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All Journal Jurnal Pendidikan Teknologi dan Kejuruan Sainstek Jurnal Ilmiah Poli Rekayasa Jurnal Inovasi Teknologi Pendidikan VANOS Journal of Mechanical Engineering Education JOIV : International Journal on Informatics Visualization Edukasi: Jurnal Pendidikan INVOTEK: Jurnal Inovasi Vokasional dan Teknologi Martabe : Jurnal Pengabdian Kepada Masyarakat Mimbar Ilmu Ensiklopedia of Journal Ensiklopedia Education Review Community Engagement and Emergence Journal (CEEJ) Jurnal Ilmiah Profesi Pendidikan MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering PAKAR Pendidikan Teknomekanik ARSY : Jurnal Aplikasi Riset kepada Masyarakat MSI Transaction on Education AEEJ : Journal of Automotive Engineering and Vocational Education EduLine: Journal of Education and Learning Innovation Jurnal Vokasi Mekanika Journal of Community Service Tsaqofah: Jurnal Penelitian Guru Indonesia Ensiklopedia Research and Community Service Review Ranah Research : Journal of Multidisciplinary Research and Development Jurnal Pendidikan Sosial dan Konseling JTPVI: Jurnal Teknologi dan Pendidikan Vokasi Indonesia J-CoSE: Journal of Community Service & Empowerment Journal of Authentic Research Jurnal Imiah Pengabdian Pada Masyarakat (JIPM) Venus: Jurnal Publikasi Rumpun Ilmu Teknik Orbit : Jurnal Ilmu Multidisiplin Nusantara
Donny Fernandez
Universitas Negeri Padang
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Mechanical Engineering Public Health Social Sciences Transportation Other

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Rancang Bangun Panel Instalasi Listrik dengan Prinsip Engineering Safety Ruang Spray Booth Pengecatan Bodi Kendaraan Aldi Zulkarnain Hasibuan; Donny Fernandez; Andrizal Andrizal; Nuzul Hidayat
Venus: Jurnal Publikasi Rumpun Ilmu Teknik  Vol. 3 No. 6 (2025): Venus: Jurnal Publikasi Rumpun Ilmu Teknik
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/venus.v3i6.1265

Abstract

This study aims to design and develop an electrical installation panel by applying engineering safety principles in the water spray booth of a vehicle body painting system. Field observations indicate that electrical panels in painting rooms often do not meet safety standards, which can lead to short circuits and potential fire hazards. The research employed a Research and Development (R&D) method using a simplified Borg and Gall model consisting of nine stages, starting from problem identification to effectiveness testing. Expert validation results obtained a score of 87.5% (highly valid), practicality testing yielded 90% (very practical), and effectiveness tests showed an average current of 4.1 A, with both the MCB and emergency stop functioning optimally. The developed panel product is declared feasible to be used as a practical learning media for automotive electrical systems. Based on the test results, the panel product was declared suitable for use and can be used as a learning medium in automotive electrical practice, helping to increase understanding of the application of safety in electrical installations in the automotive industry.  
Pemberdayaan Kelompok Tani dalam Pemanfaatan Limbah Pelepah Sawit sebagai Pakan Ternak Berbasis Teknologi Tepat Guna Refdinal, Refdinal; Erizon, Nelvi; Fernandez, Donny; Arfianti, Fina
ARSY : Jurnal Aplikasi Riset kepada Masyarakat Vol. 6 No. 3 (2025): ARSY : Jurnal Aplikasi Riset kepada Masyarakat
Publisher : Lembaga Riset dan Inovasi Al-Matani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55583/arsy.v6i3.1715

