Vol. 11 No. 2 (2026): In Progress

All articles in this issue, comprising 12 research articles, were authored/co-authored by 44 authors from two different countries (Indonesia and Nigeria) and 13 institutions. The authors from Indonesia represent East Java (2), Banten (3), Yogyakarta (1), Jakarta (22), West Java (4), and North Sumatra (2), while the authors from Nigeria represent Lagos (1) and Osun (9). An open-access version of the full issue can be downloaded here.

DOI: https://doi.org/10.21070/r.e.m.v11i2

Published: 2026-07-09

Articles

The Implementation of Industry 4.0 and Blockchain Technology in Improving the Efficiency and Transparency of Circular Supply Chains: A Study on the Manufacturing Industry Analisis Efisiensi Hasil dan Tingkat Kerugian dalam Rantai Pasokan Manufaktur Kayu Lapis Berbasis Industri 4.0

Lolyka Dewi Indrasari, Ana Komari

201-210
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Design and Experimental Evaluation of a Low-Power Organic Waste Shredder with Conveyor Feeding Mechanism

Wilarso Wilarso, Riyan Mardiyana

291-300
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Analysis of Thermal Effectiveness and Mass Flow Rate of Steam from Saturated to Superheater in Palm Oil Mill Analisis Efektivitas Thermal dan Laju Aliran Massa Steam dari Saturated Menuju Superheater di Pabrik Kelapa Sawit

Andhi Fuad Bawazir, Zulham Effendi

211-218
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Application of Linear Programming to Reduce Traffic Congestion in Urban Centers: A Case Study of Lagos State Transport Authority

Anthony Adekoya, Wasiu Adedeji, Seun Oyelami, Busayo Adeboye

219-226
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Thermo-hydraulic Performance of Double-cut and Perforated Twisted Tape Based on Constant Surface Area

Naufal Faizurrahman Siregar, Damora Rhakasywi, Nicky Yongkimandalan

227-238
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Finite Element Evaluation of Torsional Deformation and Stress Distribution in a Pump-Turbine Shaft System Evaluasi Elemen Hingga terhadap Deformasi Torsi dan Distribusi Tegangan pada Sistem Poros Pompa-Turbin

Rizki Sopandi, Adhita Prasetia, Udin Komarudin

239-252
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The Effect of Agitator Rotational Speed on Cooling Rate and Reynolds Number in a Block Ice Making Machine Using 20% NaCl Brine Pengaruh Kecepatan Putar Agitator terhadap Cooling Rate dan Reynolds Number pada Mesin Pembuat Es Balok Menggunakan Media Brine NaCl 20%

irfan ramadhan, Nia Nuraeni Suryaman, Arifin Santosa, Aep Saepudin

253-262
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Analysis of the Effect of Phase Change Material Mass Variation on the Performance of an Air-Cooled Photovoltaic-Thermal System Analisis Pengaruh Variasi Massa Phase Change Material terhadap Kinerja Sistem Photovoltaic Thermal Berbasis Pendingin Udara

Muhammad Alvan Fadillah, Udin Komarudin, Ahmad Rajani

263-270
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Erosion Behavior of Cr₃C₂-NiCr Coated GH4720Li Superalloy Under Different Impact Angles and Erodent Sizes: A Finite Element Analysis

Raffi Indrajati, Riki Hendra Purba, James Julian, Fitri Wahyuni, Elvi Armadani, Fathin Muhammad Mahdhudhu

271-280
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Energy Performance Analysis of the Crushing Area at PT. X Using Energy Performance Indicators (EnPI) Based on ISO 50001:2018 Analisis Kinerja Energi pada Area Crushing di PT. X Menggunakan Energy Performance Indicator (EnPI) Berdasarkan ISO 50001:2018

Arifia Ekayuliana, Andi Ulfiana, Carelita Maulidi Agnia, Asep Apriana, Ahmad Bustomi

281-290
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Expert System Application for Production Planning and Control Optimization in Jobshop Manufacturing: A Review for Developing Economies

Abiodun Gbemileke ABIOYE, Musibaudeen Olatunde IDRIS , Olakunle OLUKAYODE , Oriyomi O. ADETAYO, Abdulhafiz Ademola ADEFAJO , Babajide Joshua OJERINDE

