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All Journal JOURNAL ONLINE OF PHYSICS Jurnal Penelitian Fisika dan Terapannya (JUPITER) Kemas Journal:Jurnal Pengabdian masyarakat
Lumban Toruan, Parmin
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Environmental Science Law, Crime, Criminology & Criminal Justice Physics Public Health Transportation

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Peningkatan kesadaran pentingnya pengarsipan dan penyimpanan dokumen secara online bagi Siswa SMAN 2 Sungai Are Muara Dua Oku Selatan Yanto Rahman, Dui; Lumban Toruan, Parmin; Rahmawati; Iswan, Joni; Atina; Sulistyowati, Rita
Kemas Journal : Jurnal Pengabdian Masyarakat Vol. 1 No. 1 (2023): Kemas Journal - Januari - Juni
Publisher : Universitas PGRI Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31851/kemas.v1i1.11490

Abstract

Rendahnya tingkat kesadaran tentang pentingnya penyimpanan dan pengarsipan data secara digital/online di kalangan siswa SMAN 2 Sungai Are Muara Dua telah mendorong diadakannya kegiatan sosialisasi mengenai administrasi penyimpanan data secara online. Kegiatan ini bertujuan untuk meningkatkan kesadaran peserta didik akan pentingnya melakukan pengarsipan dan penyimpanan data secara online. Metode yang digunakan adalah presentasi, praktek langsung dan diskusi interaktif. Hasil sosialisasi ini memperlihatkan bahwa para siswa sangat antusias dalam mempraktekkan penyimpanan data yang mereka miliki secara online. Angket yang disebarkan kepada para siswa memperlihatkan rata-rata para siswa termotivasi untuk melakukan penyimpanan secara online terhadap data-data yang mereka miliki di kemudian hari. Kegiatan sosialisasi ini diharapkan dapat membuat para siswa terbiasa menjadikan media online sebagai sistem penyimpanan data.
Functional Groups and Ionic Conductivity of Chitosan/LiOH/ZnO Membranes for Secondary Batteries Sari, Kartika; Setiabudi , Angga; Halifah , Rofikoh; Lumban Toruan, Parmin
Jurnal Penelitian Fisika dan Terapannya (JUPITER) Vol. 7 No. 1 (2025): Jurnal Penelitian Fisika dan Terapannya (JUPITER)
Publisher : Universitas PGRI Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31851/jupiter.v7i1.19766

Abstract

The development of solid-state electrolytes with high ionic conductivity and structural stability is crucial for advancing secondary battery technologies. Solid electrolytes play a critical role in facilitating ion transfer between electrodes, directly impacting battery efficiency. Solid electrolyte polymer membranes can be manufactured for use in secondary batteries as electrical energy storage devices. In batteries, solid electrolytes act as a medium for ion transfer. The polymer membrane was modified by incorporating Zinc Oxide (ZnO) into the chitosan/LiOH polymer membrane using the solution casting method. Fourier Transform Infrared (FTIR) and Electrochemical Impedance Spectroscopy (EIS) tests were conducted. The FTIR analysis of the polymer membrane revealed the presence of functional groups such as OH stretching, -NH stretching, -NH bending, -CO stretching, -CH stretching, and -ZnO stretching. The EIS results demonstrated that the ionic conductivity of the 3% chitosan/LiOH/ZnO membrane was higher at 1.4821 x 10-6 S/cm compared to the 2% chitosan/LiOH/ZnO membrane at 3.6893 x 10-7 S/cm. This study suggests that chitosan/LiOH membranes doped with Zinc Oxide (ZnO) are a promising option for solid electrolyte membranes in secondary batteries
ANALISIS UJI TARIK KOMPOSIT SERAT BATANG KELAKAI DENGAN VARIASI KATALIS UNTUK PEMBUATAN MATERIAL BUMPER MOBIL Rusly, Muhammad; Sulistyowati, Rita; Lumban Toruan, Parmin
JOURNAL ONLINE OF PHYSICS Vol. 9 No. 1 (2023): JOP (Journal Online of Physics) Vol 9 No 1
Publisher : Prodi Fisika FST UNJA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jop.v9i1.27670

Abstract

A research was conducted to create car bumper materials using natural kelakai plant fibers combined with a catalyst and resin as a binding agent in the composite. The main goal of the study was to examine the tensile strength of the kelakai fiber composite with different catalyst variations and assess the impact of these catalyst changes on the bumper material's tensile strength. The composite materials were prepared in three test specimens with catalyst compositions of 2,5%, 5%, and 7,5%, respectively, based on a 20 mL resin composition. These samples underwent tensile testing using a Universal Testing Machine (UTM). The results revealed that the tensile strength of the kelakai fiber composite increased with higher catalyst percentages. At 2,5%, 5%, and 7,5% catalyst compositions, the tensile strengths were measured as 0,37 N/mm2, 0,41 N/mm2, and 0,47 N/mm2, respectively. Additionally, the elongation values for the catalyst portion are 1,11%, 2,22%, and 3,89% and the Young's modulus values are 0,33 N/mm2, 0,18 N/mm2, and 0,12 N/mm2, respectively. The study demonstrates the significant influence of catalyst variations on the tensile strength of the kelakai fiber composite.
Co-Authors Atina Halifah , Rofikoh Joni Iswan Kartika Sari Rahmawati Rusly, Muhammad Setiabudi , Angga Sulistyowati, Rita Yanto Rahman, Dui