Abstract

Kegiatan pengabdian kepada masyarakat ini dilaksanakan untuk memberdayakan kelompok tani Boncah Bungo Tanjuang di Kabupaten Pasaman Barat melalui penerapan teknologi tepat guna dalam pemanfaatan limbah pelepah sawit sebagai bahan pakan ternak alternatif. Permasalahan utama yang dihadapi mitra adalah kesulitan memperoleh pakan ternak akibat keterbatasan lahan hijauan, tingginya biaya pakan komersial, dan belum optimalnya pemanfaatan limbah pertanian. Padahal, daerah ini memiliki potensi limbah pelepah sawit yang melimpah dari aktivitas perkebunan, namun selama ini belum dimanfaatkan secara maksimal. Program ini bertujuan untuk meningkatkan efisiensi penyediaan pakan ternak, mengurangi limbah pertanian, dan mendorong kemandirian ekonomi peternak melalui inovasi mesin pencacah pelepah sawit. Metode pelaksanaan meliputi analisis kebutuhan mitra, perancangan dan pembuatan mesin pencacah, uji coba dan pelatihan operasional mesin, serta pendampingan penerapan teknologi di lapangan. Hasil kegiatan menunjukkan bahwa mesin pencacah berkapasitas 200–300 kg/jam mampu menghasilkan potongan pelepah sawit berukuran 1–3 cm yang mudah dikonsumsi ternak. Penggunaan pelepah sawit sebagai pakan mampu menekan biaya pakan hingga 40%, meningkatkan ketersediaan pakan sepanjang tahun, dan mengurangi pencemaran lingkungan akibat pembakaran limbah. Kegiatan ini juga meningkatkan keterampilan peternak dalam penggunaan dan perawatan mesin, serta memperkuat sinergi antara perguruan tinggi dan masyarakat dalam penerapan teknologi tepat guna yang berkelanjutan.
Hydrodynamic optimization of a Sweptback Stern Foil for resistance reduction in flat-hull ships: A CFD-based extension of the Hull Vane concept Nabawi, Rahmat Azis; Syahri, Budi; Alfana, Yogi Dian; Fernandez, Donny
Teknomekanik Vol. 9 No. 1 (2026): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/teknomekanik.v9i1.54872

Abstract

Flat-hull ships are known to have higher resistance than streamlined hulls. Although the Hull Vane® concept has been proven effective as a stern-mounted energy-saving device through pressure-field modification and stern-wave interaction, most previous studies have focused on straight-foil configurations (straight planform). The effect of planform shape optimization, particularly the sweptback configuration, on the hydrodynamic performance of flat-hull ships is limited in the literature. This study modifies the geometry of a Hull Vane® into a sweptback stern foil and evaluates its performance using Computational Fluid Dynamics simulations. The results show that a 15° sweptback angle yields the greatest reduction in total drag. Velocity contour analysis shows a narrower wake and a more uniform velocity-gradient distribution in the stern area for the 15° swept-back stern-foil configuration compared to other configurations. Meanwhile, the turbulence length distribution shows a tendency toward reduced intensity of large-scale turbulent structures behind the ship, indicating improved wake-flow characteristics. The identified drag reduction mechanism primarily stems from improved pressure recovery and modified pressure distribution in the stern area, which is consistent with the working principle of Hull Vane®. Optimizing the sweptback planform geometry yields more efficient flow interaction than the straight-foil configuration. These findings indicate that planform optimization is an important design parameter in the development of stern foils to improve the hydrodynamic efficiency of medium-to high-speed commercial vessels.
Systematic Literature Review: Pengembangan Video Pembelajaran Perawatan CVT Sepeda Motor Matic pada Pendidikan Vokasi Ramadhan S, Yasir; Sugiarto, Toto; Wagino, Wagino; Fernandez, Donny
Jurnal Ilmiah Profesi Pendidikan Vol. 11 No. 1 (2026): Februari
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jipp.v11i1.4752

