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Perfluorooctanesulfonic acid Sorption onto Polyethylene Microplastics: A Simulation-Driven Response Surface Optimization via Central Composite Design

DOI : 10.5614/j.eng.technol.sci.2025.57.1.2

Christian Enyoh ⁽¹⁾, Qingyue Wang ⁽²⁾, Prosper Eguono Ovuoraye ⁽³⁾, Senlin Lu ⁽⁴⁾, Titus Egbosiuba ⁽⁵⁾

(1) Graduate School of Science and Engineering, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama City, Saitama 338-8570, Japan ,

(2) Graduate School of Science and Engineering, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama City, Saitama 338-8570, Japan ,

(3) Department of Chemical Engineering, Federal University of Petroleum Resources, PMB 1221 Effurun, Nigeria ,

(4) School of environmental and chemical engineering, Shanghai University, Shanghai 200444, China ,

(5) Sustainable Materials Laboratory (SusMatLab), Missouri University of Science and Technology, Rolla, MO 65409,, United States

11-26

Abstract : 1214

PDF : 776

DOI : 10.5614/j.eng.technol.sci.2025.57.1.2

DOI: https://doi.org/10.5614/j.eng.technol.sci.2025.57.1.2

The Effect of Illumination, Electrode Distance, and Illumination Periods on the Performance of Phototrophic Sediment Microbial Fuel Cells (PSMFCs)

DOI : 10.5614/j.eng.technol.sci.2024.56.1.1

Ardiyan Harimawan ⁽¹⁾, Hary Devianto ⁽²⁾, Nicholas Khodiyat ⁽³⁾, Kreszen Livianus Gatalie ⁽⁴⁾, Christian Aslan ⁽⁵⁾

(1) Chemical Engineering Program, Faculty of Industrial Technology, Institut Teknologi Bandung, Jalan Ganesa 10 Bandung, Jawa Barat 40132, Indonesia ,

(2) Chemical Engineering Program, Faculty of Industrial Technology, Institut Teknologi Bandung, Jalan Ganesa 10 Bandung, Jawa Barat 40132,, Indonesia ,

(3) Chemical Engineering Program, Faculty of Industrial Technology, Institut Teknologi Bandung, Jalan Ganesa 10 Bandung, Jawa Barat 40132, Indonesia ,

(4) Chemical Engineering Program, Faculty of Industrial Technology, Institut Teknologi Bandung, Jalan Ganesa 10 Bandung, Jawa Barat 40132, Indonesia ,

(5) Chemical Engineering Program, Faculty of Industrial Technology, Institut Teknologi Bandung, Jalan Ganesa 10 Bandung, Jawa Barat 40132, Indonesia

1-10

Abstract : 1171

PDF : 301

DOI : 10.5614/j.eng.technol.sci.2024.56.1.1

DOI: https://doi.org/10.5614/j.eng.technol.sci.2024.56.1.1

Charring Depth and Charring Rate of Resak and Jelutong Timber Beams in Two-Dimensional Fire

DOI : 10.5614/j.eng.technol.sci.2026.58.4.8

Lannie Francis ⁽¹⁾, Ahmad Beng Hong Kueh ⁽²⁾, Norshariza Mohamad Bhkari ⁽³⁾, Zakiah Ahmad ⁽⁴⁾, Hafizah Muhamad Azlan ⁽⁵⁾, Muhammad Bazli Faliq Mohd Puaad ⁽⁶⁾

(1) Faculty of Civil Engineering, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, , Malaysia ,

(2) Department of Civil Engineering, Faculty of Engineering, Universiti Malaysia Sarawak, 94300 Kota Samarahan, Sarawak, , Malaysia ,

(3) Institute for Infrastructure Engineering and Sustainable Management (IIESM), Universiti Teknologi MARA, 40450 Shah Alam, Selangor, , Malaysia ,

(4) Faculty of Civil Engineering, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia ,

(5) Faculty of Civil Engineering, Universiti Teknologi MARA, Penang Branch, Permatang Pauh Campus, 13500 Permatang Pauh, , Malaysia ,

(6) Faculty of Civil Engineering, Universiti Teknologi MARA, Johor Branch, Pasir Gudang Campus, 81750 Masai, Johor Darul Ta'zim, Malaysia

570-583

Abstract : 136

PDF : 31

DOI : 10.5614/j.eng.technol.sci.2026.58.4.8

DOI: https://doi.org/10.5614/j.eng.technol.sci.2026.58.4.8

Electroencephalogram-Based Multi-Class Driver Fatigue Detection using Power Spectral Density and Lightweight Convolutional Neural Networks

DOI : 10.5614/j.eng.technol.sci.2025.57.4.2

Wiwit Suprihatiningsih ⁽¹⁾, Dedik Romahadi ⁽²⁾, Aberham Genetu Feleke ⁽³⁾

(1) Department of Mechanical Engineering, Universitas Mercu Buana, Jalan Raya Meruya Selatan 11650, Jakarta, Indonesia ,

(2) Department of Mechanical Engineering, Universitas Mercu Buana, Jalan Raya Meruya Selatan 11650, Jakarta, Indonesia ,

