other communities facing similar challenges. Keywords: filtration; clean water; improve health; SDGs 6; sanitation and clean water; orphanage
Co-Authors Akbar Sujiwa Aminallah, Deliana Nurfauziyyah Arie Chintya Martania Aruan, Nenni Mona Bagas Aryaseta Billah, Zakiyah Dania Fajar Timur Fatikasari, Aulia Dewi Hamizatul Hadiantati Nia Dwi Puspitasari Nur Aini Fauziyah Reffany Choiru Rizkiarna Sakinah Sakinah Sakinah Sakinah Sakinah Sakinah Sakinah Siti Zainab Syahrul Munir Tri Anggono Prijo Wahyu Dwi Lestari Widya Rachma Wulan Widya Rachma Wulan Zakiyah Dania Billah Zakiyah Dania Billah