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All Journal Jurnal Pendidikan Vokasi VANOS Journal of Mechanical Engineering Education International Journal of Engineering, Science and Information Technology
Muhammad Nurtanto
Universitas Negeri Jakarta
Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Transportation

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Parallel Hybrid Powertrain Design for Honda BeAT 110 eSP Scooter to Improve Energy Efficiency and Reduce Emissions Virgawan Adrian Noes; Muhammad Hamid Ramdhan Nur; Muhammad Nurtanto
VANOS Journal of Mechanical Engineering Education Vol 11, No 1 (2026)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/vanos.v11i1.35619

Abstract

The increasing demand for energy efficiency and emission reduction in urban transportation requires innovative powertrain solutions. This study aims to design and analyze a parallel hybrid powertrain system for the Honda BeAT 110 eSP Scooter. The methodology involves integrating a 3000W BLDC Hub motor on a custom-made 6mm steel bracket arm, coupled with a 60V 27Ah lithium battery, without altering the main frame structure. Performance testing was conducted using a chassis dynamometer and on-road testing to measure fuel consumption, torque, and emissions. The results demonstrate that the hybrid system significantly improves vehicle performance. Fuel efficiency increased to 92 km per charge/refuel combination (compared to 38 km in standard mode). The electric motor produced a peak torque of 81.93 Nm, which is three times higher than the conventional engine's torque of 25.48 Nm. Furthermore, exhaust emissions (CO and HC) were reduced to 0% when operating in electric mode. Despite a 24 kg weight increase, the center of gravity shift remained within safe limits. This research concludes that a modular parallel hybrid system is a viable and efficient solution for urban scooters.
Determinant Factors Influencing Entrepreneurial Interest among Vocational School Students in Electronics Engineering Hartati Hartati; Edy Supriyadi; Dedi Setiawan; Mustofa Abi Hamid; Muhammad Nurtanto; Muhammad Hakiki
International Journal of Engineering, Science and Information Technology Vol 5, No 4 (2025)
Publisher : Malikussaleh University, Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52088/ijesty.v5i4.1504

Abstract

This research investigates the various factors that affect entrepreneurial interest among vocational secondary school students enrolled in the electronics engineering program in Yogyakarta, Indonesia. The study identifies entrepreneurship as a crucial mechanism for fostering innovation, self-employment, and enhancing national competitiveness. It examines five primary determinants: self-efficacy, family support, entrepreneurial attitude, entrepreneurship education, and social and institutional support. A quantitative ex post facto methodology was utilized, involving 104 respondents chosen through proportional random sampling from three vocational institutions.  Data collection employed a validated four-point Likert scale questionnaire, with analysis conducted via simple and multiple linear regression techniques utilizing SPSS. The findings indicate that all five variables have significant and positive impacts on students' entrepreneurial interest, both independently and in combination. Entrepreneurship education and social–institutional support exhibit the most significant impact, underscoring the critical role of practical learning, mentorship, and supportive ecosystems in shaping entrepreneurial trajectories.  Self-efficacy and family support enhance motivation and confidence, while positive entrepreneurial attitudes promote perseverance and proactive engagement in opportunity recognition. These factors account for nearly half of the variance in entrepreneurial interest, thereby affirming the significance of the Theory of Planned Behavior and Social Cognitive Theory within vocational contexts. This study empirically enhances the discourse on entrepreneurship in technical and vocational education by highlighting the combined influence of psychological, familial, educational, and structural supports on the development of entrepreneurial intentions. Policy implications indicate that promoting entrepreneurship necessitates the alignment of curricular design, family involvement, and institutional policies to enhance entrepreneurial ecosystems within vocational education. Vocational schools can enhance student empowerment by fostering self-efficacy and offering accessible institutional resources, enabling the translation of entrepreneurial aspirations into sustainable ventures.
Development of Application-Based Interactive Learning Media in Automotive Engineering Choyrul Anwar; Andi Maga Umara; Muhammad Nurtanto; Valiant Lukad Perdana Sutrisno; Fadly Nendra; Rusdi Febriyanto
International Journal of Engineering, Science and Information Technology Vol 5, No 4 (2025)
Publisher : Malikussaleh University, Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52088/ijesty.v5i4.1538

