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All Journal Mechatronics, Electrical Power, and Vehicular Technology Jurnal Bahan Alam Terbarukan Majalah Ilmiah MOMENTUM AJIE (Asian Journal of Innovation and Entrepreneurship) OPERATION EXCELLENCE: Journal of Applied Industrial Engineering Jurnal Rekayasa Mesin Mechanical Engineering for Society and Industry Journal of Environment and Sustainability Education jes Advance Sustainable Science, Engineering and Technology (ASSET)
Siregar, Januar Parlaungan
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Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Transportation Other

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Pengaruh Variasi Tekanan pada Produksi Komposit Friction Materials Kampas Rem terhadap Sifat Mekanik, Fisik dan Tribologi: indonesia Fauzi, Akhmad; Wibowo, Muhammad Errizky; Admoko, Mohammad Rizky Djati; Khafidh, Muhammad; Fitriyana, Deni Fajar; Siregar, Januar Parlaungan
Asian Journal of Innovation and Entrepreneurship Volume 10, Issue 1, January 2026
Publisher : UII

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/ajie.vol10.iss1.art7

Abstract

This study develops environmentally friendly brake pads from rice husk with phenolic resin as a binder material. This study aims to analyze the influence of compression pressure on the properties of mechanical, physical and tribological performance. In this study, brake friction material was made using the compression molding method with a composition of 40% phenolic resin, 20% rice husk, 15% , 15%  dan 10% hexamine. The compression pressures are varied, i.e. 5 MPa, 10 MPa and 15 MPa. Testing includes density, impact strength, tensile strength, flexural strength, wear and friction. The results showed that increasing the material compaction compression pressure from 5 MPa to 10 MPa can reduce the density, impact strength, tensile strength, flexural strength, and specific wear rate. Meanwhile, increasing the compaction compression pressure from 10 MPa to 15 MPa can improve properties of mechanical, physical and wear resistance. The final material result due to increased compaction compression pressure is influenced by particle size, matrix and filler distribution, porosity along resin cross-linking.
Trends and hotspots in environmental education research: Insights from a comparison of Indonesia and USA Prayogo, Wisnu; Putra, Riansyah; Atika, Liana; Trimailuzi, Trimailuzi; Fitria, Laili; Fatahillah, Al; Estim, Abentin; Sarwa, Sarwa; Darwin, Darwin; Zubir, Moondra; Awfa, Dion; Siregar, Januar Parlaungan; Anggamulia, Muh. Ilham; Azizah, Rifka Noor
Journal of Environment and Sustainability Education Vol. 4 No. 2 (2026)
Publisher : Education and Development Research

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62672/joease.v4i2.120

Abstract

Environmental education plays a critical role in shaping awareness, sustainable behavior, and civic responsibility. Despite the global growth of environmental education research, comparative analyses between countries with different socio-political and academic contexts remain limited. This study aims to examine the research landscape and thematic evolution of environmental education in Indonesia and the USA. A systematic bibliometric and thematic analysis was conducted on WoS publications from 1975–2025. The study integrates PRISMA-based systematic screening with bibliometric mapping using VOSviewer, enabling transparent article selection while revealing structural relationships among keywords, institutions, and research themes. A total of 812 articles were included after screening and eligibility assessment. The results reveal clear contrasts in research focus and collaboration structures. In the USA, dominant themes include pro-environmental behavior, science education, and urban green spaces, supported by dense institutional collaboration networks led by the University of Florida, Stanford, and Cornell. In contrast, Indonesian environmental education research emphasizes health, sanitation, education, and slum communities, with relatively limited inter-institutional collaboration. Keyword co-occurrence analysis indicates that while global clusters center on “environmental education” and “students,” Indonesian studies integrate context-specific topics such as “COVID-19,” “slums,” and “coastal communities.” This study contributes to environmental education knowledge mapping by providing a systematic cross-national bibliometric comparison that clarifies thematic priorities, collaboration patterns, and emerging research directions. The findings also support SDG-aligned research and policy development, particularly SDG 4.7 (education for sustainable development) and SDG 13 (climate action), by identifying opportunities to strengthen international collaboration and diversify thematic research agendas in environmental education.
Effect of Different Layers on the Performance of Laminate Epoxy Composite Reinforced with Textile Waste Thomas Junaedi; Siregar, Januar Parlaungan; Zalani, Mohamed Reza; Imran, Al Ichlas; Tezara Cionita; Endah Murtiana Sari; Deni Fajar Fitriyana; Etanto Heiliano Wijayanto
Advance Sustainable Science Engineering and Technology Vol. 8 No. 2 (2026): February-April
Publisher : Science and Technology Research Centre Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/asset.v8i2.2045

