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Resy Kumala Sari
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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 123 Documents
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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

Show Abstract | Download Original | Original Source | Check in Google Scholar

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

Show Abstract | Download Original | Original Source | Check in Google Scholar

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.

Page 13 of 13 | Total Record : 123

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