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All Journal EKSAKTA: Journal of Sciences and Data Analysis POSITRON Biosfer: Jurnal Tadris Biologi Techno: Jurnal Penelitian Edu Sains: Jurnal Pendidikan Sains dan Matematika IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Al Ishlah Jurnal Pendidikan Jurnal Penelitian Sains Jurnal Redoks JURNAL PENDIDIKAN TAMBUSAI Aptisi Transactions on Technopreneurship (ATT) Jurnal Penelitian dan Pengkajian Ilmu Pendidikan: e-Saintika Kinetika Suluah Bendang: Jurnal Ilmiah Pengabdian Kepada Masyarakat Pillar of Physics Education : Jurnal Berkala Ilmiah Pendidikan Fisika AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Jurnal Teknologi International Journal of Research in Vocational Studies (IJRVOCAS) Aptekmas : Jurnal Pengabdian Kepada Masyarakat Chemical Engineering Journal Storage (CEJS) Proceeding ISETH (International Summit on Science, Technology, and Humanity) Internet of Things and Artificial Intelligence Journal Innovative: Journal Of Social Science Research Bioedunis Journal International Journal of Mechanics, Energy Engineering and Applied Science (IJMEAS) Applied Engineering, Innovation, and Technology Journal of Experimental and Applied Physics Journal of The Physical Society of Indonesia
Yohandri Bow
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Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Neuroscience Nursing Physics Public Health Social Sciences Transportation Veterinary Other

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A Systematic Literature Review on the Use of Digital Books in Science Learning in the Society 5.0 Era Zikra, Zikra; Safitri, Elza; Yerimadesi, Yerimadesi; Yohandri, Yohandri; Fadilah, Muhyiatul
Biosfer: Jurnal Tadris Biologi Vol 17 No 1 (2026): Biosfer: Jurnal Tadris Biologi
Publisher : UNIVERSITAS ISLAM NEGERI RADEN INTAN LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/biosfer.v17i1.31113

Abstract

This study examines the use of digital books in science learning within the context of Society 5.0 through a Systematic Literature Review (SLR). The review followed the PRISMA 2020 guidelines and analyzed 27 articles indexed in Scopus published between 2021 and 2025. The findings indicate that digital books contribute positively to students’ learning outcomes, critical thinking skills, motivation, and digital literacy. Interactive features such as multimedia integration, augmented reality, and AI-based feedback support more adaptive and contextual science learning. The review also identified four major research themes: digital book design and development, impact on learning outcomes, integration with Society 5.0 principles, and implementation challenges. Despite their benefits, several barriers remain, including limited digital infrastructure, unequal access to technology, and low teacher readiness in digital pedagogy. Overall, digital books have strong potential to support innovative and student-centered science learning aligned with the demands of Society 5.0. Sistematik Literatur Review Penggunaan Buku Digital dalam Pembelajaran Sains pada Era Society 5.0 ABSTRAK: Penelitian ini mengkaji penggunaan buku digital dalam pembelajaran sains pada konteks Society 5.0 melalui Systematic Literature Review (SLR). Kajian dilakukan mengikuti pedoman PRISMA 2020 dengan menganalisis 27 artikel terindeks Scopus yang diterbitkan pada tahun 2021–2025. Hasil penelitian menunjukkan bahwa buku digital memberikan kontribusi positif terhadap hasil belajar, kemampuan berpikir kritis, motivasi belajar, dan literasi digital siswa. Fitur interaktif seperti integrasi multimedia, augmented reality, dan umpan balik berbasis AI mendukung pembelajaran sains yang lebih adaptif dan kontekstual. Kajian ini juga mengidentifikasi empat tema utama penelitian, yaitu desain dan pengembangan buku digital, dampak terhadap hasil belajar, integrasi prinsip Society 5.0, serta tantangan implementasi. Meskipun memiliki banyak manfaat, penerapan buku digital masih menghadapi hambatan berupa keterbatasan infrastruktur digital, ketimpangan akses teknologi, dan rendahnya kesiapan guru dalam pedagogi digital. Secara keseluruhan, buku digital berpotensi mendukung pembelajaran sains yang inovatif dan berpusat pada siswa sesuai tuntutan Society 5.0.
SINTESIS BIOPELUMAS DARI MINYAK JELANTAH MENGGUNAKAN KATALIS ASAM FOSFAT Nabila Cindi Lestari; Yohandri Bow; Apri Mujiyanti
Chemical Engineering Journal Storage (CEJS) Vol. 6 No. 4 (2026): Chemical Engineering Journal Storage (CEJS)- August 2026
Publisher : LPPM Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/cejs.v6i4.28546