Abstract

Post-consumer textile waste poses significant environmental problems, but its potential for commercial recycling remains under-researched. Therefore, this study utilizes calico textile (CT) waste as reinforcement in polymer composites. The effect of layering number of CT in epoxy composite will be investigated. CT was varied with three layers, namely 1, 3, and 5 embedded in epoxy resin with the hand lay-up method in open molding. The mechanical testing of pure epoxy as a control point for tensile, flexural, and impact strengths of 13.68 MPa, 16.44 MPa, and 0.013 J/mm². In tensile strength, the increase occurred in CT1 and CT3 by 21% and 39.7%, A significant rise of 43.5% occurred in the CT5 flexural test, and impact strength saw a significant jump from CT1 to CT3 by 58%. Overall, observations of the composite laminar tensile fracture morphology indicate that the longitudinal loading effectively increases the tensile strength. However, void bubbles were found between the textile layers, but this condition does not contribute a significant reduces the mechanical performance. Further research is recommended using the synthetic fabric waste as a reinforcement composite.
Co-Authors Admoko, Mohammad Rizky Djati Agustinus Purna Irawan Ahmad Athoillah Akhmad Fauzi Aldias Bahatmaka Alrasyid, Mochamad Dzaki Anggamulia, Muh. Ilham ARHAMI Aripin, Muhammad Bustanul Atika, Liana Azizah, Rifka Noor Bachtiar, Dandi Bagastomo, Riondityo Soni Chusni Ansori Cionita, Tezara Darwin Darwin Dimyati, Saeful Dion Awfa Ekayuliana, Arifia Estim, Abentin Etanto Heiliano Wijayanto Fatahillah, Al Fitria, Laili Fitriyana, Deni Fajar Gunawan Refiadi, Gunawan Guteres, Natalino Fonseca Da Silva Guterres, Natalino Fonseca Da Silva Hadi, Agung Efriyo Iis Siti Aisyah Imran, Al Ichlas Iqbal, Mohd Ismoyo Haryanto Jamiluddin, Jamiluddin JOHNSON SIALLAGAN Joni Junaedi, Thomas Kalatharan, Sujentheran Nair Kano, Christina Paulina Kriswanto Kriswanto, Kriswanto Manalu, Janviter Marthen Liga Masri Mat Rejab, Mohd Ruzaimi Mat Rejab, Mohd. Ruzaimi Meiartha, REGA Mohd Ruzaimi Mat Rejab Muhammad Khafidh Muhibbuddin Muji Setiyo Pither Palamba Pramesti, Santinia Andiva Prasetyo, Ares Yudi Pratama, Hafiidz Satria Prayogo, Wisnu Puspitasari, Windy Desti Putra, Riansyah Ramdhan Halid Siregar Rifky Ismail Rosyidi, Edwar Rozanna Dewi Rusiyanto, R. Saifuddin Muhammad Jalil Samsudin Anis Sari, Endah Murtiana Sarwa, Sarwa Setiadi, Rizki Setiawan, Rohmat Silva, Mateus De Sousa Da Sudiyono, S. Sugihartanti, Noviani Putri Suhaeri Tezara Cionita Trimailuzi, Trimailuzi Uniplaita, Tiper Korneles Muwarberto Wibisono, Aprianto Wibowo, Muhammad Errizky Wijayanto, Etanto Heiliano Wisnu Prayogo Yabansabra, Yuliana Ruth Yuris Setyoadi Zalani, Mohamed Reza Zubir, Moondra Zulfadhli