(3) School of Mechanical Engineering, Beijing Institute of Technology, No. 5 Zhongguancun South Street 100811, China

445-457

Abstract : 1412

PDF : 486

DOI : 10.5614/j.eng.technol.sci.2025.57.4.2

DOI: https://doi.org/10.5614/j.eng.technol.sci.2025.57.4.2

Volcanoes Segmentation at the Western Sunda Arc based on Satellite-derived Geological Lineaments and Land Surface Temperatures

DOI : 10.5614/j.eng.technol.sci.2025.57.3.4

Ridwan Rahmanto ⁽¹⁾, Asep Saepuloh ⁽²⁾, Estu Kriswati ⁽³⁾, Heruningtyas Desi Purnamasari ⁽⁴⁾

(1) Faculty of Exploration and Production Technology, Pertamina University, Jalan Teuku Nyak Arief, Simprug, Kebayoran Lama, South Jakarta 12220, Indonesia ,

(2) Faculty of Earth Sciences and Technology, Institut Teknologi Bandung, Jalan Ganesa No. 10 Bandung 40132, West Java, Indonesia ,

(3) National Research and Innovation Agency, Jalan Cisitu Lama No. 21-D, Bandung 40135, , Indonesia ,

(4) Center for Volcanology and Geological Hazard Mitigation (CVGHM), Geological Agency, Jalan Diponegoro No. 57, Bandung 40122,, Indonesia

327-342

Abstract : 1397

PDF : 613

DOI : 10.5614/j.eng.technol.sci.2025.57.3.4

DOI: https://doi.org/10.5614/j.eng.technol.sci.2025.57.3.4

Quantitative Analysis of Gravity Currents Using the Light Attenuation Technique

DOI : 10.5614/j.eng.technol.sci.2025.57.1.9

Ezra Yoanes Setiasabda Tjung ⁽¹⁾, Gustaaf Adriaan Kikkert ⁽²⁾

(1) Calvin Institute of Technology, Menara Calvin Lt. 8, RMCI, Jl. Industri Blok B14 Kav. 1 Kemayoran, Jakarta Pusat 10610, Indonesia ,

(2) Bloxam, Burnett & Olliver (BBO), Level 5, Building E, Union Square, 192 Anglesea St, Hamilton, Waikato, 3204, New Zealand

118-128

Abstract : 511

PDF : 276

DOI : 10.5614/j.eng.technol.sci.2025.57.1.9

DOI: https://doi.org/10.5614/j.eng.technol.sci.2025.57.1.9

Experimental Investigation of Ammonia/Oxygen/Argon Combustion: The Role of Equivalence Ratio and Nozzle Shape in a Constant Volume Combustion Chamber with Sub-chamber

DOI : 10.5614/j.eng.technol.sci.2024.56.6.3

Mitsuhisa Ichiyanagi ⁽¹⁾, Emir Yilmaz ⁽²⁾, Takuma Ohashi ⁽³⁾, Masato Sanno ⁽⁴⁾, Guansen Lin ⁽⁵⁾, Sebastian Gunawan ⁽⁶⁾, Henry Widjaja ⁽⁷⁾, Leon Jonathan ⁽⁸⁾, Gabriel Jeremy Gotama ⁽⁹⁾, Willyanto Anggono ⁽¹⁰⁾, Takashi Suzuki ⁽¹¹⁾

(1) Department of Engineering and Applied Sciences, Faculty of Science and Technology, Sophia University, 7-1 Kioi-cho, Chiyoda-ku, Tokyo 102-8554, Japan ,

(2) Department of Engineering and Applied Sciences, Faculty of Science and Technology, Sophia University, 7-1 Kioi-cho, Chiyoda-ku, Tokyo 102-8554, Japan ,

(3) Graduate School of Science and Technology, Sophia University, 7-1 Kioi-cho, Chiyoda-ku, Tokyo 102-8554, Japan ,

(4) Graduate School of Science and Technology, Sophia University, 7-1 Kioi-cho, Chiyoda-ku, Tokyo 102-8554, , Japan ,

(5) Graduate School of Science and Technology, Sophia University, 7-1 Kioi-cho, Chiyoda-ku, Tokyo 102-8554, Japan ,

(6) Mechanical Engineering Department, Petra Christian University, Jalan Siwalankerto 121-131, Surabaya 60236, Indonesia ,

(7) Mechanical Engineering Department, Petra Christian University, Jalan Siwalankerto 121-131, Surabaya 60236, Indonesia ,

(8) Mechanical Engineering Department, Petra Christian University, Jalan Siwalankerto 121-131, Surabaya 60236, , Indonesia ,

(9) Centre for Sustainable Energy Studies, Petra Christian University, Jalan Siwalankerto 121-131, Surabaya 60236, Indonesia ,

(10) Centre for Sustainable Energy Studies, Petra Christian University, Jalan Siwalankerto 121-131, Surabaya 60236, Indonesia ,

(11) Department of Engineering and Applied Sciences, Faculty of Science and Technology, Sophia University, 7-1 Kioi-cho, Chiyoda-ku, Tokyo 102-8554, Japan