Abstract

Minyak jelantah berpotensi dimanfaatkan sebagai bahan baku biopelumas yang ramah lingkungan dan dapat diperbarui. Penelitian ini bertujuan untuk menganalisis pengaruh konsentrasi katalis asam fosfat dan waktu reaksi terhadap karakteristik biopelumas, menentukan kondisi operasi terbaik, serta mengidentifikasi gugus fungsi produk menggunakan FTIR. Sintesis biopelumas dilakukan melalui proses esterifikasi dan transesterifikasi dengan variasi konsentrasi katalis asam fosfat 1–5% dan waktu reaksi 130–150 menit pada suhu 120°C. Karakteristik yang dianalisis meliputi rendemen, densitas, viskositas, titik nyala, dan titik tuang. Hasil penelitian menunjukkan bahwa peningkatan konsentrasi katalis dan waktu reaksi cenderung meningkatkan rendemen dan titik nyala. Kondisi operasi terbaik diperoleh pada konsentrasi katalis 2% dan waktu reaksi 140 menit dengan densitas 0,9560 g/mL, viskositas 13,09 cSt, titik nyala 377°C, titik tuang 1°C, dan rendemen 81%.
Ultrasonic-Assisted Alkaline Pretreatment for Enhanced Bioethanol Production from Water Hyacinth (Eichhornia crassipes) Biomass Alya Fazza; Rizky Dwi Ramadhon; Sahrul Effendy; Yohandri Bow; Zurohaina
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 6 No. 2 (2026): IJRVOCAS - August
Publisher : Yayasan Ghalih Pelopor Pendidikan (Ghalih Foundation)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/ijrvocas.v6i2.529

Abstract

Water hyacinth (Eichhornia crassipes) is an abundant lignocellulosic biomass with strong potential as a feedstock for bioethanol production, but its relatively high lignin content limits the accessibility of cellulose and inhibits the subsequent hydrolysis process. This study aims to analyze the effect of ultrasonic-assisted pretreatment duration and NaOH concentration on the lignocellulosic composition and the resulting bioethanol yield from water hyacinth biomass. Pretreatment was carried out at 60°C and 60 W power with time variations of 10, 15, 20, 25, and 30 minutes and NaOH concentrations of 1 M and 2 M. The pretreated samples were analyzed for lignin, cellulose, and hemicellulose content using the Chesson method, then hydrolyzed with 3% H2SO4, fermented for 120 hours using Saccharomyces cerevisiae, distilled, and characterized. The results showed that the optimum pretreatment condition was obtained at a treatment time of 25 minutes with 2 M NaOH, which reduced the lignin content from 12.1% to 5.4%, reduced the hemicellulose content to 10.8%, increased the cellulose content from 56.0% to 75.1%, and produced the highest glucose content of 8.2%. Under these optimum conditions, the resulting bioethanol had an ethanol content of 14%, a density of 0.980 g/mL, a pH of 6.5, and a distillate volume of 42 mL. Gas chromatography-mass spectrometry analysis further confirmed ethanol as the dominant compound in the distillate, supporting the validity of the refractometric measurement. Beyond 25 minutes of pretreatment, however, the lignin content, cellulose content, and bioethanol yield all showed a slight decline, indicating that excessively prolonged ultrasonic exposure can degrade part of the biomass structure and reduce process efficiency. Overall, these results indicate that ultrasonic pretreatment combined with 2 M NaOH effectively enhances delignification and improves the potential for bioethanol production from water hyacinth biomass, although further optimization is still required to achieve a fuel-grade ethanol content.
Hybrid PV–VAWT Automatic Fish Feeding System for Sustainable Aquaculture Aulia, M Habib; Dewi, Tresna; Bow, Yohandri
Jurnal Penelitian dan Pengkajian Ilmu Pendidikan: e-Saintika Vol. 10 No. 2 (2026): July
Publisher : Lembaga Penelitian dan Pemberdayaan Masyarakat (LITPAM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/e-saintika.v10i2.5769

