Journal of Engineering and Technological Sciences welcomes full research articles in: General Engineering, Earth-Surface Processes, Materials Science, Environmental Science, Mechanical Engineering, Chemical Engineering, Civil and Structural Engineering.


In Progress

Vol. 57 No. 1 (2025): February 2025 (In Progress)
Published: 2025-01-07

Articles

  • Satellite-Observed Monthly Variability of Sea Surface Chlorophyll-a Concentration: A Case Study in East Malaysia

    DOI : 10.5614/j.eng.technol.sci.2025.57.1.1
    Ricky Anak Kemarau (1), Oliver Valentine Eboy (2), Zaini Sakawi (3), Stanley Anak Suab (4), Noorashikin Md Noor (5)
    (1) Earth Observation Centre, Institute of Climate Change, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia ,
    (2) Geography Program, Faculty Social Sciences and Humanities, University Malaysia Sabah, Jalan UMS, 88400 Kota Kinabalu, Sabah, Malaysia ,
    (3) Earth Observation Centre, Institute of Climate Change, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia ,
    (4) Institute for Tropical Biology and Conservation, Universiti Malaysia Sabah, Jalan UMS, 88400 Kota Kinabalu, Sabah, Malaysia ,
    (5) Earth Observation Centre, Institute of Climate Change, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia
    Abstract : 112
    PDF : 40
    DOI: https://doi.org/10.5614/j.eng.technol.sci.2025.57.1.1

  • 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 : 32
    PDF : 0
    DOI: https://doi.org/10.5614/j.eng.technol.sci.2025.57.1.2
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