704-715

Abstract : 1259

PDF : 248

DOI : 10.5614/j.eng.technol.sci.2024.56.6.3

DOI: https://doi.org/10.5614/j.eng.technol.sci.2024.56.6.3

Solvent-free Synthesis of Transition Metals Nanoparticles Decorated Foamy Flakes-like Nitrogen-doped Carbon as Bifunctional-catalyst for High-performance Rechargeable Zn-air Batteries

DOI : 10.5614/j.eng.technol.sci.2024.56.5.10

Pilar Bela Persada ⁽¹⁾, Davin Adinata Tan ⁽²⁾, Rachendra Akmalia ⁽³⁾, Yuyun Irmawati ⁽⁴⁾, Afriyanti Sumboja ⁽⁵⁾

(1) Material Science and Engineering Research Group, Faculty of Mechanical and Aerospace Engineering, Institut Teknologi Bandung, Jalan Ganesa 10, Bandung 40132, Indonesia ,

(2) Material Science and Engineering Research Group, Faculty of Mechanical and Aerospace Engineering, Institut Teknologi Bandung, Jalan Ganesa 10, Bandung 40132, Indonesia ,

(3) Material Science and Engineering Research Group, Faculty of Mechanical and Aerospace Engineering, Institut Teknologi Bandung, Jalan Ganesa 10, Bandung 40132, Indonesia ,

(4) Doctoral Program of Nanosciences and Nanotechnology, Graduate School, Institut Teknologi Bandung, Jalan Ganesa 10, Bandung 40132, Indonesia ,

(5) Collaboration Research Center for Advanced Energy Materials, National Research and Innovation Agency - Institut Teknologi Bandung, Jalan Ganesa 10, Bandung 40132, Indonesia

666-678

Abstract : 5180

PDF : 418

DOI : 10.5614/j.eng.technol.sci.2024.56.5.10

DOI: https://doi.org/10.5614/j.eng.technol.sci.2024.56.5.10

Innovative Approach to Graphene Film Synthesis: Factorial Design in PECVD Experiments

DOI : 10.5614/j.eng.technol.sci.2025.57.1.6

Siwasit Pitjamit ⁽¹⁾, Norrapon Vichiansan ⁽²⁾, Komgrit Leksakul ⁽³⁾

(1) Department of Industrial Engineering, Faculty of Engineering, Rajamangala University of Technology Lanna, Tak 63000, Thailand ,

(2) Multidisciplinary Center, Faculty of Engineering, Chiang Mai University, Chiang Mai 50200, Thailand ,

(3) Department of Industrial Engineering, Faculty of Engineering, Chiang Mai University, Chiang Mai 50200, Thailand

78-92

Abstract : 843

PDF : 495

DOI : 10.5614/j.eng.technol.sci.2025.57.1.6

DOI: https://doi.org/10.5614/j.eng.technol.sci.2025.57.1.6

Improving Myoelectric Hand Gesture Recognition using Multiple High-density Maps

DOI : 10.5614/j.eng.technol.sci.2025.57.3.10

Hanadi A. Jaber ⁽¹⁾, Heba Hakim ⁽²⁾, Zaineb Mohammed Alhakeem ⁽³⁾, Aum_Al Huda G. Abood ⁽⁴⁾

(1) Computer Engineering Department, University of Basrah, Basrah 61004, , Iraq ,

(2) Computer Engineering Department, University of Basrah, Basrah 61004, , Iraq ,

(3) Basrah University for Oil and Gas, Basrah 61001, Iraq ,

(4) Computer Engineering Department, University of Basrah, Basrah 61004, , Iraq

422-430

Abstract : 761

PDF : 297

DOI : 10.5614/j.eng.technol.sci.2025.57.3.10

DOI: https://doi.org/10.5614/j.eng.technol.sci.2025.57.3.10

Perfluorooctanesulfonic acid Sorption onto Polyethylene Microplastics: A Simulation-Driven Response Surface Optimization via Central Composite Design

The Effect of Illumination, Electrode Distance, and Illumination Periods on the Performance of Phototrophic Sediment Microbial Fuel Cells (PSMFCs)

Charring Depth and Charring Rate of Resak and Jelutong Timber Beams in Two-Dimensional Fire

Electroencephalogram-Based Multi-Class Driver Fatigue Detection using Power Spectral Density and Lightweight Convolutional Neural Networks

Volcanoes Segmentation at the Western Sunda Arc based on Satellite-derived Geological Lineaments and Land Surface Temperatures

Quantitative Analysis of Gravity Currents Using the Light Attenuation Technique

Experimental Investigation of Ammonia/Oxygen/Argon Combustion: The Role of Equivalence Ratio and Nozzle Shape in a Constant Volume Combustion Chamber with Sub-chamber

Solvent-free Synthesis of Transition Metals Nanoparticles Decorated Foamy Flakes-like Nitrogen-doped Carbon as Bifunctional-catalyst for High-performance Rechargeable Zn-air Batteries

Innovative Approach to Graphene Film Synthesis: Factorial Design in PECVD Experiments

Improving Myoelectric Hand Gesture Recognition using Multiple High-density Maps

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