Abstract

Perawatan sistem Continuously Variable Transmission (CVT) sepeda motor matic 4 tak menuntut penguasaan keterampilan prosedural yang sistematis dan kemampuan troubleshooting yang akurat, namun keterbatasan waktu praktik dan variasi kemampuan peserta didik sering menghambat pencapaian kompetensi. Penelitian ini bertujuan mensintesis bukti empiris mengenai efektivitas video pembelajaran (instructional video/video-based learning) dalam mendukung pembelajaran keterampilan prosedural pada pendidikan teknik dan vokasi sebagai dasar pengembangan video perawatan CVT. Metode yang digunakan adalah systematic literature review dengan protokol PRISMA 2020. Data diperoleh dari database Scopus (n = 1087) dan diseleksi melalui tahap identifikasi, penyaringan judul dan abstrak, penilaian kelayakan, hingga diperoleh 50 artikel untuk dianalisis secara tematik. Hasil sintesis menunjukkan bahwa efektivitas video pembelajaran ditentukan oleh penerapan prinsip desain instruksional berbasis multimedia, seperti segmentasi, signaling, dan pengelolaan beban kognitif, serta implementasi melalui pendekatan blended dan flipped learning untuk mengoptimalkan waktu praktik. Kesimpulannya, pengembangan video CVT berbasis bukti dengan demonstrasi prosedural terstruktur dan integrasi aktivitas belajar berpotensi meningkatkan kompetensi otomotif serta relevansi pembelajaran dengan kebutuhan industri bengkel.
Sosialisasi Stunting dalam Kegiatan KKN: Upaya Meningkatkan Kesadaran Masyarakat akan Gizi Seimbang Fernandez, Donny; Indriani, Rahma Ega; Sari, Utia Afma; Azzahra, Dianda Nurul; Budiman, Debi Putra
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.v5i3.5989

Abstract

Stunting awareness campaigns conducted through the Community Service Program (Kuliah Kerja Nyata/KKN) serve as a strategic initiative to raise public awareness about the importance of balanced nutrition for child growth and development, considering that stunting resulting from chronic nutritional deficiencies can have long-term effects on children's physical and cognitive development. In this activity, students acted as agents of change by educating the community on healthy eating patterns, the importance of exclusive breastfeeding, and routine child growth monitoring. The outreach methods included counseling sessions, interactive discussions, demonstrations of nutritious food preparation, and social media campaigns to reach a broader audience. Challenges encountered included low public understanding and limited access to nutritious food. However, through participatory approaches and collaboration with healthcare professionals and local government, the activity successfully increased community awareness of the dangers of stunting and preventive measures. The implementation results showed a significant improvement in understanding the importance of family nutrition, with the potential to contribute to a reduction in stunting rates in the target area. This initiative not only produced short-term impacts but also fostered long-term awareness that supports healthy lifestyles within families. Therefore, stunting-focused KKN programs should continue to be developed and expanded to promote the emergence of a healthy and stunting-free generation.
Systematic Literature Review: Pengembangan Video Pembelajaran Perawatan CVT Sepeda Motor Matic pada Pendidikan Vokasi Yasir Ramadhan S; Toto Sugiarto; Wagino Wagino; Donny Fernandez
Jurnal Ilmiah Profesi Pendidikan Vol. 11 No. 1 (2026): Februari
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jipp.v11i1.4752

