Vol. 30 No. 8 (2026): Regular Issue

Engineering Journal
Volume 30 Number 8
ISSN: 0125-8281
DOI: 10.4186/ej.2026.30.8

Published: 2026-08-31

Environment, Energy and Natural Resources

Environment, Energy and Natural Resources

VUF-Aware Dynamic Operating Envelopes with Coordinated DERs Dispatch and Phase Swapping

Nattanapong Kongtrakul, Soamsiri Chantaraskul, Wijarn Wangdee
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DOI10.4186/ej.2026.30.8.1 August 2026
115 60
Environment, Energy and Natural Resources

VFD-Based Frequency Regulation and Surplus Utilization Framework for Standalone Micro-Hydro Power Plants

Muhammad Usman Raza, Muhammad Irfan Abid, Wanchalerm Pora, Muhammad Omer Khan, Muhammad Akmal, Napong Panitantum
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DOI10.4186/ej.2026.30.8.19 August 2026
103 55
Environment, Energy and Natural Resources

Modeling and Experimental Validation of R410A Condensing Flow in a 1.5-Ton Split Vapor Compression Refrigeration Unit

Veyan A. Musa, Omar M. Ali, Raid A. Mahmood
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DOI10.4186/ej.2026.30.8.31 August 2026
56 38

Modern Engineering Technology

Modern Engineering Technology

Using Output-Feedback Disturbance Observer to Enhance Disturbance Suppression of PID Controllers for DC-Motor Trajectory Tracking Systems

Pinit Ngamsom
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DOI10.4186/ej.2026.30.8.47 August 2026
44 31
Modern Engineering Technology

Diophantine Spectral Control for Nonlinear Internal Resonance Suppression

Pakpong Jantapremjit
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DOI10.4186/ej.2026.30.8.67 August 2026
44 25
Modern Engineering Technology

Solution-Based Fertilizer Detection Using Guided-Mode Resonance Optical Sensors: A Comparative Study with a Commercial Multispectral Sensor

Nur Aina’a Mardhiah Zainuddin, Antonin Laforgue, Sakoolkan Boonruang, Waleed Soliman Mohammed, Romuald Jolivot
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DOI10.4186/ej.2026.30.8.81 August 2026
62 29
Modern Engineering Technology

Optimization of Mechanical and Durability Performance of Bacterial Concrete Using Taguchi Method

Shradha Jena, Bidyadhar Basa, Kishor Chandra Panda
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DOI10.4186/ej.2026.30.8.103 August 2026
60 33
Modern Engineering Technology

Engineering Properties of Conventional Concrete Incorporating Different Amounts of Dry Ice

Quoc Nhat Pham, Van Mien Tran, Tuan Khai Nguyen, Trung Nam Huynh
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DOI10.4186/ej.2026.30.8.119 August 2026
57 37
Modern Engineering Technology

Effect of Printing Speed and Core Relative Density on the Mass-Specific Bending Performance of 3D-Printed PLA Re-Entrant Sandwich Structures

Dechawat Wannarong, Thanyarat Singhanart
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DOI10.4186/ej.2026.30.8.129 August 2026
63 36

Vol. 30 No. 8 (2026): Regular Issue

Environment, Energy and Natural Resources

VUF-Aware Dynamic Operating Envelopes with Coordinated DERs Dispatch and Phase Swapping

VFD-Based Frequency Regulation and Surplus Utilization Framework for Standalone Micro-Hydro Power Plants

Modeling and Experimental Validation of R410A Condensing Flow in a 1.5-Ton Split Vapor Compression Refrigeration Unit

Modern Engineering Technology

Using Output-Feedback Disturbance Observer to Enhance Disturbance Suppression of PID Controllers for DC-Motor Trajectory Tracking Systems

Diophantine Spectral Control for Nonlinear Internal Resonance Suppression

Solution-Based Fertilizer Detection Using Guided-Mode Resonance Optical Sensors: A Comparative Study with a Commercial Multispectral Sensor

Optimization of Mechanical and Durability Performance of Bacterial Concrete Using Taguchi Method

Engineering Properties of Conventional Concrete Incorporating Different Amounts of Dry Ice

Effect of Printing Speed and Core Relative Density on the Mass-Specific Bending Performance of 3D-Printed PLA Re-Entrant Sandwich Structures

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