Article Per Year (5 Year)
p-Index From 2021 - 2026
7.514
P-Index
This Author published in this journals
All Journal Jurnal Pendidikan Teknologi dan Kejuruan JINOP (Jurnal Inovasi Pembelajaran) VANOS Journal of Mechanical Engineering Education Edukasi: Jurnal Pendidikan INVOTEK: Jurnal Inovasi Vokasional dan Teknologi Ensiklopedia of Journal Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Journal of Applied Engineering and Technological Science (JAETS) MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering PAKAR Pendidikan Suluah Bendang: Jurnal Ilmiah Pengabdian Kepada Masyarakat Community Empowerment MSI Transaction on Education AEEJ : Journal of Automotive Engineering and Vocational Education Mechanical Engineering for Society and Industry Automotive Experiences Ensiklopedia Research and Community Service Review JTPVI: Jurnal Teknologi dan Pendidikan Vokasi Indonesia Edumaspul: Jurnal Pendidikan
Ahmad Arif
Automotive Engineering Department, Universitas Negeri Padang
Aerospace Engineering Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Public Health Social Sciences Transportation Other

Published : 68 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 68 Documents
Search

 3   4   5   6   7 
Kontribusi Penerapan Aspek K3 Terhadap Hasil Belajar Siswa Mata Pelajaran PMKR Kelas XI Jurusan TKR di SMKN 2 Payakumbuh Pinto Pratama Afosma; Dwi Sudarno Putra; Milana; Ahmad Arif
MSI Transaction on Education Vol 4 No 3 (2023): MSI Transaction on Education
Publisher : Minangkabau Scholar Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46574/mted.v4i3.120

Abstract

Penelitian ini bertujuan untuk mengukur Kontribusi Penerapan Aspek keselamatan dan kesehatan kerja Terhadap Hasil Belajar Siswa Mata Pelajaran PMKR Kelas XI Jurusan TKR di SMKN 2 Payakumbuh. Penerapan aspek K3 di Sekolah Menengah Kejuruan berpengaruh pada hasil belajar pratikum siswa, dengan tujuan terciptanya hasil belajar yang maksimal ada kaitan penting akan penerapan aspek K3. Metode penelitian ini ini adalah penelitian deskriptif korelasional yang bertujuan untuk menemukan ada tidaknya hubungan antara Aspek K3 dengan hasil belajar pratikum siswa. Berdasarkan pengujian hipotesis, diperoleh nilai r hitung > r tabel 0.266. Setelah dilakukan uji t, diketahui bahwa t hitung > tabel 1,673. Hal ini menunjukan bahwa hipotesis yang menyatakan bahwa terdapat hubungan positif antara kedua variabel (jelas) dengan taraf signifikan 5% secara empiris. dapat disimpulkan bahwa Penerapan Aspek K3 berkontribusi terhadap Hasil Belajar Siswa. This research aims to measure the contribution of implementing occupational health and safety aspects to the learning outcomes of students in the PMKR class XI TKR department at SMKN 2 Payakumbuh. The application of K3 aspects in Vocational High Schools influences students' practical learning outcomes, with the aim of creating maximum learning outcomes, there is an important connection with the application of K3 aspects. This research method is descriptive correlational research which aims to find out whether there is a relationship between K3 aspects and students' practical learning outcomes. Based on hypothesis testing, the calculated r value was 0.753 > r table 0.266. After carrying out the t test, it is known that t count is 5.231 > table 1.673. This shows that the hypothesis states that there is a positive relationship between the two variables (clear) with an empirical significance level of 5%. it can be concluded that the application of K3 aspects contributes to student learning outcomes.
The Fuel System Modification To Strengthen Achievement And The Prospect Of Utilizing Gasoline Ethanol Blended With Water Injection Wawan Purwanto; Tung-Kwan Liu; Hasan Maksum; Ahmad Arif; Muhammad Yasep Setiawan; Muhammad Nasir
Journal of Applied Engineering and Technological Science (JAETS) Vol. 5 No. 2 (2024): Journal of Applied Engineering and Technological Science (JAETS)
Publisher : Yayasan Riset dan Pengembangan Intelektual (YRPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37385/jaets.v5i2.3249

