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Resy Kumala Sari
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resy.sari13@gmail.com
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resykumalasari@jes-tm.org
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LPPM Universitas Pahlawan Tuanku Tambusai Jalan Tuanku Tambusai 23 Bangkinang, Kampar, Riau, Indonesia Kode Pos: 28411
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Journal of Engineering Science and Technology Management
Published by Universitas Pahlawan Tuanku Tambusai
ISSN : -     EISSN : 28287886     DOI : 10.31004/jestm
Core Subject : Engineering,
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Electrical & Electronics Engineering
Journal of Engineering Science and Technology Management is Jurnal Electronic that aims at the publication and dissemination of original research articles on the latest developments in all fields of engineering science and technology, including; Industrial Engineering, Mechanical Engineering, Material Engineering, Electrical and Electronics Engineering, Environmental Engineering, Civil Engineering, Management, Science, and Technology. Journal of Engineering Science and Technology Management is a International peer-reviewed journal dedicated to interchange for the results of high-quality research in all aspects of education and teaching. The journal publishes state-of-art papers in fundamental theory, experiments, and simulation, as well as applications, with a systematic proposed method, good review of previous works, expanded discussion, and concise conclusion. As our commitment to advancing education and teaching, the Journal of Engineering Science and Technology Management follows the open access policy that allows the published articles to be freely available online without any subscription.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 164 Documents
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The Effectiveness of Long-Time Blanching on The Quality of Avocado Leaf Herbal Tea Added with Cinnamon Powder Ristia, Jeany; Hersamila, Riztiva; Efendi, Raswen; Dewi, Yossie Kharisma
Journal of Engineering Science and Technology Management (JES-TM) Vol. 5 No. 2 (2025): September 2025
Publisher : Journal of Engineering Science and Technology Management

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Abstract

Herbal tea is a beverage prepared from plant materials other than Camellia sinensis and has gained attention due to its functional properties. Avocado (Persea americana) leaves are a potential raw material for herbal tea because they contain bioactive compounds with antioxidant activity. This study evaluated the effect of blanching time on the quality of avocado (Persea americana) leaf herbal tea and determined the optimal treatment. A randomized controlled experiment was conducted using four blanching durations (0, 5, 10, and 15 min) with 16 experimental units. Moisture content, ash content, antioxidant activity, tannin content, and sensory acceptance were analyzed. Statistical analysis was performed using ANOVA followed by Duncan’s Multiple Range Test at a 5% significance level. Blanching time significantly affected the physicochemical and sensory properties of the herbal tea. The 15-minute blanching treatment produced the best quality, with moisture content of 4.11%, ash content of 6.46%, antioxidant activity of 41.66 ppm (very strong), and tannin content of 0.0121%. Sensory evaluation showed a yellow color, a slightly stale aroma, a non-bitter taste, and moderate overall acceptance. These results indicate that 15-minute blanching is optimal for producing high-quality avocado leaf herbal tea.
Industrial Environmental Health as an Effort to Prevent Environmental Impacts and Occupational Diseases Hardianti, Sri; Syifa Tanjung, Lailatul; Yusmita, Yesi; Irawan, Joni
Journal of Engineering Science and Technology Management (JES-TM) Vol. 5 No. 2 (2025): September 2025
Publisher : Journal of Engineering Science and Technology Management

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jestm.v5i2.363

Abstract

Industrial activities have the potential to generate negative impacts on the environment and human health if they are not properly managed. Industrial environmental health plays a crucial role in preventing environmental pollution and occupational health disorders through the control of environmental factors and the implementation of industrial hygiene. This study aims to analyze the role of industrial environmental health in preventing the impacts of environmental pollution and occupational health problems. The research employed a literature review method using a qualitative descriptive approach, drawing on various sources such as scientific journals, textbooks, and regulations related to industrial environmental health. The findings indicate that controlling air emissions, managing liquid and solid waste, and implementing proper industrial hygiene can significantly reduce the risks of environmental pollution and occupational diseases. The optimal implementation of industrial environmental health is therefore an important strategy to support environmental sustainability and protect workers’ health.
Facility Layout Redesign Using Systematic Layout Planning: A Case Study of a Vocational Motorcycle Workshop in Indonesia Yuanda, Rizwan; Fiatno, Aris; Gusman, Deddy; Tanjung, Lilatul Syifa; Musridho, R. Joko
Journal of Engineering Science and Technology Management (JES-TM) Vol. 4 No. 2 (2024): September 2024
Publisher : Journal of Engineering Science and Technology Management