Abstract

Perawatan sistem Continuously Variable Transmission (CVT) sepeda motor matic 4 tak menuntut penguasaan keterampilan prosedural yang sistematis dan kemampuan troubleshooting yang akurat, namun keterbatasan waktu praktik dan variasi kemampuan peserta didik sering menghambat pencapaian kompetensi. Penelitian ini bertujuan mensintesis bukti empiris mengenai efektivitas video pembelajaran (instructional video/video-based learning) dalam mendukung pembelajaran keterampilan prosedural pada pendidikan teknik dan vokasi sebagai dasar pengembangan video perawatan CVT. Metode yang digunakan adalah systematic literature review dengan protokol PRISMA 2020. Data diperoleh dari database Scopus (n = 1087) dan diseleksi melalui tahap identifikasi, penyaringan judul dan abstrak, penilaian kelayakan, hingga diperoleh 50 artikel untuk dianalisis secara tematik. Hasil sintesis menunjukkan bahwa efektivitas video pembelajaran ditentukan oleh penerapan prinsip desain instruksional berbasis multimedia, seperti segmentasi, signaling, dan pengelolaan beban kognitif, serta implementasi melalui pendekatan blended dan flipped learning untuk mengoptimalkan waktu praktik. Kesimpulannya, pengembangan video CVT berbasis bukti dengan demonstrasi prosedural terstruktur dan integrasi aktivitas belajar berpotensi meningkatkan kompetensi otomotif serta relevansi pembelajaran dengan kebutuhan industri bengkel.
EFEKTIVITAS PENGGUNAAN WATER TRAP PADA SISTEM UDARA KOMPRESOR TERHADAP TINGKAT KEKILAPAN CAT DALAM PROSES PENGECATAN BODI KENDARAAN Fatjratul Isnandar; Donny Fernandez; Hasan Maksum; Iffarial Nanda
Ensiklopedia Research and Community Service Review Vol 5, No 3 (2026): Vol. 5 No. 3 Juni 2026
Publisher : Ensiklopedia Research and Community Service Review

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33559/err.v5i3.3830

Abstract

Abstract: The quality of vehicle body painting results is largely determined by the condition of the compressed air used during the spraying process. Compressor air containing water vapor can cause various surface defects such as blistering, pinholing, orange peel, and fisheye, which directly reduce the gloss level of the paint surface. This study aims to examine the effectiveness of using a water trap in the compressor air system on improving painting quality, measured through gloss values using a gloss meter. A quantitative experimental method was employed with two treatment groups: painting without a water trap and painting with a water trap, each tested three times. Results showed that the average gloss value without a water trap was 98 GU, while with a water trap it was 103.33 GU, representing an increase of 5.44%. An independent t-test revealed a significant difference (t = 7.99; Sig. = 0.001 0.05). It is concluded that the use of a water trap significantly improves painting quality by enhancing the atomization process through reduced moisture content in compressed air.Keywords: Water trap, Gloss meter, Painting, Compressor Air, Atomization.
STUDI KOMPARATIF KESTABILAN ARUS DAN TEGANGAN AKI PADA SISTEM PENGISIAN HALFWAVE DAN FULLWAVE DENGAN BEBAN PENERANGAN LED PADA SEPEDA MOTOR M. Fadhil Dianugraha; Donny Fernandez; Rifdarmon Rifdarmon; Nuzul Hidayat
Ensiklopedia Research and Community Service Review Vol 5, No 3 (2026): Vol. 5 No. 3 Juni 2026
Publisher : Ensiklopedia Research and Community Service Review

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33559/err.v5i3.3949

Abstract

Abstract: The charging system is a vital component on motorcycles because it functions to supply electric current and recharge the battery. The 2014 Honda Supra X 125 motorcycle uses a halfwave charging system that only utilizes half the cycle of alternating current waves so that the charging current is relatively small and unstable, especially when overloaded with an LED lighting system that requires direct current. This study aims to compare the stability of current and battery voltage between halfwave and fullwave charging systems when using lighting loads, bulbs, and full LED lights. The study used an experimental quantitative approach with a pretest-posttest control group design, in which the standard charging system (halfwave) was modified to fullwave. The parameters measured include regulator voltage, battery voltage, State of Health (SOH), State of Charge (SOC), and ripple frequency at engine off and engine running conditions of 1,400 RPM. The results showed that the voltage of the fullwave regulator (13.04 V) was higher than that of the halfwave (10.84 V). In the condition of the engine running with full LED load, only the fullwave system experienced an increase in battery voltage by +1.40 V, while other combinations experienced a decrease. The SOH and SOC values in the fullwave system are more maintained, and the ripple frequency of the fullwave (maximum 45.70 Hz) is lower than that of the halfwave (maximum 84.70 Hz). It can be concluded that a fullwave charging system is more effective at maintaining current and voltage stability as well as battery life than halfwave.Keywords: Charging System, Halfwave, Fullwave, LED Light, Battery Life, Ripple
NOx Content Analysis In Ambient Air: Public Policy Perspectives And Implications For Sustainable Development In Padang City Donny Fernandez; Genius Umar; Indang Dewata; Syamsul Amar; Ahmad Juanda
AEEJ : Journal of Automotive Engineering and Vocational Education Vol 6 No 2 (2025): Vol 6 No 2 (2025) : AEEJ : Journal of Automotive Engineering and Vocational Educa
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/aeej.v6i2.291

