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All Journal Seminar Nasional Aplikasi Teknologi Informasi (SNATI) Jurnal Ekonomi dan Kewirausahaan Jurnal Online Mahasiswa (JOM) Bidang Ilmu Sosial dan Ilmu Politik Agora J I M P - Jurnal Informatika Merdeka Pasuruan Informatika Wicida Tsaqofah: Jurnal Penelitian Guru Indonesia MASALIQ: Jurnal Pendidikan dan Sains IJIMCE : International Journal of Innovation in Mechanical Construction and Energy Mars: Jurnal Teknik Mesin, Industri, Elektro dan Ilmu Komputer Consensus : Jurnal Ilmu Hukum Ascendia: Journal of Economic and Business Advancement
Andre Kurniawan
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Religion Arts Humanities Automotive Engineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Energy Engineering Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Social Sciences

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Analisis Karakteristik Briket Campuran Arang Cangkang Kelapa Sawit dan Tempurung Kelapa sebagai Bahan Bakar Alternatif Benny Putra Ramadhan; Hendri Nurdin; Andre Kurniawan; Sri Rizki Putri Primandari
MASALIQ Vol 6 No 2 (2026): MARET
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v6i2.9130

Abstract

The utilization of biomass as an alternative fuel is becoming increasingly important amid growing dependence on fossil energy and the abundance of plantation waste in Indonesia. Although briquettes made from palm kernel shells and coconut shells have been widely studied, research that specifically examines the effects of variations in material composition and carbonization temperature using tapioca as a binder remains limited. This study aims to analyze the characteristics of mixed briquettes made from palm kernel shell charcoal and coconut shell charcoal and to determine the optimum composition as an alternative fuel. A quantitative approach was employed with a laboratory experimental design involving variations in material composition (85%:15% and 80%:20%) and carbonization temperature (550 °C and 600 °C). Data were obtained from tests of moisture content, ash content, and calorific value using a bomb calorimeter and were analyzed descriptively and quantitatively. The results show that briquettes with a composition of 80%:20% yielded the best characteristics, with the lowest moisture content of 25%, ash content of 10.01%, and the highest calorific value of 29.994 kJ/kg. These findings confirm that optimizing material composition and carbonization conditions plays a crucial role in producing biomass briquettes that are suitable for use as alternative fuel, thereby contributing to the development of biomass waste utilization as renewable energy with potential applications at the household and small-scale industrial levels.
Hubungan Persepsi Keselamatan dan Kesehatan Kerja (K3) dan Sikap Siswa dalam Praktek terhadap Hasil Belajar Mata Pelajaran Teknik Pengelasan Kelas XI di SMK Negeri 1 Bangkinang Nazrian Arham; Andre Kurniawan; Syahril; Irzal
TSAQOFAH Vol 6 No 5 (2026): TSAQOFAH: Jurnal Penelitian Guru Indonesia
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/tsaqofah.v6i5.11615

Abstract

Although the implementation of occupational safety and health (OSH) in vocational education has been widely studied, evidence regarding the simultaneous relationship of OSH perceptions and students’ attitudes during practical activities with welding learning outcomes remains limited. This study aimed to analyze the relationships of OSH perceptions and students’ attitudes during practical activities with the Welding Engineering learning outcomes of Grade XI students at SMK Negeri 1 Bangkinang. The study employed a quantitative approach with a correlational design. A total of 60 students were included as the sample using total sampling. Data were collected using questionnaires on OSH perceptions and students’ attitudes, as well as documentation of practical assessment scores, and were then analyzed using Pearson correlation and multiple linear regression. The results showed that OSH perceptions were positively and significantly correlated with learning outcomes (r = 0.272; p = 0.036). Students’ attitudes during practical activities were also positively and significantly correlated with learning outcomes (r = 0.284; p = 0.028). Simultaneously, OSH perceptions and students’ attitudes were significantly related to learning outcomes (R = 0.357; R² = 0.127; p = 0.021), with a contribution of 12.7%. These findings confirm that practical learning outcomes in vocational education are related not only to technical skills but also to students’ safety awareness and work attitudes. This study provides practical implications for schools to strengthen the OSH culture, improve supervision during practical learning, and ensure the availability of personal protective equipment. Future studies need to involve larger samples and consider other supporting variables.
Co-Authors Ade Kurniawati Arriyanti, Eka Arwizet Arwizet, Arwizet Benny Putra Ramadhan Dhio Dhani Sineba Hapnes Toba Hendri Nurdin Ifransyah Okta Irawan Irzal Jhovimay Deviqih Jumadil Ashari Junil Adri M. Afrendi Nazrian Arham Rahmat Afdhol Remon Lapisa Rozeino Saputra Ruzikna " Siti Lailiyah Soretire Lanrewaju Kamorudeen Sri Rizki Putri Primandari Sugeng Prayetno Syahril Wanda Afnison Yudhi Praneto Yusuf Wahyu Setiya Putra