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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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PENGARUH MEDIA PEMBELAJARAN PENGELASAN VIRTUAL REALITY TERHADAP HASIL BELAJAR SISWA PADA MATA PELAJARAN TEKNIK PENGELASAN SMAW KELAS XI TPM SMK NEGERI 5 PADANG Syaputra, Ardiansyah; Prasetya, Febri; Irzal, Irzal; Kurniawan, Andre
Jurnal Vokasi Mekanika (VoMek) Vol 6 No 3 (2024): Jurnal Vokasi Mekanika
Publisher : Departemen Teknik Mesin Fakultas Teknik Unversitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/vomek.v6i3.730

Abstract

Masih banyak siswa yang kesulitan dalam mencapai pembelajaran yang optimal pada mata pelajaran teknik pengelasan shield metal arc welding (SMAW). Selain itu, siswa juga kurang memahami bahan-bahan las busur, termasuk cara penggunaan alat dan cara penggunaannya. Penelitian ini memiliki tujuan mengetahui bagaimana media pembelajaran virtual reality (VR) mempengaruhi pengaruh belajar siswa pada mata pelajaran Teknik Pengelasan SMAW di Kelas XI SMK Negeri 5 Padang. Pengelasan VR digunakan sebagai media pembelajaran dengan menggunakan pendekatan kuantitatif dan desain quasi eksperimen. Penelitian ini melibatkan 1 kelas penelitian dan 1 kelas pemantauan, dengan jumlah siswa di kelas penelitian sebanyak 33 siswa dan kelas pemantauan berjumlah 34 siswa. Untuk mengetahui kemampuan keterampilan siswa, pengumpulan informasi dilakukan dengan menggunakan evaluasi pretest dan posttest. Selain itu dilakukan uji prasyarat guna menguji homogenitas dan normalitas data perolehan belajar siswa. Hasil eksperimen mengindikasikan bahwa uji t memunculkan nilai signifikansi dua sisi sejumlah 0,007 makin rendah daripada 0,05. Rata-rata persentase kelas penelitian sejumlah 80,06 dan rata-rata persentase kelas pengawasan sejumlah 75,88. Hal ini membuktikan bahwa pemanfaatan media pembelajaran virtual mampu mempengaruhi hasil belajar siswa kelas penelitian.
The effectiveness of the case method to improve student learning outcomes in the SMAW subject Fajrin, M; Purwantono, Purwantono; Irzal, Irzal; Rahim, Bulkia; Zaus, Anggi Agni
Jurnal Pendidikan Teknologi Kejuruan Vol 6 No 4 (2023): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jptk.v6i4.34723

Abstract

This study aims to assess the effectiveness of the case method for improving student learning outcomes in the SMAW (Shielded Metal Arc Welding) subject. This research employs classroom action research. The subjects of this study are 11th-grade students majoring in Mechanical Engineering at State Vocational High School 1 Silaut, West Sumatra, Indonesia. Data collection techniques include observation sheets to assess teacher and student activities, tests to evaluate students’ knowledge, and documentation to support the research. The study results indicate that implementing the case method teaching model effectively improves student learning outcomes because students are engaged and interested in learning. This is evident in the learning outcomes in cycle 1, where 64.29% of students achieved passing grades, with nine passing, while 35.71% did not pass, with five students falling short. In cycle 2, student learning outcomes improved to 78.57%, with 11 students passing, while 21.43% did not pass, with three students not meeting the passing criteria. In conclusion, the case method teaching model effectively enhances student learning outcomes in the SMAW subject.
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.
Co-Authors A, Yufrizal Agustian, Ganda Aldio, Muhammad Fikhri Ambiyar, Ambiyar Andre Kurniawan Arafat, Andril Ardi, Junil Aspar, Fathir Ayusran, Reyvanda 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 Maryonda, Andre Milana Milana Nabawi, Rahmat Aziz Nurdin Hendri Nurmahmudi, Nurmahmudi Pebrian, Pebrian Pepito, Ma Leona Maye B. Prabulingga, Reza Ramadhan 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 Yolli Fernanda Yufrizal Yufrizal, Yufrizal Zainal Abadi Zaus, Anggi Agni Zhuang, Wei-Ting