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All Journal International Journal of Robotics and Control Systems Engineering Science Letter Bincang Sains dan Teknologi Buletin Edukasi Indonesia International Journal of Essential Competencies in Education Computer & Science Industrial Engineering Journal Spektrum Industri
Ihwan Ghazali
Centre for Product Design and Manufacturing, Department of Engineering Design and Manufacture, Faculty of Engineering, University of Malaya, Kuala Lumpur, Malaysia
Humanities Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Transportation Other

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The Mental Workload Analysis on Female Educators During Covid-19 Pandemic Using Nasa-TLX Method Andivas, Marulan; Harits, Dimaz; Wibowo, Agus Hindarto; Thoriq, Eaden Ahmed; Ghazali, Ihwan
Spektrum Industri Vol. 21 No. 1 (2023): Spektrum Industri - April 2023
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/si.v21i1.87

Abstract

The fate of women workers during the pandemic is quite worrying. The role of women's triple burden in these times is getting heavier. Mental workload is a multidimensional construct that demands attention, performance, and skills of workers according to their work environment. This study aims to find out the mental burden felt by female workers during the pandemic. The subjects of this study were female educators at the University of Balikpapan. Five subjects feel a Very high mental burden on work activities during a pandemic, namely subjects 06, 14, 19, 23, and 25. There are 18 subjects who feel a high mental burden including subjects 3, 4, 5, 7, 8, 10, 12, 13, 16, 17, 18, 20, 21, 26, 28, 29, 30, and 31. Then, 3 subjects felt a moderate mental load, and 2 subjects felt a low mental load. If average, then the mental workload of female educators at the University of Balikpapan is 56.623 categorized as high. This study also seeks to investigate the correlation between the perceived workload of the subjects and several factors including age, marital status, education level, address, family size, income, COVID-19 survivor status, and family members who are COVID-19 survivors. The result showed that the number of family members is the only significant factor that influences the mental workload.
Development and Evaluation of a Laminated Bamboo Frame for Electric Scooters: A Preliminary Prototype Herawan, Safarudin Gazali; Martalogawa, Ismail Azizi; Saputra, Azqy Nur Farenzy; Moenartioso, Ahmad Hanif; Ghazali, Ihwan
Engineering Science Letter Vol. 4 No. 03 (2025): Article in Press - Engineering Science Letter
Publisher : The Indonesian Institute of Science and Technology Research

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56741/IISTR.esl.001314

Abstract

This study presents the design, fabrication, and evaluation of a hybrid electric scooter frame constructed from laminated Gombong bamboo and aluminium. The objective was to address environmental concerns in personal mobility by reducing reliance on high-carbon materials and improving battery safety. A CAD-based design was executed in Autodesk Inventor using bamboo beams for primary structure and aluminium joints for mechanical stability. Laminated bamboo was processed through drying, chemical treatment, and gluing. Mechanical properties were evaluated via tensile and compressive tests, achieving a tensile strength of 289 MPa. A 72V lithium-ion battery pack composed of 18650 cells was assembled with BMS integration. The resulting prototype exhibited a total frame weight of 4.8 kg and a 30 km range per charge. The integration of laminated bamboo with aluminum joints provides preliminary evidence of feasibility and highlights bamboo’s potential as a renewable material for lightweight mobility applications. These results provide an initial prototype-level demonstration of laminated bamboo as a viable material for sustainable transport applications.
Exploring Students’ Critical Thinking and Curiosity: A Study on Problem-Based Learning with Character Development and Naturalist Intelligence Suhirman, Suhirman; Ghazali, Ihwan
International Journal of Essential Competencies in Education Vol. 1 No. 2 (2022): December
Publisher : Lembaga Penelitian dan Pemberdayaan Masyarakat (LITPAM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/ijece.v1i2.1317

Abstract

This study aimed to investigate the impact of problem-based learning with a focus on character development and naturalist intelligence on critical thinking (CT) abilities and curiosity of students. The study was conducted in a school in the city of Mataram - Indonesia, utilizing a 3x2 treatment by level design. Two groups of students, categorized as having high or low naturalist intelligence, were exposed to three different treatments: problem-based learning with character development (PBL-CD), problem-based learning, and regular learning. Data regarding the students' naturalist intelligence and CT abilities were collected through tests, while information on their curiosity was obtained through observation sheets and self-assessment. Statistical analysis using MANOVA at a significance level of 0.05 was performed. The findings revealed that: (a) PBL-CD had a positive impact on students' CT abilities and curiosity; (b) the naturalist intelligence did not significantly influence students' CT abilities and curiosity; and (c) there was no significant impact observed on students' CT abilities and curiosity when examining the interaction between PBL-CD and naturalist intelligence. Thus, PBL-CD presents itself as a viable strategy to cultivate students' critical thinking skills and inquisitiveness, offering an alternative pathway in routine learning in the classroom.
Co-Authors Abdullah Ali Agus Hindarto Wibowo Amiri, Mohammad Soleimani Andivas, Marulan Asih, Hayati Mukti Astuti, Fatma Hermining Balogun, Shuaibu Alani Chau, Than Didik Suhariyanto Dwi Aryanti Firman, La Ode Mohammad Harits, Dimaz I Wayan Santyasa Kurnia, Mega Tri Ly, Hung Martalogawa, Ismail Azizi Maslan, Andi Moenartioso, Ahmad Hanif Mohamad, Effendi Mohammad, Effendi Bin Nguyen, Duy Nguyen, Huong Nguyen, Huu-Tho Nguyen, Thi Thao Uyen Nguyen, Tho Nguyen, Vu Anh Duy Ridwan Usman Safarudin Gazali Herawan Sakundarini, Novita Saputra, Azqy Nur Farenzy Semiun, Nasri Solikhah, EfA Wakhidatus Sri Mumpuni Ngesti Rahaju SUHIRMAN SUHIRMAN Syamsu Marlin Thoriq, Eaden Ahmed Tia Tanjung, Tia