301-316
Multi-Response Optimization of Mechanical Properties and Quantitative Porosity of A356 Aluminum Alloy Subjected to T6 Heat Treatment Using Response Surface Methodology Optimasi Multi-Respons Sifat Mekanik dan Porositas Kuantitatif Paduan Aluminium A356 pada Perlakuan Panas T6 Menggunakan Response Surface Methodology

Joni Arif, syaiful arif, Widarto, Ardian Maulana

317-326
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Design and Development of an ESP32-Based Single-Axis Solar Tracker for a Concentrated Solar Power Automation System Rancang Bangun Solar Tracker Single-Axis Berbasis ESP32 pada Sistem Otomasi Concentrated Solar Power

Muhammad Dzahabi, Perdana Putera, Rina Novita, Sri Aulia Novita

327-340
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Effects of Pyrolysis Fuel Blend, Ethanol-Pentanol Additives, and Injection Pressure Variations on Diesel Engine Performance Pengaruh Campuran Bahan Bakar Pirolisis, Aditif Etanol-Pentanol, dan Variasi Tekanan Injeksi terhadap Kinerja Mesin Diesel

Novi Indah Riani, Farid Majedi, Ismail Kholid, Kholis Nur Faizin, Bagas Fajar Prayoga

341-354
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Vol. 11 No. 2 (2026): In Progress

Articles

The Implementation of Industry 4.0 and Blockchain Technology in Improving the Efficiency and Transparency of Circular Supply Chains: A Study on the Manufacturing Industry Analisis Efisiensi Hasil dan Tingkat Kerugian dalam Rantai Pasokan Manufaktur Kayu Lapis Berbasis Industri 4.0

Design and Experimental Evaluation of a Low-Power Organic Waste Shredder with Conveyor Feeding Mechanism

Analysis of Thermal Effectiveness and Mass Flow Rate of Steam from Saturated to Superheater in Palm Oil Mill Analisis Efektivitas Thermal dan Laju Aliran Massa Steam dari Saturated Menuju Superheater di Pabrik Kelapa Sawit

Application of Linear Programming to Reduce Traffic Congestion in Urban Centers: A Case Study of Lagos State Transport Authority

Thermo-hydraulic Performance of Double-cut and Perforated Twisted Tape Based on Constant Surface Area

Finite Element Evaluation of Torsional Deformation and Stress Distribution in a Pump-Turbine Shaft System Evaluasi Elemen Hingga terhadap Deformasi Torsi dan Distribusi Tegangan pada Sistem Poros Pompa-Turbin

The Effect of Agitator Rotational Speed on Cooling Rate and Reynolds Number in a Block Ice Making Machine Using 20% NaCl Brine Pengaruh Kecepatan Putar Agitator terhadap Cooling Rate dan Reynolds Number pada Mesin Pembuat Es Balok Menggunakan Media Brine NaCl 20%

Analysis of the Effect of Phase Change Material Mass Variation on the Performance of an Air-Cooled Photovoltaic-Thermal System Analisis Pengaruh Variasi Massa Phase Change Material terhadap Kinerja Sistem Photovoltaic Thermal Berbasis Pendingin Udara

Erosion Behavior of Cr₃C₂-NiCr Coated GH4720Li Superalloy Under Different Impact Angles and Erodent Sizes: A Finite Element Analysis

Energy Performance Analysis of the Crushing Area at PT. X Using Energy Performance Indicators (EnPI) Based on ISO 50001:2018 Analisis Kinerja Energi pada Area Crushing di PT. X Menggunakan Energy Performance Indicator (EnPI) Berdasarkan ISO 50001:2018

Expert System Application for Production Planning and Control Optimization in Jobshop Manufacturing: A Review for Developing Economies

Design and Development of an ESP32-Based Single-Axis Solar Tracker for a Concentrated Solar Power Automation System Rancang Bangun Solar Tracker Single-Axis Berbasis ESP32 pada Sistem Otomasi Concentrated Solar Power

Effects of Pyrolysis Fuel Blend, Ethanol-Pentanol Additives, and Injection Pressure Variations on Diesel Engine Performance Pengaruh Campuran Bahan Bakar Pirolisis, Aditif Etanol-Pentanol, dan Variasi Tekanan Injeksi terhadap Kinerja Mesin Diesel

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