Article Per Year (5 Year)
p-Index From 2021 - 2026
1.8
P-Index
This Author published in this journals
All Journal Jurnal Pendidikan Vokasi Cakrawala Pendidikan JPTK: Jurnal Pendidikan Teknologi dan Kejuruan Journal of Education and Learning (EduLearn) Journal of Educational Science and Technology JURNAL DINAMIKA VOKASIONAL TEKNIK MESIN Mimbar Ilmu VOX EDUKASI: Jurnal Ilmiah Ilmu Pendidikan Journal of Applied Engineering and Technological Science (JAETS) Automotive Experiences Journal of Applied Mechanical Engineering Innovation
Thomas Sukardi
Fakultas Teknik Universitas Negeri Yogyakarta
Aerospace Engineering Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Social Sciences Other

Published : 26 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 26 Documents
Search

 1   2   3 
Students' readiness in following online learning during the Covid-19 pandemic Wakijah, Siti; Sukardi, Thomas; Sudira, Putu; Pramu, Pramu; Iskandar, Ranu; Haq, Rijalul
Jurnal Pendidikan Vokasi Vol. 13 No. 1 (2023): February
Publisher : ADGVI & Graduate School of Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jpv.v13i1.52030

Abstract

The Covid-19 pandemic has impacted various sectors, including the education sector. This study aimed to determine Polbangtan YoMa students' readiness to follow online learning during the Covid-19 pandemic. This research is survey research. The subjects of this study were 158 Polbangtan YoMa students. The instrument used for data collection was a questionnaire. Data were analyzed using descriptive statistics. This study results are: (1) the aspects of facilities and infrastructure get the percentage of 66%, meaning that Polbangtan YoMa students are ready to follow the learning from the aspect of  facilities and infrastructure; (2) the technological literacy aspect gets the percentage of 65%; meaning the Polbangtan YoMa students are ready to follow the learning from the aspect of their technological literacy abilities; (3) the quality aspect of online interactions gets the percentage 35%; meaning that Polbangtan YoMa students are not ready to take part in learning from the aspect of online interaction quality capabilities; (4) aspects of the benefits of online learning get the average sroce percentage of 52%, meaning that Polbangtan YoMa students agree that online learning will be helpful; (5) aspects of assistance services get the percentage of 67%, meaning that Polbangtan YoMa students entirely agree that assistance services help in online learning; and (6) aspects of online learning prospects get the average score percentage of 57%, meaning that Polbangtan YoMa students somewhat agree that online learning provides online learning prospects, thus Polbangtan YoMa students are ready to do online learning with an average proportion of 57%. The online learning model used at Polbangtan YoMa is asynchronous learning using e-learning, WhatsApp, and Google Classroom.
Developing Industry-Relevant Soft Skills Through Peer-Engaged Project Approach (PePA): A Vocational Education Perspective Prasetya, Tri Adi; Munadi, Sudji; Sukardi, Thomas; Setiyawan , Andri
Journal of Applied Engineering and Technological Science (JAETS) Vol. 7 No. 1 (2025): 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.v7i1.7146

Abstract

The development of soft skills remains a critical challenge in vocational education, as the curriculum often prioritises technical competencies while neglecting systematic integration of interpersonal skills. This study aims to develop and evaluate the Peer-Engaged Project Application Model (PePA), a project-based learning framework designed to enhance communication, teamwork, and problem-solving through structured peer engagement. Employing a Research and Development (R&D) approach based on the ADDIE model, the research was conducted in the D4 Mechanical Engineering Program at Yogyakarta State University. The PePA model was tested on a group of 15 students in the Fabrication Construction Practices course. Data were collected through Likert-scale questionnaires, structured observations, and semi-structured interviews, and analysed using descriptive and inferential statistics, along with qualitative techniques. The implementation of PePA resulted in improved performance in soft skills, with average scores increasing from 3.03 to 3.65 (communication), 3.20 to 3.78 (teamwork), and 3.13 to 3.70 (problem-solving). The model was also rated as “very valid” by expert evaluators, with an average validation score ranging from 3.58 to 3.85. These findings suggest that PePA is a feasible and effective learning model for strengthening vocational students' soft skills in alignment with industry expectations. The model has potential applicability beyond engineering education and supports policy recommendations for integrating soft skills into vocational curricula.
Human-related barriers to low involvement in continuous improvement initiatives: Phenomenological study in manufacturing workers in Indonesia Wibowo, Aris Eko; Sukardi, Thomas; Widarto
Jurnal Pendidikan Vokasi Vol. 15 No. 3 (2025): November
Publisher : ADGVI & Graduate School of Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jpv.v15i3.91289

Abstract

Continuous Improvement (CI) has become a critical management philosophy for achieving sustainable competitiveness in manufacturing industries. However, despite its widespread adoption, many CI initiatives fail due to human‐related barriers that hinder implementation at the organizational level. This study aims to identify and analyze the key human factors that impede CI implementation in Indonesian manufacturing industries and to explore strategies for overcoming these challenges. Using a qualitative exploratory design, data were collected through in-depth interviews with 15 manufacturing practitioners and analyzed using thematic analysis. The findings reveal seven major human-related inhibitors to successful CI implementation: complacency, misperception, irritability, individualism, work rigidity, frustration, and stress.  Collectively, these factors erode motivation, weaken collaborative capabilities, and intensify resistance to organizational change, which in turn restricts organizational learning and performance enhancement. The results corroborate existing literature emphasizing the significance of human and cultural aspects in sustaining CI initiatives. To address these barriers, the study highlights the importance of fostering a supportive organizational culture that promotes psychological safety, teamwork, and incremental learning through the Kaizen philosophy. Management interventions should focus on strengthening human engagement, realistic goal setting, and reward mechanisms that value collective effort and continuous learning.This study contributes to the growing body of knowledge on CI by providing an in-depth understanding of the human dimension of continuous improvement in developing-country manufacturing contexts. The findings offer both theoretical enrichment and practical guidance for leaders seeking to cultivate sustainable CI cultures driven by people rather than processes.
Optimization of The E-Inobus Battery Pack Cooling System Design Using The Computational Fluid Dynamic Method To Overcome Condensation Rizky Arya Saputra; Thomas Sukardi; Fredy Surahmanto
Journal of Applied Mechanical Engineering Innovation Volume 01, No. 02 October 2025
Publisher : Program Studi Sarjana Terapan Teknik Mesin, Fakultas Vokasi, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jamei.v1i2.3002