Abstract

This research proposes a fuel system conversion from a carburetor to an electronic fuel injection (EFI), to save fossil fuels using gasoline-ethanol combined with water injection. Beneficial as an offer for Indonesian motorcycle environmental friendliness in terms of exhaust emissions. The goal of this study is to improve engine performance and accommodate technology for the deployment of ethanol gasoline implementations. The experiment was conducted using fuel with a ration octane number (RON) of 92, gasoline-ethanol was executed up to E25 then applied water injection (Wi). The results show that converting a conventional carburetor to EFI and additional water injection increases engine performance, mileage, and reduces exhaust emissions.
The Feasibility Study of Light Vehicle Engineering Electrical Practice Facilities and Infrastructure at Vocational Education School Ahmad Arif; Ambiyar Ambiyar; Nurhasan Syah; R. Chandra; Wawan Purwanto; Nuzul Hidayat; Muhammad Yanda
Edumaspul: Jurnal Pendidikan Vol 6 No 2 (2022): Edumaspul: Jurnal Pendidikan
Publisher : Universitas Muhammadiyah Enrekang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33487/edumaspul.v6i2.4877

Abstract

The completeness and feasibility of infrastructure in the world of education is something that must be considered and fulfilled. This has an impact on learning outcomes and students' abilities. This study aims to determine the feasibility of facilities and infrastructure in the light vehicle engineering electrical practice workshop at Padang 1 State Vocational Education School. This research uses descriptive analysis method. Research data obtained from interviews, documentation, and direct observation at school. The data on facilities and infrastructure that has been obtained is then compared with the standards of facilities and infrastructure listed in the Regulation of the Minister of Education of the Republic of Indonesia number 40 of 2008 and the National Education Standards Agency number 1049-P2 of 2010/2011. The results showed that the level of feasibility of the facilities and infrastructure for the electrical practice light vehicle engineering Padang 1 State Vocational Education School was 56.42% and 53.32% which were included in the feasible category. Existing electrical practice learning facilities and infrastructure can still be used and schools are expected to improve their quality.
Improvement of Teachers' Ability in Creating Modules with Information Technology on Vocational High Schools West Sumatera Hasan maksum; Martias Martias; Wawan Purwanto; Ahmad Arif
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.v6i2.250

Abstract

The purpose of this analysis was to look at the teacher's ability to improve the teacher's ability to develop online-based teaching materials. The transition period between the pandemic and after requires strategies to ensure that the learning transition continues to provide students with comfort in their learning. The activity drew 30 people, all of whom were members of the West Sumatra Automotive Engineering Subject Teacher Consultation. They are divided into two categories: online and offline. The online module work created by the participants will be analyzed to determine the effectiveness of the learning and the teacher's ability to create online modules. As a result, participants can create effective learning modules. However, it takes longer for the presenters to teach those who are online how to complete the task.
Exploration of Engine Parameters for Emission Reduction in Gasoline-Ethanol Fueled Engines Wawan Purwanto; Hasan Maksum; Ahmad Arif; Muhammad Latifur Rochman; Sujito Sujito; Kathleen Ebora Padrigalan
Automotive Experiences Vol. 7 No. 3 (2024)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ae.12467

Abstract

The main objective of this study is to develop spark ignition engine parameters that allow complete combustion while reducing dependence on fossil fuels. To achieve this goal, optimization of compression ratio, gasoline-ethanol mixture, ignition timing, and spark plug type was used. In addition, this study used water injection that continuously injects water before the intake manifold. In this study, the Taguchi method with the L9 orthogonal array was applied. According to the experimental verification results, the best combination to reduce exhaust emission levels is to utilize gasoline-ethanol (E70), a compression ratio (CR) of 15.6:1, an ignition degree of +4°, and a platinum spark plug. Meanwhile, the presence of water injection at 1.45 ml/s helps reduce vehicle exhaust pollutants.
Aerodynamic Approach to Two-Passenger City Car Design: A Study of Square Back and Compact Shapes Randi Purnama Putra; Dori Yuvenda; Remon Lapisa; Wanda Afnison; Milana Milana; M. Yasep Setiawan; Ahmad Arif; Dani Harmanto
Automotive Experiences Vol. 8 No. 2 (2025)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ae.13686

