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Anda Iviana Juniani
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mein@ppns.ac.id
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Pusat Penelitian dan Pengabdian Masyarakat (P3M) Politeknik Perkapalan Negeri Surabaya Jalan Teknik Kimia, Kampus ITS, Sukolilo, Surabaya
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Mein: Journal of Mechanical, Electrical & Industrial Technology
Published by Politeknik Perkapalan Negeri Surabaya
ISSN : -     EISSN : 30477778     DOI : 10.35991
Core Subject : Science, Engineering,
Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering Physics Transportation
The Journal of Mechanical, Electrical and Industrial Technology (MEIN) aims to publish theoretical and empirical articles that are aimed to contrast and extend existing theories and build new theories that contribute to advancing our understanding of phenomena related to 3 (three) different fields. The contributions could employ explanatory and methodological approaches (primarily qualitative) or confirmatory (quantitative). Theoretical essays that enhance the building or extension of theoretical approaches are also welcome. MEIN selects the articles to be published with a bind, peer review system, following the practices of good scholarly journals. MEIN is published quarterly (online and printed) following an open-access policy. Online publishing enables more agile editing and review processes while lowering publishing expenses. MEIN defends that open-access publishing fosters the advancement of scientific knowledge, making it available to everyone. The journal is dedicated to various issues focusing on mechanical, electrical, and industrial technology.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 25 Documents
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Extruder Machine Design as a Facility for Utilization of High Density Polyethylene Waste into Plastic Panels Faruq, Habib Ngumar; Setiawan, Tri Andi; Juniani, Anda Iviana; Amin, Khoirul
MEIN : Journal of Mechanical, Electrical & Industrial Technology Vol. 2 No. 2 (2025): MEIN : Journal of Mechanical, Electrical & Industrial Technology
Publisher : P3M Politeknik Perkapalan Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35991/mein.v2i2.52

Abstract

Plastic waste is a persistent material that poses a serious environmental threat due to its resistance to natural decomposition. Indonesia generates approximately 27.3 million tons of waste annually, of which 19.8% is plastic, highlighting the urgent need for effective recycling strategies. This study aims to design and develop an extruder machine to recycle High-Density Polyethylene (HDPE) waste into value-added plastic panels. The research methodology comprised literature review, needs identification, concept design development using the Ulrich method, concept selection through the Analytical Hierarchy Process (AHP), fabrication, and machine performance testing. Concept 1 was selected as the best alternative among the three proposed design concepts, achieving the highest Alternative Weight Evaluation score of 35.14, compared to 34.65 for Concept 3. The fabricated machine measures 779.5 mm in length, 610 mm in width, and 689.3 mm in height, powered by a 1 HP electric motor and equipped with four 300 W heaters. Performance tests demonstrated that the machine successfully melted HDPE and produced plastic panels with uniform surfaces, good material density, and minimal voids, although the resulting color tended to be dark. The findings confirm that the developed extruder machine effectively supports HDPE recycling into functional products, contributing to waste reduction efforts and promoting sustainable plastic waste management technologies.
Single-phase Half-wave Uncontrolled Converter with A Single-phase AC Generator Moch Mukhtar Syaifudin; Dimas Eka Saputra; Nugraha, Anggara Trisna
MEIN : Journal of Mechanical, Electrical & Industrial Technology Vol. 2 No. 2 (2025): MEIN : Journal of Mechanical, Electrical & Industrial Technology
Publisher : P3M Politeknik Perkapalan Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35991/mein.v2i1.38

Abstract

This study aims to explore an electronic circuit that converts or rectifies alternating source voltage, commonly known as Alternating Current (AC), into unidirectional voltage, also referred to as Direct Current (DC), by using a diode as the main component in the circuit. The research is conducted using methods such as literature review, specific assessment, and direct observation. To present the research results, the author uses narration, images, tables, diagrams, and graphs. In this circuit, the diode acts as an uncontrolled rectifier, producing a half-wave signal with a single-phase AC generator as the source voltage. This setup is designed to improve the efficiency of electric power usage and extend the lifespan of the load, as the resulting voltage is more stable.
Moringa Olifera-Based Magnetic Biocoagulant Application to Mitigate Red Congo Parameters Ramadani, Tarikh Azis; Fatmawati, Meilinda Eka; Mayangsari, Novi Eka; Astuti, Ulvi Pri
MEIN : Journal of Mechanical, Electrical & Industrial Technology Vol. 2 No. 2 (2025): MEIN : Journal of Mechanical, Electrical & Industrial Technology
Publisher : P3M Politeknik Perkapalan Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35991/mein.v2i2.49