Abstract

This paper presents data from the ambient air quality monitoring of Padang City and its implications for sustainable development public policy. Urban growth and transportation and industrial activities have the potential to increase nitrogen gas emissions. Air monitoring was conducted at strategic locations in Padang City that represent anthropogenic activities. The nitrogen gas concentration data obtained were analyzed descriptively and spatially to identify the level of pollutants in the air. Monitoring results were linked to sustainable development indicators, particularly those related to public health (SDG 3) and cities and settlements (SDG 11). This paper aims to provide input for policy makers to strategize the sustainable development of Padang city.
Analisis Perbandingan Kekerasan Beberapa Merk Katup Sepeda Motor Matic Arif Rahmat Ali; Hasan Maksum; Donny Fernandez
AEEJ : Journal of Automotive Engineering and Vocational Education Vol 1 No 2 (2020): AEEJ : Journal of Automotive Engineering and Vocational Education
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/aeej.v1i2.11

Abstract

This article discusses a comparison of the hardness of several valve brands for automatic motorbikes. This research used comparative study method. The motorbike used was the Honda VARIO 110 cc motorcycle. Meanwhile, the valves used and compared are Honda Genuine Parts and several brands of aftermarket valves. The results showed that the hardest intake valve head was the Genuine Valve with 61.7 HRA and the hardest exhaust valve head was the NPP with 58.9 HRA. Artikel ini membahas mengenai perbandingan kekerasan beberapa merek katup untuk sepeda motor matic. Penelitian ini menggunakan metode penelitian komparatif. Sepeda motor yang digunakan adalah Sepeda Motor Honda VARIO 110 cc. Sementara untuk katup yang digunakan dan diperbandingkan adalah Honda Genuine Parts dan beberapa merk Katup aftermarket. Hasil penelitian menunjukkan payung katup masuk yang paling keras yaitu payung katup Original 61,7 HRA dan payung katup buang yang paling keras yaitu payung katup NPP 58,9 HRA.
Co-Authors Abdurrahman Hafidz Aditya Asadifa Saputra Afriza, Weny Late Agus Prayuda Ahmad Arif Ahmad Arif Ahmad Juanda Ahmad Juanda Aken Derisman Aldi Zulkarnain Hasibuan Aldri Frinaldi Alfan Rifani Alfansury, Fikhry Alfian Asra Altifani Dasla Ambiyar, Ambiyar Ananta Azmi Andrizal Andrizal Andrizal Andrizal Andrizal Andry Amanda Batubara Angga Bahri Pratama Anggi Nur Adnan Anna Niska Fauza Anori, Sartika Arfianti, Fina Arhaya Umil Azmah Ariefni, Naufal Rafif Arif Rahmat Ali Aulia Novira Azzahra, Dianda Nurul Baehaqi Baharudin, Agus Bahri, Muhammad Jihadvi Athiya Bahri Bima Rahmat