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Journal of Engineering and Management in Industrial System
Published by Universitas Brawijaya
ISSN : 23383925     EISSN : 24776025     DOI : -
Core Subject : Engineering,
Industrial & Manufacturing Engineering
Journal of Engineering and Management in Industrial System is a peer reviewed journal. The journal publishes original papers at the forefront of industrial and system engineering research, covering theoretical modeling, inventory, logistics, optimizations methods, artificial intelligence, bioscience industry and their applications, etc.
Arjuna Subject : -
Articles 374 Documents
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DESIGN OF SMART URBAN FARMING BASED ON THE INTERNET OF THINGS USING RASPBERRY PI 4 TO SUPPORT THE REALIZATION OF FOOD SELF-SUFFICIENCY Lustyana, Astuteryanti Tri; Wahyudi, Slamet; Fanani, Angga Akbar
JEMIS (Journal of Engineering & Management in Industrial System) Vol. 14 No. 1 (2026)
Publisher : Industrial Engineering Department, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/

Abstract

Urban agriculture could be a response to limited land availability, access to food, and increasing need for local food production in highly populated cities. However, rooftop farming is subject to temperature differences, water limits, and limited operator supervision and needs constant monitoring. In this study, a pilot-scale smart urban farming system comprising a rooftop greenhouse, water recycling mechanism, drip irrigation, Raspberry Pi 4-based sensing and control, Firebase cloud database and Django online interface was constructed and evaluated. The system was put on the roof of Universitas Brawijaya, Industrial Engineering Building. Functional testing, sensor-to-cloud transmission, dashboard verification, and irrigation discharge measurements were used for performance evaluation. During a 24-h test with a sampling interval of 5 s, 15,443 of the 17,280 predicted records were successfully received, resulting to an upload success rate of 89.37%, a missing-data rate of 10.63% and an average interval of 5.59 s. Some 50,000 recordings were processed over the five-day monitoring period of the greenhouse. A five minute pump operation delivered roughly 32 mL per dripper, i.e. 0.1067 mL/s and the reaction delay between the first and the last dripper was between 20 and 26 seconds. The results indicate that the system can provide real-time monitoring and simple automation for small rooftop gardening.
ANALYZING LEAN WASTE DYNAMICS IN RESEARCH AND DESIGN DRIVEN ROBOTIC INDUSTRIES Satriyono, Raden Danang Aryo Putro; Faozi, Ekan; Fahmi, Afiqoh Akmalia; Wibowo, Ari Mukti
JEMIS (Journal of Engineering & Management in Industrial System) Vol. 14 No. 1 (2026)
Publisher : Industrial Engineering Department, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/

Abstract

The rapid growth of high‑tech manufacturing demands rigorous waste‑reduction strategies to sustain competitiveness. This research applies the Waste Assessment Model (WAM), a systematic tool for identifying and ranking the seven classic lean wastes, to PT Stechoq Robotika Indonesia, a research and development driven robotics firm. Using the three‑step WAM process (Seven Waste Relationship, Waste Relationship Matrix, and Waste Assessment Questionnaire), data were collected from production‑line operators and analyzed through matrix scoring and questionnaire weighting. Quantitative results reveal that Defect (19.9 %), Overproduction (17.1 %), and Process (17.1 %) are the most influential waste sources, while the WAQ highlights Motion (24.4 %), Transportation (22.4 %), and Process (17.1 %) as the dominant waste types to target. The study demonstrates that waste from defects, overproduction, and process steps significantly propagates secondary wastes, with inventory waste emerging as the most affected (17.8 %). These insights provide a data‑driven roadmap for lean‑focused interventions, aligning with broader industry practices on waste prioritization.
ASSOCIATION BETWEEN PERCEIVED OCCUPATIONAL SAFETY AND HEALTH IMPLEMENTATION AND PERCEIVED ACADEMIC FUNCTIONING AMONG INDUSTRIAL ENGINEERING STUDENTS: A CROSS-SECTIONAL STUDY Sudjono, Hary; Novareza, Oyong; Sholihah, Qomariyatus; Lukodono, Rio Prasetyo
JEMIS (Journal of Engineering & Management in Industrial System) Vol. 14 No. 1 (2026)
Publisher : Industrial Engineering Department, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/

Abstract

University learning environments include classrooms, laboratories, workshops, and field-based activities, making occupational safety and health (OSH) an important component of educational quality. This study examined the association between perceived OSH implementation and perceived academic functioning among industrial engineering students. A cross-sectional survey was conducted with 75 students from the 2023, 2024, and 2025 cohorts at Universitas Brawijaya, Indonesia. Before the main survey, a preliminary instrument test was conducted with 50 different respondents, with no overlap between the preliminary and main samples. The questionnaire assessed environmental safety and health, personal protective equipment availability, OSH supervision, OSH training, student safety awareness, emergency preparedness, and perceived academic functioning related to concentration, comfort, productivity, safety, and academic improvement. Internal consistency analysis, descriptive statistics, Pearson correlation, and ordinary least squares regression with heteroskedasticity-robust standard errors were applied. The instruments demonstrated high internal consistency across the assessed constructs. Perceived OSH implementation showed a strong positive association with perceived academic functioning, indicating that students who perceived better OSH implementation also tended to report better academic functioning. However, the strength of this relationship should be interpreted cautiously because both constructs were measured from the same respondents at the same time using the same response format, and some conceptual overlap exists between the measures. Discriminant validity between the composites was not established. Therefore, the findings support a strong association between broad perceptual constructs rather than a causal or clearly construct-distinct effect.
ERGONOMIC-BASED PORTABLE CHAIRLESS CHAIR DESIGN TO REDUCE THE RISK OF MUSCULOSKELETAL DISORDERS IN STANDING WORKERS Rozaqi, Alif Bakhrur; Abryandoko, Eko Wahyu; Farahdıansarı, Ardana Putrı
JEMIS (Journal of Engineering & Management in Industrial System) Vol. 14 No. 1 (2026)
Publisher : Industrial Engineering Department, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/

Abstract

Work-related Musculoskeletal Disorders (WMSDs) are musculoskeletal system disorders caused by unergonomic work activities and have a high prevalence in workers who stand for long periods. Static standing positions, repetitive movements, and the lack of ergonomic aids cause muscle fatigue and increase the risk of injury. One innovation to address this problem is the chairless chair, a portable sitting aid that allows workers to rest in a semi-sitting position without compromising mobility. This study aims to develop an ergonomics-based chairless chair design using the Rapid Upper Limb Assessment (RULA) and Pugh Concept Selection approaches. Initial evaluation of the working postures of 6 subjects showed that the majority of RULA scores were at high to very hight risk levels (scores 5–7). Based on the results of the user needs and work environment assessment, two alternative designs were developed and compared. Design A, which is ABS-based and features a lightweight telescopic feature, was selected as the best concept based on the Pugh evaluation score (score +7). The prototype of Design A was then produced and retested using the RULA method. The test results showed a significant decrease in all subjects' RULA scores, from an initial score of 5–7 to a final score of 3–4. This demonstrates the effectiveness of the chairless chair design in improving work posture and significantly reducing the risk of WMSDs. This research resulted in a practical, economical, and applicable ergonomic design for standing workers in the service sector, and can be further developed on an industrial scale.

Page 38 of 38 | Total Record : 374

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