Abstract

Learning media significantly impacts the effectiveness of the learning process. The automotive industry is experiencing rapid development, resulting in a high demand for technicians with expertise in the automotive field. The purpose of this study was to test the development of Smart Apps Creator (SAC) to create interactive learning resources for Engine Management Systems (EMS). This research and development (RD) project used the ADDIE development approach. Five subject matter experts and five media specialists comprised an expert assessment group that validated and evaluated the media to ensure its feasibility. In addition, 62 students reviewed the learning materials as users of the application. The media specialists' evaluation of the feasibility of the learning media construction resulted in a score of 4.02, which is considered practical. The subject matter experts' evaluation of the feasibility of the learning media material resulted in a score of 4.15, which is considered practical. The students' evaluation of the acceptance of the learning media as users resulted in a score of 4.07, which is classified as practical. Meanwhile, the application implementation in the learning process proved to increase learning success among students who used the program development. All things considered, the findings of this study can be used as evidence that application-based learning materials are worthy of widespread use, which will further improve teaching standards. Furthermore, vocational teachers must innovate in developing learning media by utilizing and integrating technology into the process. The creation of such media is necessary in the 21st century to provide easily accessible and understandable learning materials so that students can effectively absorb the information.
A Structural Model of Vocational Pre-Service Teachers’ Quality via Tamansiswa Values, Motivation, and Transformational Leadership: PLS-SEM Approach Rabiman Rabiman; Farid Mutohhari; Muhammad Nurtanto; Nurcholish Arifin Handoyono; Ibrahim Haruna Bako
Jurnal Pendidikan Vokasi Vol. 16 No. 1 (2026)
Publisher : ADGVI & Graduate School of Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jpv.v16i1.90561

Abstract

Improving the teaching quality of vocational pre-service teachers requires integrative strategies that combine cultural values, motivation, and leadership development. This study examines the direct and indirect effects of Tamansiswa teaching values and motivation on teaching quality, with transformational leadership as a mediating variable. A quantitative longitudinal ex post facto design was employed. Data were collected from 697 vocational pre-service teachers in Yogyakarta, Indonesia, using structured questionnaires measuring Tamansiswa teaching values, motivation, transformational leadership, and teaching quality through validated Likert-scale instruments. Data were analyzed using Partial Least Squares–Structural Equation Modeling (PLS-SEM) to test measurement reliability, structural relationships, and mediation effects. The results indicate that motivation is the strongest predictor of teaching quality (β = 0.880), followed by transformational leadership (β = 0.238), while Tamansiswa teaching values show a smaller but significant direct effect (β = 0.088). Both Tamansiswa teaching values (β = 0.287) and motivation (β = 0.399) significantly enhance transformational leadership. Mediation analysis confirms that transformational leadership strengthens the effects of Tamansiswa teaching values and motivation on teaching quality. The structural model demonstrates good fit (SRMR = 0.056; NFI = 0.926). These findings position transformational leadership as a key mechanism through which indigenous values and motivation are translated into effective teaching practices. The study contributes to vocational teacher education by integrating culturally grounded values into a leadership-mediated model of teaching quality and recommends embedding value internalization, motivational support, and leadership development within pre-service teacher preparation programs.
Co-Authors Andi Maga Umara Choyrul Anwar Dedi Setiawan Edy Supriyadi Fadly Nendra Hakiki, Muhammad Hartati Hartati Ibrahim Haruna Bako Muhammad Hamid Ramdhan Nur Mustofa Abi Hamid Mutohhari, Farid Nurcholish Arifin Handoyono Rabiman, Rabiman Rusdi Febriyanto Valiant Lukad Perdana Sutrisno Virgawan Adrian Noes