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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): MASALIQ: Jurnal Pendidikan dan Sains
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.
Efektivitas Media Pembelajaran E-Modul pada Mata Pelajaran Teknik Pemesinan Bubut di SMKS Dhuafa Padang Fatriyanto Fatriyanto; Waskito Waskito; Syahril Syahril; Andre Kurniawan
YASIN Vol 4 No 6 (2024): YASIN: Jurnal Pendidikan dan Sosial Budaya
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/yasin.v4i6.4023

Abstract

This study aims to examine the effectiveness of the use of e-module learning media on student learning outcomes in the subject of Lathe Machining Engineering class XI at SMKS Dhuafa Padang. The background of this research is the limited teaching materials and short learning time, which requires students to learn independently. The research method used is quasi-experimental with pretest-posttest control group design. The research sample consisted of 35 students of class XI Machining Engineering who were divided into experimental and control groups. Data were collected through learning outcome tests and analyzed using independent t-test. The results showed that: (1) the average pretest score of the experimental group was 54.77 and the control group was 61.67; (2) the average posttest score of the experimental group was 81.47 and the control group was 71.67; (3) there was a significant difference between the learning outcomes of the experimental and control groups (t = 0.549, p < 0.05). In conclusion, the use of e-modules is effective in improving student learning outcomes in Lathe Machining Engineering subjects. This study recommends the use of e-modules as an alternative learning media to improve student independence and learning outcomes.
Hubungan Hasil Belajar Produk Kreatifitas dan Kewirausahaan (PKK) dengan Minat Berwirausaha Siswa Teknik Pemesinan SMS Dhuafa Padang Ridho Kurniawan; Yufrizal Yufrizal; Andre Kurniawan; Rizky Ema Wulansari
ALSYS Vol 4 No 5 (2024): ALSYS: Jurnal Keislaman dan Ilmu Pendidikan
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/alsys.v4i5.3645

Abstract

SMKS Dhuafa Padang equips students with entrepreneurial knowledge and skills through the subject of Creativity Products and Entrepreneurship (PKK) However, students' interest in entrepreneurship is still low. This study examines the factors behind it, such as the increasingly narrow job opportunities, Entrepreneurship can create jobs, PKK has an influence on the entrepreneurial spirit, Entrepreneurship learning has an important role in increasing students' entrepreneurial interest. This study uses a quantitative correlational type to determine the relationship between PKK and Entrepreneurial Interest. Data collected in the form of numbers and analyzed using statistics. The research method used is associative quantitative, which aims to determine the influence and relationship between PKK and Entrepreneurial Interest. The study found that PKK has a relationship with students' interest in entrepreneurship at SMKS Dhuafa Padang. This is evidenced through the T test and F test, where the value of Sig. 0.05 and the value of tcount ttable (in the T test) and the value of fcount ftable (in the F test) indicate a relationship. In conclusion, PKK proved to play an important role in increasing students' interest in entrepreneurship, with 29.2% influenced by PKK and the rest by other factors.