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All Journal Jurnal Pendidikan Teknologi dan Kejuruan SPEKTRUM: Jurnal Pendidikan Luar Sekolah (PLS) JURNAL PENDIDIKAN TAMBUSAI Community Engagement and Emergence Journal (CEEJ) MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering Suluah Bendang: Jurnal Ilmiah Pengabdian Kepada Masyarakat Teknomekanik Jurnal Vokasi Mekanika Journal of Community Service Tsaqofah: Jurnal Penelitian Guru Indonesia MASALIQ: Jurnal Pendidikan dan Sains Al-DYAS : Jurnal Inovasi dan Pengabdian kepada Masyarakat
Irzal, Irzal
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Religion Humanities Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Mechanical Engineering Social Sciences Other

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From passive to critical consumption: The role of educational content in short videos to improve students' critical thinking skills Aspar, Fathir; Refdinal, Refdinal; Erizon, Nelvi; Jasman, Jasman; Irzal, Irzal; A, Yufrizal
Jurnal Pendidikan Teknologi Kejuruan Vol 8 No 1 (2025): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jptk.v8i1.42323

Abstract

The engaging and personalized nature from short video makes it quickly popular, yet concerns persist about their potential to diminish critical thinking skills. This study investigates whether short videos with educational content can improve students' critical thinking skills. Using a quasi-experiment method, Thirty-three participants were divided into control and experimental groups, with critical thinking measured using the Holistic Critical Thinking Scoring Rubric (HCTSR) based on essay analysis in pretest and posttest. After administering educational short videos to the experimental group, the results showed that there was an increase in students' critical thinking skills, shown by the result of controlling the pretest variable through the ANCOVA test with a p-value of <0.001. The result highlights the potential of educational short videos as tools for fostering critical thinking by providing interventions which prioritize treatment fidelity through standardized protocols (SOPs) for content delivery, validating assessment tools, and structuring content design. Recommendations for future research include larger sample sizes, repeated data collection at strategic intervals, and rigorous validation of question complexity.
Optimizing vertical-axis wind turbine designs: A comparative CFD analysis of savonius, darrieus, and savonius-darrieus configurations Erizon, Nelvi; Refdinal, Refdinal; Jasman, Jasman; Irzal, Irzal; A, Yufrizal; Fahrezi, Muhammad Shadiq; Fernanda, Firza; Fadillah, Egi; Pepito, Ma Leona Maye B.
Teknomekanik Vol. 8 No. 2 (2025): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/teknomekanik.v8i2.33172

Abstract

This study aims to evaluate the performance of vertical-axis wind turbines (VAWTs) with three different configurations, including Savonius, Darrieus, and a Savonius-Darrieus hybrid wind turbine, using Computational Fluid Dynamics (CFD) simulations. The methodology involves 3D geometry modeling, simulation parameter setup, meshing, and post-simulation analysis using SolidWorks 2022 software. The simulation results indicate that the Savonius turbine achieves the highest power coefficient (Cp) and torque coefficient (Ct) among the three designs, with a maximum Cp value of 0.5 at a Tip-Speed Ratio (TSR) of 0.4. Conversely, the hybrid turbine demonstrates lower efficiency, although it theoretically offers potential for improving performance at low wind speeds. Pressure and flow velocity distributions reveal that the Savonius turbine maintains the most stable pressure pattern compared to the other configurations. These findings highlight the potential of the Savonius turbine as a small-scale renewable energy solution, particularly in urban areas with low wind speeds. Further research is recommended to optimize hybrid turbine designs using machine learning approaches and empirical validation through field experiments to support the achievement of Sustainable Development Goals (SDGs), particularly Goal 7, affordable and clean energy.
Empowering Farming Communities through the Application of Appropriate Technology in the Rice Polishing Machine in Koto Padang Village Dharmasraya Regency Ardi, Junil; Fernandes, Erik; Irzal, Irzal; Primawati, Primawati; Dasa Putri, Lili
SPEKTRUM: Jurnal Pendidikan Luar Sekolah (PLS) Vol 14, No 1 (2026): SPEKTRUM: Jurnal Pendidikan Luar Sekolah (PLS): Publishing Februari 2026
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/spektrumpls.v14i1.137808

Abstract

This community service program aims to empower rice farmers in Koto Padang Village, Dharmasraya Regency, through the application of appropriate technology in the form of a rice polishing machine (polisher). The main problems faced by farmers were the absence of local polishing facilities and dependence on rice milling units in neighboring villages, which increased transportation costs, processing time, and reduced product quality. The implementation method used a participatory technology approach involving lecturers, students, and the Rawang Bintungan Farmers Group. The activity consisted of several stages: field survey, problem identification, machine design using SolidWorks, fabrication, testing, training, and handover. The machine, driven by a 7 HP motor, has a working capacity of 300–500 kg/hour with 90–95% milling efficiency. Results show that the machine reduced operating costs by up to 30% and increased rice yield quality and polishing efficiency compared to traditional methods. Furthermore, 90% of the trained participants were able to operate and maintain the machine independently. This program demonstrates that collaborative innovation between universities and local communities can strengthen food security and farmer independence through sustainable technology transfer.
Pengaruh Sarana Prasarana Bengkel Las dan Motivasi Belajar Praktik terhadap Hasil Belajar Siswa pada Mata Pelajaran Shielded Metal Arc Welding (SMAW) Kelas XI Teknik Pengelasan SMK Negeri 1 Sumatera Barat Manik, Yeremia Owen; Rahim, Bulkia; Irzal, Irzal; Indrawan, Eko
TSAQOFAH Vol 5 No 3 (2025): MEI
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/tsaqofah.v5i3.5956