Maulana Budi Syahri Budiman, Debi Putra Chandra, R Citra Sri Rahmadani Dani Saputra, Hendra Dasman Lanin Dedi . Dedi Setiawan Dedi Setiawan Delvina, Mery Dieter Rahmadiawan Dwi Aksa, Azezen Dwi Sudarno Putra edy susanto Efrizal, Yondri Elviza Yeni Putri Erawati, Susi Erizon, Nelvi Erzeddin Alwi Fadhil, Fharizal Fahmi Otriza Fatjratul Isnandar Fauzil, Achmat Fauzil Fawwaz Naufal Febiola, Mutiara Diva Genius Umar Gito Gito Giantoro - Hakiki, Syarah Nur Hakim, Bambang Nur Hamdani, Riko Handini Novita Sari Hasan Maksum Heldi Heldi, Heldi Hendra Dani Saputra Iffarial Nanda Ilham Akbar Maulana Ilham Sadni Putra ilham yuliady Imam Dinul Salam Indang Dewata Indriani, Rahma Ega Intan Burtian Irvan Ramdani Jamhur, Annisak Izzaty Jheri Hermanto Joni, Rahmi Rahmahwati Jufrizan, Al Junil Adri Karin Gifa Ananta Sari Kevin Lisson Putra Khalik Rahmat Hidayah Koto, Rahmat Desman Kuo, Hsu-Chan Lili Dasa Putri Lubis, Govin Setiawan M Ilham Sanusi M Joko M. Abdi Rizal M. Fadhil Dianugraha M. Fatih Meutuah Nasution M. Yasep Setiawan M.Yasep Setiawan Maiputra, Fikli Restu Martias Martias Martias Martias Maulana Ilyas, Taufiq Maulana, Fauzan Maulana, Ihsan Meka Arisma Sari Meri Azmi Mhd. Azhari Miftahul Rizki Milana Milana Mishbahul Badri Muhammad Al Rohan Afrullah Muhammad Khalikul Fadly Munawir Harahap Muslim Muslim Nabawi, Rahmat Azis Nanda, Iffarial Nanda, Iffarial Nasti, Prayudi Nauval, Roid Nelvi Erizon Nizwardi Jalinus Nofrianto Putra Nur Asiah Nuzul Hidayat, Nuzul Osvaldo Adven Kurniawan Prima Nefri Zofa Purnama, Alvin Purwanto, Wawan Purwantono Purwantono Putra Jasman, Yusril Putra, Nofrianto Putra, Rido Putra, Rifan Gusnadi R Candra R Chandra R. Chandra R. Chandra Rahmadani Rahmadani Rahmadiawan, Dieter Rahmatul Azizah Raihan Oktarilta Rakasiwi, Sasha Dilla Ramadhan S, Yasir Ramadhan, Thoriq Ramadhania, Amdanova Refdinal, Refdinal Refdinal, Refdinal Regi Valentio Rembrandt, Rembrandt Remon Lapisa Ridwan Rifdarmon Rifdarmon Rifdarmon Rifdarmon, Rifdarmon Rifelino Rifelino Rizki Alfarizi Roza Putri Mawarti Rudi Sandra Arifin Sandhy Rhana Rhandika Sanusi, M Ilham Sari, Utia Afma Simatupang, Wakhinuddin Siregar, Martin Rafael Sugeng Susanto Sugiarto, Toto Sulastri, Ayu Sutiman Sutiman, Sutiman Syafri, Rifki Randa Syamsul Amar Syamsul Amar B Tiara Mahardika Toto Sugiarto Toto Sugiarto Umar, Genius Vhannesti, Citra Victor Prudentius Wagino Wagino , Wagino Wahyu Yadispama Maiga Wakhinuddin S Wanda Afnison Waskito Waskito Waskito, Waskito Wendi Leo Agustin Whustha Khairul Yasep Setiawan, M Yasir Ramadhan S Yeni Elviza Febrianti Yogi Dian Alfana Yogianda Aprilindo Yondri Efrizal Yosua Partogi Sihole Yoszi Mingsi Anaperta Yulian, Yoga Ahmad Zapit, Dandi Wahyudi Zikri, Zikri