Abstract

The development of lightweight electric cars for urban mobility requires efficient aerodynamic design without sacrificing space efficiency. This study presents a novel method by investigating the combination of a two-seater city car's compact dimensions and square back shape, which has not been extensively researched for low- to medium-velocity vehicles. This study's objective is to assess the design's aerodynamic performance using numerical simulations using the Computational Fluid Dynamics (CFD) approach. The vehicle model is designed with a compact body and square back, which is commonly used in small vehicles with high maneuverability requirements. The simulations are conducted at three different air velocity levels: 10, 20, and 30 m/s. The results of the study showed an increase in the value of the drag coefficient (Cd) along with an increase in flow velocity. At a velocity of 10 m/s, the Cd value was recorded at 0.4536. When the velocity increased to 20 m/s, the drag coefficient increased slightly to 0.4563. Further increases in velocity to 30 m/s resulted in a Cd value of 0.4581. This Cd value shows the consistency of aerodynamic performance with increasing velocity, with fluctuations that remain within the efficiency limits of lightweight vehicles. The pressure distribution contour shows high-pressure accumulation at the front and low pressure at the rear of the vehicle, which generates large turbulent wakes in the rear area and contributes to increased drag. These findings indicate that the square rear body design faces significant aerodynamic challenges. Therefore, design strategies such as adding a rear spoiler, using a rear diffuser, and optimizing the rear body angle are suggested as potential solutions to improve flow efficiency.
Rancang Bangun Prototipe Sistem Pengaman Berbasis Sensor Getaran pada Sepeda Motor Listrik Hasil Konversi Alhimni Rusydi; Dwi Sudarno Putra; Ahmad Arif; Agus Baharudin
JTPVI: Jurnal Teknologi dan Pendidikan Vokasi Indonesia Vol. 4 No. 2 (2026): JTPVI: Jurnal Teknologi dan Pendidikan Vokasi Indonesia
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jtpvi.v4i2.409

Abstract

Perkembangan sepeda motor listrik hasil konversi perlu diikuti dengan sistem pengaman tambahan karena kendaraan jenis ini masih rentan terhadap gangguan atau potensi pencurian. Penelitian ini bertujuan merancang dan menguji prototipe sistem pengaman berbasis sensor getaran pada sepeda motor listrik hasil konversi. Metode yang digunakan adalah Research and Development dengan model ADDIE, meliputi tahap analisis, perancangan, pengembangan, implementasi, dan evaluasi. Sistem dikembangkan menggunakan sensor accelerometer, Arduino Nano, buzzer, dan indikator LED. Hasil pengujian menunjukkan bahwa sistem mampu mendeteksi perubahan percepatan getaran pada rentang 1,2g–1,6g atau 11,76–15,68 m/s². Rentang tersebut digunakan sebagai parameter respons sistem, mulai dari kondisi aman hingga bahaya ringan. Temuan ini menunjukkan bahwa prototipe yang dikembangkan dapat berfungsi sebagai perangkat deteksi gangguan awal pada sepeda motor listrik hasil konversi, dengan kebutuhan pengujian lanjutan pada skenario operasional yang lebih beragam. Converted electric motorcycles require additional security systems because they remain vulnerable to physical disturbances and potential theft. This study aimed to design and test a vibration-sensor-based security system prototype for a converted electric motorcycle. The study employed a Research and Development approach using the ADDIE model, consisting of analysis, design, Development, implementation, and evaluation. The system was developed using an accelerometer sensor, Arduino Nano, buzzer, and LED indicator. Test results showed that the system could detect changes in vibration acceleration within the range of 1.2g–1.6g, equivalent to 11.76–15.68 m/s². This range was used as the system response parameter, from safe condition to minor danger. The findings indicate that the developed prototype can function as an initial disturbance detection device for converted electric motorcycles, although further testing under broader operational scenarios is still required.
DESAIN DAN EFEKTIVITAS VIDEO PEMBELAJARAN PADA PENDIDIKAN VOKASIONAL: SYSTEMATIC LITERATURE REVIEW BERBASIS PRISMA 2020 UNTUK MENDUKUNG MATERI PERAWATAN SISTEM KEMUDI, REM, DAN SUSPENSI Zifa Oktavianza; Toto Sugiarto; Wagino Wagino; Ahmad Arif; Muslim Muslim
Ensiklopedia Research and Community Service Review Vol 5, No 3 (2026): Vol. 5 No. 3 Juni 2026
Publisher : Lembaga Penelitian dan Penerbitan Hasil Penelitian Ensiklopedia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33559/err.v5i3.3839