Abstract

This study is motivated by the crucial role of practical facilities and student learning motivation in supporting learning outcomes, particularly in SMAW welding practice instruction at vocational high schools. The objective of this research is to determine the influence of welding workshop facilities and practical learning motivation on the learning outcomes of Grade XI Welding Engineering students at SMK Negeri 1 West Sumatra. The study uses a quantitative method with a correlational approach, involving 25 students as the sample. Data were collected through questionnaires, documentation, and observation, and analyzed using simple and multiple linear regression. The results show that: (1) welding workshop facilities significantly affect student learning outcomes, with a t value of 2.762 and the regression equation Y = 57.235 + 0.328X₁; (2) practical learning motivation also significantly affects learning outcomes, with a t value of 3.095 and the regression equation Y = 55.981 + 0.338X₂; (3) simultaneously, both variables have a positive and significant effect on student learning outcomes, with a coefficient of determination R² = 0.315 and the regression equation Y = 52.831 + 0.812X₁ + 1.451X₂. These findings confirm that the availability of adequate practice facilities and high practical learning motivation together can improve student learning outcomes in SMAW welding subjects. The implication is that schools need to ensure the provision of appropriate practice facilities and foster student motivation through contextual and participatory learning strategies.
Pengaruh Fasilitas Peralatan Praktik terhadap Hasil Keterampilan Pengelasan Siswa Kelas XI Jurusan Teknik Pengelasan dan Fabrikasi Logam di SMK Negeri 2 Payakumbuh. Abdilah, Zikri; Irzal, Irzal; Afnison, Wanda; Alfana, Yogi Dian
TSAQOFAH Vol 6 No 3 (2026): MEI
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/tsaqofah.v6i3.9747

Abstract

Welding is one of the essential competencies that students in the Welding and Metal Fabrication Engineering Expertise Program must possess. However, the practical learning process still faces limitations in equipment facilities, both in terms of quantity and usability, requiring students to take turns using the equipment and making practice time less effective. This condition has the potential to affect students’ welding skill outcomes. This study aims to determine the effect of practical equipment facilities on the welding skill outcomes of Grade XI students in the Welding and Metal Fabrication Engineering Department at SMK Negeri 2 Payakumbuh. This study employed a quantitative approach with a correlational method. The research population included all Grade XI students in the Welding and Metal Fabrication Engineering Department of SMK Negeri 2 Payakumbuh, totaling 55 students. The sample was determined using the total sampling technique, so the entire population was used as the research sample. Data were collected through a questionnaire to measure practical equipment facilities and an assessment rubric to measure students’ welding skills. Data analysis included prerequisite analysis tests, namely normality, linearity, and homoscedasticity tests, as well as hypothesis testing using simple linear regression, the t-test, and the coefficient of determination (R²). The results show that practical equipment facilities do not have a significant effect on students’ welding skill outcomes, with a significance value of 0.318 > 0.05. The coefficient of determination (R²) value of 0.019 indicates that practical equipment facilities can explain only 1.9% of the variation in students’ welding skill outcomes, while 98.1% is influenced by other factors outside this study. In addition, the direction of the relationship obtained is negative and not significant, with a regression coefficient value of -0.187. The conclusion of this study emphasizes that practical equipment facilities are not the main factor determining students’ welding skills; rather, other factors play a greater role, such as interest, motivation, theoretical understanding, and the learning process. The implications of this study emphasize the importance of a more comprehensive evaluation of practical learning by considering students’ internal factors and the quality of the vocational learning process.
Co-Authors A, Yufrizal Abdilah, Zikri Agustian, Ganda Aldio, Muhammad Fikhri Ambiyar, Ambiyar Andre Kurniawan Arafat, Andril Ardi, Junil Aspar, Fathir Budi Syahri Bulkia Rahim Caniago, Yusuf Dori Yuvenda Eko Indrawan Erizon, Nelvi Fadillah, Egi Fahrezi, Muhammad Shadiq Fajri, Husnul Fajrin, M Fauza, Anna Niska Febri Prasetya Fernanda, Firza Fernandes, Erik Fikri, Ikhsanul Firdaus, Afzanul Fitra, Dinul Fitrah Qalbina Habibie Habibie Hardi, Fidel Apria Ismail, Havis Jasman Jasman Junil Adri Kelvin Permana Saputra, Dwi Khairul, Farid Lili Dasa Putri Manik, Yeremia Owen Maryonda, Andre Milana Milana Nabawi, Rahmat Aziz Nurdin Hendri Nurmahmudi, Nurmahmudi Pebrian, Pebrian Pepito, Ma Leona Maye B. Primawati Primawati, Primawati Purwantono, Purwantono Putra, Setrihan Rahmadiawan, Dieter Ramadan, Ryan Ramadhan, Qadri Refdinal, Refdinal Remon Lapisa Rifelino Rifelino Saputra, Aprizal Saputra, Muhammad Pandi Shi, Shih-Chen Sidiq, Ahmad Halim sudiani, yoni Syahril Syahril Syaputra, Ardiansyah Tin, Chau Trung Wanda Afnison Waskito Waskito, Waskito Wulansari, Rizky Ema Yogi Dian Alfana Yolli Fernanda Yufrizal Yufrizal, Yufrizal Zainal Abadi Zaus, Anggi Agni Zhuang, Wei-Ting