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jestm.v4i2.370

Abstract

Efficient facility layout plays a critical role in improving operational performance, learning effectiveness, and occupational comfort in vocational education workshops. This study examines the redesign of a motorcycle engineering and business workshop at a public vocational high school in Indonesia using the Systematic Layout Planning (SLP) method. The existing layout exhibited inefficient material flow, excessive travel distances, and poor spatial organization, leading to fatigue among students and reduced instructional productivity. A qualitative descriptive case-study approach was employed, supported by direct observation, process mapping, and activity relationship analysis. The SLP procedure was applied through the development of Operation Process Charts, Activity Relationship Charts (ARC), Activity Relationship Diagrams (ARD), and block layout alternatives. The proposed layout demonstrates a substantial reduction in inter-facility travel distance and improved logical sequencing of learning activities. The findings confirm that SLP is an effective and adaptable approach for optimizing educational workshop layouts, contributing to improved operational efficiency and a safer, more conducive learning environment.
Analysis of Consumers’ Willingness to Pay for Ginger Sugar Herbal Drinks and Its Determining Factors Ainun Niha , Aevita; Rahmad, Nuraini
Journal of Engineering Science and Technology Management (JES-TM) Vol. 5 No. 2 (2025): September 2025
Publisher : Journal of Engineering Science and Technology Management

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jestm.v5i2.375

Abstract

Increasing competition in the herbal beverage industry has prompted MSMEs producing ginger sugar herbal beverages to improve product quality. The implementation of this measure is expected to increase production costs and selling prices, necessitating an analysis of consumer willingness to pay. This study aims to determine the price limit that consumers are willing to pay and the factors that influence Willingness to Pay. This study involved 100 respondents selected based on purposive sampling. The analysis methods used in this study include descriptive analysis, Contingent Valuation Method (CVM), and Logistic Regression. The results show that consumers are predominantly women, aged 17–35 years, employed as students, with a monthly income in the range of IDR 2,000,001 – IDR 4,000,000, a bachelor's degree or equivalent, a consumption pattern of 1–2 times per week, and a reason for consumption that is a healthy lifestyle. The maximum average Willingness to Pay value is IDR 19,305.56, which is 37.9% higher than the current price of IDR 14,000 per package. The analysis shows that consumer characteristics simultaneously have a significant effect on Willingness to Pay, with the dominant factors including gender, consumption pattern, and reason for consumption.
Size and Shape Distribution of Microplastics in PET Recycled Wastewater and Their Removal Behavior during the Coagulation–Flocculation Process Fadlilah, Lilya Irsianti; Ardeline, Mela; Lasmita, Revi
Journal of Engineering Science and Technology Management (JES-TM) Vol. 5 No. 2 (2025): September 2025
Publisher : Journal of Engineering Science and Technology Management

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Abstract

Plastic Recycling Facilities (PRFs), although intended to reduce plastic pollution, can act as potential sources of microplastic release due to mechanical processing activities. This study aims to investigate the size and shape distribution of microplastics in polyethylene terephthalate (PET) recycling wastewater and to evaluate their removal behavior through coagulation–flocculation processes. Wastewater samples were collected from several treatment stages of the wastewater treatment system at a PET recycling facility. The results indicate that microplastics are predominantly fragment-shaped, with medium-sized particles representing the most abundant fraction. Coagulation–flocculation was shown to effectively remove microplastics, particularly fragment-shaped and medium-sized particles, compared to film and fiber forms. Removal efficiency was influenced by microplastic size and shape characteristics. These findings suggest that coagulation–flocculation has strong potential as an effective method for controlling microplastic release from PET recycling wastewater and provides a basis for developing more targeted wastewater treatment strategies.
The Role of Material Flow Cost Accounting In Production Efficiency And Waste Reduction In Karya 27 Perabot Alyani Rahma Putri; Muthi Maitsa Zulfatri
Journal of Engineering Science and Technology Management (JES-TM) Vol. 5 No. 2 (2025): September 2025
Publisher : Journal of Engineering Science and Technology Management

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Abstract

This study aims to analyze the efficiency of the production process in micro, small, and medium enterprises (MSMEs) producing wooden furniture, with a case study of Karya 27 Perabot, which has been operating since 2019. To achieve this objective, this study adopted the Material Flow Cost Accounting (MFCA) approach, an environmental accounting method that allows for the measurement and assessment of costs associated with wasted materials and energy in the production flow. The main focus of this study is to identify and quantify losses in the form of wood, paint, and energy waste, as well as to analyze the potential for implementing Green Productivity (GP) to improve the efficiency and sustainability of the company's operations. The results show that 22.5% of total production costs consist of losses, with wood as the largest contributor (77.8%). Furthermore, the implementation of the Green Productivity (GP) strategy is predicted to significantly reduce losses, with potential cost savings reaching IDR 325,000 per batch, or approximately IDR 3.9 million per year. This study provides empirical insights into the application of MFCA in the context of furniture MSMEs and suggests strategic steps that can improve operational efficiency while supporting environmental sustainability goals in the small manufacturing industry sector.
Financial Management Application Design and DevelopmentAndroid Based (Case Study: Undergraduate Students of Pahlawan Tuanku Tambusai University) Maswir, Adam Winanda; Marwa, Safni; Setiawan, Beny
Journal of Engineering Science and Technology Management (JES-TM) Vol. 6 No. 1 (2026): Maret 2026
Publisher : Journal of Engineering Science and Technology Management