Abstract

The use of battery packs as a source of electrical energy on E-Inobus requires a cooling system, the goal is to maintain battery pack performance in optimal conditions. In its application, there are problems due to the use of a cooling system which causes an increase in air humidity inside the battery box resulting in condensation. Therefore, this study aims to obtain a design for optimizing the cooling system battery pack. This study uses the R&D method which refers to the 4D model. The subject of this research is the E-Inobus cooling system battery pack. The object of research is the development of a cooling system battery pack design to prevent condensation. Data collection was carried out to obtain data from testing the cooling system battery pack design using the Computational Fluid Dynamic (CFD) testing method to be used as input parameters in testing the cooling system battery pack optimization design. The results of the battery pack testing and the optimization of the battery pack cooling system design will later be used as control set points in the reconditioned box design. The results of this study are in the form of a reconditioned box design that has a control system. The control system is used to control air velocity and pressure, the purpose of which is to prevent condensation and to maintain fluid temperature and pressure in a balanced condition
Lean Manufacturing and Manufacturing Cycle Effectiveness Analysis of the Fabrication Process for the PT Pou Yuen Workshop Construction Zahid Karim Hanifan; Thomas Sukardi
Journal of Applied Mechanical Engineering Innovation Volume 01, No. 02 October 2025
Publisher : Program Studi Sarjana Terapan Teknik Mesin, Fakultas Vokasi, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jamei.v1i2.3010

Abstract

This study aims to increase production effectiveness in the fabrication process for the PT Pou Yuen Indonesia workshop construction by applying Lean Manufacturing and Manufacturing Cycle Effectiveness (MCE). The research used a quantitative descriptive method by taking representative samples from the overall production process in the cutting, setting, and submerged arc welding (SAW) lines. Data were collected through interviews, observation, documentation, and measurements of process time and transfer distance. The results show that the most effective cutting method is the method used by MSS, which applies a double-nozzle cutting process. In the setting process, the most effective methods are those used by MKR and MSS because they require fewer workers and have shorter process times than SST. In the welding process, the most effective method is the method used by MKR because flux is supplied during the welding process. Several types of waste were identified, including waiting time, transportation waste, inventory waste, motion waste, and processing waste. Applying the recommended process methods can reduce the total production process time by 9,011.99 seconds for one WF beam and reduce transfer distance by 2,070 m.
Performance and Emission Characteristics Using Dual Injection System of Gasoline and Ethanol Bambang Sulistyo; Herminarto Sofyan; Thomas Sukardi; Agus Widyianto
Automotive Experiences Vol. 6 No. 2 (2023)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ae.8070

Abstract

This study successfully investigated the engine performance and emission characteristics of a dual injection system that uses both gasoline and ethanol fuels. The study utilized a microcontroller-based control system (PGM-FI) to substitute ethanol fuel injection for gasoline injection. Ethanol fuel was injected at the inlet with three different pressures: 1.0 bar, 1.2 bar, and 1.4 bar, while gasoline injector pressure was fixed at 2 bar. Results showed that substituting ethanol injection with a pressure of 1 bar resulted in a slight decrease in torque and power, but it was the best compared to the other pressures tested. The study found that the use of ethanol injection resulted in improved fuel economy at an ethanol injector pressure of 1 bar with a reduction in SFC of 8.89%. Exhaust emissions were also reduced, with a maximum reduction in CO emissions of 42.54% occurring at a pressure of 1 bar. Similarly, the lowest HC content in exhaust gas was observed at a pressure of 1 bar, which was reduced by 44.48%. However, the results highlighted that ethanol injection pressure could significantly reduce fuel consumption for case A-04 and increase the air-fuel ratio.
Co-Authors Afri Yudantoko Agus Widyianto ALDO, JEFRI Antonius Edy Setyawan Aprilia Yustina Arief Alfiyanto, Muhamad Aris Eko Wibowo Bambang Sudarsono Bambang Sulistyo Bayu Gilang Purnomo Bayu Rahmat Setiadi Chytra Mahanani Edy Supriyadi Fredy Surahmanto Galih Rakasiwi, Putra HAQ, RIJALUL Herminarto Sofyan Iskandar, Ranu Istanto Wahyu Djatmiko Lilik Chaerul Yuswono Listiani, Sri Muhammad Agung Widodo, Muhammad Agung MUHAMMAD INDRA Pramu Pramu Puji Dwi Utomo Purwanto Purwanto Putri Wulan Juliana Putu Sudira Putut Hargiyarto Ridwan Oktavian Hananta Rizki Kurniawan Rizky Arya Saputra Setiyawan , Andri Sri Astuti Sri Waluyanti Sudji Munadi Tri Adi Prasetya Urip Wahyuningsih Wakijah, Siti Widarto Widarto Zahid Karim Hanifan