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All Journal J@TI (TEKNIK INDUSTRI) Jurnal Optimasi Sistem Industri Jurnal Ilmiah Teknik Industri Jurnal Teknik Industri: Jurnal Keilmuan dan Aplikasi Teknik Industri Jurnal Ergonomi dan K3 Journal of Research in Industrial Engineering and Management
Ari Widyanti
Staf Pengajar, Teknik Industri ITB, Bandung, Lab PSK&E ITB, Gedung Labtek III Lt.3, Ganesa 10 Bandung, 40132 Telp: 022-2508124, Fax: 022-2508124
Control & Systems Engineering Decision Sciences, Operations Research & Management Engineering Industrial & Manufacturing Engineering Mechanical Engineering Public Health Other

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Journal : Journal of Research in Industrial Engineering and Management

 1 
Evaluation of Student Mental Workload in Multicampus Lectures of Cirebon Industrial Engineering Block System Muslim, Yudisiasita; Widyanti, Ari
Journal of Research in Industrial Engineering and Management Vol 2 No 1 (2024): Mei 2024
Publisher : Program Studi Teknik Industri, Fakultas Teknologi Industri, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61221/jriem.v2i1.18

Abstract

The object of this research is the Industrial Engineering (IE) study program at Bandung Institute of Technology Cirebon Campus which runs block and non-block system lecture. The block system is a lecture by combining two to three class meeting of a course in one day while non-block system is a one time meeting in a week. Block system faced a lot of complained from students because the class were too hectic, the inability of students to receive a lot of quantitative material, and the monotony of the class. This study evaluates student’s mental workload by comparing the results of experimental measurements while attending block and non-block classes. Mental workload was measured with three measuring instruments, named NASA-TLX, Karolinska Sleepiness Scale (KSS), and Stroop test. Experimental results with 38 students concluded that there is actually no significant difference in mental workload between the two systems. Factors that could cause this results to happen include previous experience in block classes, non-optimal block system instructional learning time, mental fatigue in students, and decreased attention.
Proposed Design Improvements for Earplugs Considering the Factors Affecting Their Comfort Fatima Pulungan, Aqila; Widyanti, Ari
Journal of Research in Industrial Engineering and Management Vol 3 No 1 (2025): Mei 2025
Publisher : Program Studi Teknik Industri, Fakultas Teknologi Industri, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61221/jriem.v3i1.67

Abstract

The low compliance with earplug uses in Indonesian workplaces reflects suboptimal occupational safety and health (K3) implementation, particularly in protecting workers from noise exposure, with discomfort cited as a primary cause. This study investigates factors influencing earplug comfort and proposes user-oriented design improvements. Comfort was measured using the COmfort of hearing PROtection device (COPROD) questionnaire across four dimensions that include physical, functional, acoustic, and psychological, based on responses from 458 users. Data were analyzed using partial least squares structural equation modeling (PLS-SEM) and importance-performance map analysis (IPMA). Results show all four dimensions significantly affect overall comfort, with physical comfort emerging as the most critical yet underperforming factor, making it the primary target for enhancement. Functional comfort also demonstrated below-average performance but with lower relative importance, positioning it as a secondary priority. Key comfort attributes were then converted into functional and technical requirements, informing targeted design interventions to improve earplug performance and user acceptance.
Co-Authors Addie Johnson Airin Syafira Anandari Ramadhiar Priyandini Ardani, Mufid Dick de Waard Dwita Astari Pujiartati Fatima Pulungan, Aqila Herman Rahadian Soetisna Indryati Sunaryo Muslim, Yudisiasita Sutalaksana, Iftikar Z