Abstract

This study presents a systematic literature review (SLR) on the trends, design, and effectiveness of instructional videos in the context of education, procedural learning, and vocational education relevant to the development of steering, brake, and suspension system maintenance materials on 4-stroke cub motorcycles. The data source comes from a Scopus tabulation of 1,400 records. Selection was carried out using the PRISMA 2020 flow based on article metadata (title, author, year, source, document type, and citation). After duplications were removed, screening was limited to articles/reviews from the 2020–2025 period, then thematic relevance screening was carried out to obtain 50 articles for the final synthesis. The review results indicate four dominant themes, namely: (1) instructional video design and effectiveness; (2) interactivity, flipped learning, and YouTube; (3) VR/AR and practicum media; and (4) TVET/vocational and implementation readiness. The synthesis shows that effective instructional videos are characterized by good material segmentation, appropriate visual cues, proportional instructor presence, planned interactivity, and integration with practical or reflection tasks. Furthermore, VR/AR has the potential to enhance procedural learning, but requires cognitive load management. In a vocational context, the quality of implementation is strongly influenced by teachers' digital competencies, digital pedagogical policies, and the relevance of job skills. These findings lead to recommendations for developing automotive learning videos that are concise, procedural, multimodal, problem-based, and integrated with practical evaluation.Keywords: learning videos, instructional videos, vocational education, TVET, PRISMA 2020, virtual reality, YouTube, automotive
Bioethanol Production from Sugarcane Bagasse and Pineapple Peel Waste and Its Combustion Characteristics Diswanto Diswanto; Wawan Purwanto; Ahmad Arif; M. Yasep Setiawan; Irma Wirantina Kustanrika
AEEJ : Journal of Automotive Engineering and Vocational Education Vol 7 No 1 (2026): Vol 7 No 1 (2026) : 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.v7i1.312

Abstract

Growing demand for renewable fuels has increased interest in converting agricultural and fruit-processing residues into bioethanol. This study evaluated sugarcane bagasse and pineapple peel waste as feedstocks for bioethanol production and compared the combustion characteristics of the resulting fuels. Bioethanol was produced through pretreatment, hydrolysis, fermentation using yeast, and distillation. The samples were then examined based on boiling-point range, flame color, flame height, flame area, and flame duration at fuel volumes of 1, 2, and 3 mL. The pineapple peel bioethanol showed a boiling-point range closer to ethanol and produced flame-height values closer to pure ethanol, particularly with 8 g yeast, whereas Pertamax generated the highest flame height and flame area overall. These results indicate that sugarcane bagasse and pineapple peel waste are promising feedstocks for preliminary bioethanol production, with pineapple peel showing better combustion-related characteristics among the waste-derived samples.
Kontribusi PLK Terhadap Kesiapan Menjadi Guru Profesional pada Mahasiswa Pendidikan Teknik Otomotif Universitas Negeri Padang Zikri Fauzi; Wawan Purwanto; R. Chandra; Ahmad Arif; Hendra Dani Saputra
AEEJ : Journal of Automotive Engineering and Vocational Education Vol 3 No 1 (2022): 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.v3i1.40