Abstract

This study developed and experimentally evaluated an automatic fish feeding system powered by a hybrid photovoltaic (PV)–Vertical Axis Wind Turbine (VAWT) energy architecture for small-scale aquaculture applications. The prototype integrated PV generation, a VAWT, battery storage, charge control, a DC–AC inverter, a programmable timer, and an auger-based feeding mechanism. An engineering Design and Development approach was applied through prototype design, assembly, laboratory testing, and field evaluation. VAWT performance was evaluated under controlled laboratory conditions and at two field environments, Lubuk Bakung and Tanjung Api-Api Port, while PV performance was assessed with and without the feeder load. The two automatic feeder units required a combined electrical power of 52 W. The PV subsystem produced a maximum of 76.85 W without feeder load and 60.80 W under feeder load, providing an 8.80-W (16.9%) instantaneous margin above feeder demand at peak output. VAWT maximum power reached 17.304 W in the laboratory, 17.93 W at Tanjung Api-Api, and 0.689 W at Lubuk Bakung, demonstrating substantial site-dependent variation in wind-energy contribution. Battery input voltage remained within 12.4–12.6 V during the Lubuk Bakung observations, while the inverter supplied 208–218 V AC under the tested light-load condition. The feeding mechanism completed the observed programmed cycles without mechanical interruption or pellet blockage. Overall, the findings demonstrate the technical feasibility of a PV-dominant, VAWT-supplemented, battery-buffered architecture for autonomous automatic fish feeding under the tested conditions.
Co-Authors ,, Tahdid -, Zurohaina ., Zurohaina Abda Abda Abdul Razak Abdul Wahid Abu Hasan Abu Hasan Afrianda, Teguh Ahmad Taqwa Aida Syarif AIDA SYARIF Al-Insyrah, Eyza Recwika Ali Ahmad Alwi Nofriandi Alya Fazza Anisa, Widya Anwar, Suci Apri Mujiyanti Apriani, Akmecia Risqa Arif Budiman Arissetyadhi, Iwan Arizal Aswan Asrizal Audia, Washilla Aulia Asman Aulia, M Habib Ayu Permata Sari Bachty, Hadri Baharuddin Baharuddin BAKHRANI RAUF Bayu Saputra Budiman, Ria Candra Aprizal Daniar, Rima Darozat, Fajar Mukharom Diah Iswandari Diah Rahmawati Effendy, Sahrul Elza Safitri Erlinawati . Fadhila Ulfa Jhora Fadhlurrahman, M Revanza Fatahul Arifin Fatahul Arifin, Fatahul Fatria Fatria Fatria Febriana, Ida Festiyed Fitri Arsih Gabe, Totop Gunaria Siagian Harjadi Gunawan Harliyani, Ayu Dwi Heru Afriansyah I Nyoman Sila Ibnu Hajar Ichsan Astanto Idham Mahenri Ifdil Ifdil Illahi, Kurnia Indah Purnamasari Isdaryanto Iskandar Jaya Utama Putra Juanta, Palma Kalsum, Leila Kholidah , Nurul Leila Kalsum Leila Kalsum Lety, Trisnaliani Lufri Lufri M. Amir M. Reza Ramlan M. Syahirman Yusi Mahardhika, Lintang Putri Mairizwan, Mairizwan Manggala, Agus Manurung, Nicolas Marambang, Alfi Yory Maryam Seyaski Fitria Melta, Defrian Minda Azhar Miranda Roulina Miranda Roulina T Monica, Levia Moyo, Kgomotso Muhammad Agung Muhammad Reza Ramlan Muhammad Taufik Muhammad Yerizam Muhammad Zulfahmi Muhyiatul Fadilah Mustofa Mustofa Nabila Cindi Lestari Najwa, Cholida Nedia Sandika Nofi Yendri Sudiar Novarini, N Pakhrur Razi Prakoso, Dibyo Putra, Andhika Satria Putra, Asri Eka Putra, M. Rizky Adhitya Rahmadina, Nisa Raihansyah, Ahmad RD Kusumanto Reza Angraini Rhevy Liandari Rifa'i, Ahmad Imam Riri Jonuarti Rizky Dwi Ramadhon Robby Setiadi Robert Junaidi Robiansyah RR. Ella Evrita Hestiandari Rusdianasari Rusdianasari Rusdianasari Rusdianasari Sahrul Effendy Salamah, Luthfia Samosir, Devina Sanchia sari, Desi Nurmala Sari, Mona Sari, Mona Berlian Septiana, Iriani Reka Shela Dilen Putri Sigit Kurniawan Sirajuddin Skunda Diliarosta Suaidi Ahadi Sundari, Okta Sutini Pujiastuti Lestari Sutini Pujiastuti Lestari Suyanta Suyanta Syakdani, Adi Tahdid . Thamrin Thamrin Tresna Dewi Wibby Aditya Putra Utama Widiartha, Wahyu Dewa Wiranata, Muhammad Adithia WULANDARI, NILA Yenni Darvina Yerimadesi Yulifarma, Rika Yulkifli Yulkifli Yusi, Syahirman Zakiyah Sri Rezeki Zikra Zikra Zikri, Ahmad Zikri, Ahmad Zulhendri Kamus Zulma, Degito Zurohaina