Abstract

The population growth rate has been demonstrated to have a direct impact on the increase in pollutant concentrations released into water bodies. One of the pollutants that has been identified in water bodies is congo red. This necessitates the implementation of effective management strategies to mitigate the adverse effects of pollutants. A methodology that has been demonstrated to be effective in mitigating the impact of congo red is the coagulation-flocculation process. The objective of this study is to employ biocoagulants and magnetic biocoagulants derived from moringa oleifera as mass separation agents to mitigate the adverse effects of congo red. The effectiveness of the mass separation agents was evaluated with varying initial concentrations of congo red. The augmentation of the initial congo red concentration yielded consistent results for both biocoagulants and magnetic biocoagulants. The highest results were obtained at an initial congo red concentration of 100 ppm, with a value of 97.34% for the magnetic coagulant. The coagulation-flocculation process can occur through several mechanisms, including charge neutralization, floc formation, and sedimentation.
Identifying Significant Predictors of Sick Building Syndrome in the Office Area of a Fabrication Company Wiediartini; Kharisma Innayatul Zulfa; Am Maisarah Disrinama
MEIN : Journal of Mechanical, Electrical & Industrial Technology Vol. 2 No. 2 (2025): MEIN : Journal of Mechanical, Electrical & Industrial Technology
Publisher : P3M Politeknik Perkapalan Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35991/mein.v2i2.53

Abstract

Introduction: Sick Building Syndrome (SBS) is a collection of symptoms or complaints experienced by occupants of modern buildings that are felt by a person when working or doing activities inside the building and disappear when leaving the building. This study was conducted on employees in the office area of a fabrication company. This study aims to determine what factors can influence the emergence of sick building syndrome complaints. Methods: This study used a quantitative approach by collecting data from SBS questionnaires, PSS-10 questionnaires for work stress, lighting measurements, and secondary data from companies from 70 employees. The effect was tested using binary logistic regression. The variables studied included work mass, smoking habits, lighting, and work stress. Results: The results of the SBS questionnaire showed that 70% of workers (49 people) experienced SBS symptoms, such as fatigue, drowsiness, and nasal congestion. The factors that influenced this study were smoking habits (p-value = 0.004), lighting (p-value = 0.026), and work stress (p-value = 0.003). Recommendations that can be implemented include adjusting the type of lighting, implementing standard operating procedures regarding smoking bans, implementing a peer support group smoking cessation program, and providing employee suggestion boxes. Conclusion: This study concludes that smoking habits, substandard lighting, and work stress significantly affect Sick Building Syndrome (SBS) symptoms among office workers at fabrication companies. Its implications point to the need for improvements in the work environment to create a healthy and productive workplace.
Optimization of Ergonomic and User-Safe Organic Waste Shredding Machine Design Using Quality Function Deployment (QFD) Rimantho, Dino
MEIN : Journal of Mechanical, Electrical & Industrial Technology Vol. 2 No. 2 (2025): MEIN : Journal of Mechanical, Electrical & Industrial Technology
Publisher : P3M Politeknik Perkapalan Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35991/mein.v2i2.55

Abstract

The increasing volume of waste in Indonesia, especially from households and traditional markets, necessitates innovative technological solutions for effective waste management. This study presents the development of an ergonomic organic waste shredding machine prototype, designed with a focus on safety and ease of use. By applying the Quality Function Deployment (QFD) method, user needs were translated into technical specifications using the House of Quality (HoQ). Primary data was collected through questionnaires, while anthropometric and design data were used to ensure ergonomic suitability. The results indicate that key user priorities include ease of cleaning, minimal noise, and ergonomic height. The design phase includes material selection, component acquisition, and prototype modeling. This innovation supports SDG 11: sustainable cities and communities, and SDG 12 responsible consumption and production

Page 3 of 3 | Total Record : 25

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