Abstract

This study aims to determine how the effect of the implementation of Educational Field Practices (PLK) on readiness to become professional teachers. This research is included in quantitative research because this research uses a lot of numbers, starting from data collection, interpretation of the data, and the appearance of the results of this study which are manifested in numbers. The research was conducted in the Automotive Engineering Department, State University of Padang, with a population of 109 students of Automotive Engineering Education. The results showed that the correlation coefficient value (Rxy) was 0.935 and the determination coefficient value (R2xy) was 0.874 This indicates that there is a positive influence between Educational Field Practices and Readiness to Become Professional Teachers, which means that the longer Educational Field Practices are carried out. students, the higher the Readiness to Become a Professional Teacher. Penelitian ini bertujuan untuk mengetahui bagaimana pengaruh pelaksanaan Praktik Lapangan Kependidikan (PLK) terhadap kesiapan menjadi guru porfesional. Penelitian ini termasuk dalam penelitian kuantitatif karena penelitian ini banyak menggunakan angka-angka, mulai dari pengumpulan data, penafsiran terhadap data tersebut, serta penampilan dari hasil penelitian ini diwujudkan dalam angka. Penelitian dilaksanakan di Jurusan Teknik Otomotif Universitas Negeri Padang dengan Populasi penelitian sebanyak 109 mahasiswa Pendidikan Teknik Otomotif. Hasil penelitian menunjukkan bahwa nilai koefisien korelasi (Rxy) sebesar 0,935 dan nilai koefisien determinasi (R2x,y) sebesar 0,874 Hal ini menunjukkan bahwa terdapat pengaruh yang positif antara Praktik Lapangan Kependidikan dengan Kesiapan Menjadi Guru Profesional yang berarti bahwa semakin lama Praktik Lapangan Kependidikan yang dilakukan mahasiswa maka akan semakin tinggi Kesiapan Menjadi Guru Profesional.
Co-Authors Aditya Pratama Agus Baharudin Ahmad Juanda Al-Thoriq Viroza Alamsah Alfiza Candra Alhimni Rusydi Ambiyar, Ambiyar Ari Aryadi Arwizet Arwizet, Arwizet Azizul Amri Bahrul Amin Budi Utomo Wisesa Budi Waluyo Dani Harmanto Deded Purnama Dedi Mulyono Dedi Setiawan Diswanto Diswanto Doni Saputra Donny Fernandez Dori Yuvenda Dwi Sudarno Putra Erzeddin Alwi Fauzan Zaharbaini Fawwaz Naufal Fazrin Hidayat Firoj Mulani Giyano Lesmana Hamid Nasrullah Handini Novita Sari Hansi Effendi Hasan Maksum Hendra Dani Saputra I Gusti Bagus Wiksuana Ichsan Nasution Ilham Akbar Maulana Ilham Febriansyah Ilham Putra Chaniago Inna Kholidasari Intan Burtian Irma Yulia Basri Jerry Chih Tsong Su Jheri Hermanto Jodhi Ananda Prima Joumil Aidil Saifuddin Kathleen Ebora Padrigalan Krismadinata Krismadinata kustanrika, irma wirantina Lasyatta Syaifullah M Giatman M Nasir M. Abdi Rizal M. Sadly Firmansyah M. Yasep Setiawan M. Yasep Setiawan M.Riki Rinaldi M.Yasep Setiawan Martias Martias Masykur Masykur Milana Milana Muhammad Al Adaby Muhammad Febriyana Ilham Pratama Muhammad Latifur Rochman Muhammad Nasir Muhammad Yanda Muhammad Yasep Setiawan Mukhlidi Muskhir Muslim Muslim Mutia Ariska Putri Nanda, Iffarial Naufal Alifka Nizwardi Jalinus Nizwardi Zalinus Nurhasan Syah Nurindah Dwiyani Nurindah Dwiyani Nuzul Hidayat, Nuzul Osvaldo Adven Kurniawan Pinto Pratama Afosma Purwanto, Wawan Putra, Randi Purnama R Candra R. Chandra R. Chandra Refdinal, Refdinal Remon Lapisa Rifdarmon, Rifdarmon Riko Saputra Rino Kurniawan Riwayatul Ismi Rizki Alfarizi Rusdiman Salsabila Tri Rahmi Simatupang, Wakhinuddin Syalsa Billa Ahmad Toto Sugiarto Toto Sugiarto Toto Sugiarto Tung-Kwan Liu Wagino Wagino Wagino Wagino Wagino Wahyu Danang Veby Yansyah Wahyudi Pratama Wakhinuddin S Wanda Afnison Wanda Afnison Wendika Okvianda Whustha Khairul Yanda Septian Putra Yanto, Doni Tri Putra Yolana Nursyafti Yuke Permata Lisna Yuvani Oksarianti Zifa Oktavianza Zikri Fauzi