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Abstract

Personal financial management is a crucial aspect of maintaining financial stability, especially for students who often face financial constraints and difficulty recording daily transactions. This study aims to design and build anAndroid-based financial management application using the Flutter framework and Firebase as a database. The research method used was a prototype method, consisting of requirements gathering, system design, prototype creation, user evaluation, implementation, and testing. Data was obtained through interviews and observations with students at Pahlawan Tuanku Tambusai University, Bangkinang Kota District, Kampar Regency, Riau, many of whom still lack good financial record-keeping habits. The developed application provides features for recording income and expenses, budget planning, graphical financial reports, and fund allocation notifications. Black-box testing results indicate that the application meets user needs, is easy to use, and can help students track their finances more effectively and efficiently. Therefore, this application is expected to be a practical solution for improving financial literacy and student financial management habits.
Effectiveness of Health Education on the Behavioral Outcomes of Students at SMP IT Assajadah Tarbiyah Nurjanah; Rizta, Sri Utami
Journal of Engineering Science and Technology Management (JES-TM) Vol. 5 No. 2 (2025): September 2025
Publisher : Journal of Engineering Science and Technology Management

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jestm.v5i2.355

Abstract

This study examined the effectiveness of personal hygiene health education in improving students’ health knowledge and health-related behaviors at SMP IT As Sajadah. A quantitative pre-test–post-test experimental design was employed involving 60 students who participated in interactive personal hygiene education sessions incorporating lectures, discussions, and demonstrations. Data were collected using standardized questionnaires to assess health knowledge and health behaviors, complemented by systematic behavioral observations focusing on personal hygiene practices. Pre- and post-intervention differences were analyzed using paired t-tests. The results demonstrated a statistically significant increase in students’ health knowledge, with mean scores rising from 65.23 to 82.76 (p < 0.001). Observational findings revealed consistent positive behavioral changes, particularly in personal hygiene practices, including improved self-cleanliness, regular handwashing, healthier daily routines, and more disciplined use of school facilities. Behavioral score analysis further confirmed a significant effect of personal hygiene health education on students’ health-related behaviors (p < 0.05). These findings provide robust empirical evidence supporting the effectiveness of interactive, school-based personal hygiene health education in promoting positive behavioral outcomes. From a managerial perspective, the results offer practical guidance for school administrators, educators, and health program managers in evidence-based decision-making, program refinement, and strategic management of school-based personal hygiene education initiatives, particularly within Islamic educational contexts
Design and Construction of a Web-Based Sales Information System (Case study of a simple coffee shop business) Ariati, Mila; Rusnedy, Hidayati; Musridho, Joko
Journal of Engineering Science and Technology Management (JES-TM) Vol. 6 No. 1 (2026): Maret 2026
Publisher : Journal of Engineering Science and Technology Management

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Abstract

Sales transactions at Kedai Kopi Sederhana are still carried out manually through handwritten order records, cash payments, and daily sales reports without digital support. This manual process leads to several issues, including recording errors, inaccurate orders, data loss risks, and delays in generating sales reports. This study aims to design and develop a web-based sales information system to improve operational efficiency and data accuracy. The FAST (Framework for the Application of Systems Thinking) method was used, consisting of scope definition, problem analysis, requirements analysis, logical and physical design, system construction, and testing. The system was developed using PHP with the Laravel framework and MySQL database. The results show that the system successfully automates ordering, payment validation, menu management, and real-time sales reporting. Black Box testing indicates that all features function properly according to user requirements. Therefore, the system enhances business efficiency, reduces recording errors, and enables the business owner to monitor sales performance more effectively.
Community Empowerment Based on VCO Oil Production Training in Balamoa Village Taha, Nasim; Putri Damayanti, Adinda; Dewi, Karista; Syahbani, Nur Afni; Bakir, Fahmi
Journal of Engineering Science and Technology Management (JES-TM) Vol. 6 No. 1 (2026): Maret 2026
Publisher : Journal of Engineering Science and Technology Management

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Abstract

The community service program (KKN) of Alkhairaat University (Unisa) Group 131 in Balamoa Village, Dolo Barat District, Sigi Regency, Central Sulawesi, focuses on the production of Virgin Coconut Oil (VCO). This flagship program was held over two sessions on October 20 and 24, 2025. The activity aimed to enhance the knowledge and skills of local residents, particularly housewives, in processing coconuts into high-economic-value products. The program was implemented using a lecture and hands-on practice method. The results show high enthusiasm among participants and improved understanding of hygienic and marketable VCO production techniques. This activity has the potential to serve as the foundation for sustainable home-based businesses using local coconut resources

Page 13 of 17 | Total Record : 164

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