Vol. 25 No. 2 (2025)

View Vol. 25 No. 2 (2025)
Published: 2025-12-31

  • Front Cover Vol. 25 No. 2

    DOI: https://doi.org/10.55981/jet.833

  • Preface Vol. 25 No. 2

    DOI: https://doi.org/10.55981/jet.834

Articles

  • Implementation of Internet of Things-Based Autofeeder to Maintain Koi Pond Water Quality

    Helmy Helmy, Suko Tyas Pernanda, Septiantar Tebe Nursaputro, Mona Inayah Pratiwi, Brian Rahmaditya, Clara Silvia Anggreini
    71 - 79
    DOI: https://doi.org/10.55981/jet.717

  • 2.4 GHz Energy Harvester for Ultra-Low Power IoT Sensor Applications

    Farrah Vauzia, Enceng Sulaeman, Yana Taryana
    80 - 85
    DOI: https://doi.org/10.55981/jet.679

  • Fabrication of Quartz Crystal Microbalance Coated with GO/PVC Nanofiber for Benzene Detection as Tuberculosis Biomarker

    Doni Bowo Nugroho, Nada Nadzira Ayasha Kamal, Rosita Wati, Nova Resfita
    86 - 92
    DOI: https://doi.org/10.55981/jet.765

  • Feature Selection and Class Imbalance Machine Learning for Early Detection of Thyroid Cancer Recurrence: A Performance-Based Analysis

    Agus Wantoro, Wahyu Caesarendra, Admi Syarif, Hari Soetanto
    93 - 101
    DOI: https://doi.org/10.55981/jet.758

  • Comparative Performance of Regression and Ensemble Learning Algorithms in Precision Irrigation Forecasting of Sweet Potato

    Muthia Rahmah, Indra Maulana
    102 - 118
    DOI: https://doi.org/10.55981/jet.799

  • Smartphone-Based Colorimetric Platform with RGB-CIELAB Multivariate Regression and 3D-Printed Illumination for Portable Multi-Analyte Detection

    Robeth Viktoria Manurung, Jonathan Edwards Telaumbanua, Richard Anthony Lim, Winda Astuti, Dedi Mada, Agustina Sus Andreani
    119 - 125
    DOI: https://doi.org/10.55981/jet.798

  • Phase-Sensitive Radar Using ADALM-Pluto SDR and Cantenna for Sub-Millimeter Displacement Measurement

    Eril Mozef, Ridho Shofwan Rasyid, Enceng Sulaeman, Tiyo Rizky Mulyana, Fahrizal Al Farik, Thaskia Qolbi Junjunan
    126 - 140
    DOI: https://doi.org/10.55981/jet.757

  • Comparative Analysis and Mitigation of Extremely Low Frequency (ELF) Magnetic Field Exposure from Smartphone Internal

    Bayu Wira Yudha, Hasballah Zakaria
    141 - 147
    DOI: https://doi.org/10.55981/jet.781

  • Dual-Function Aperture-Coupled Spiral Resonator Antenna with Integrated Impedance Matching Network for Enhanced Radiation Performance

    Mochamad Yunus, Yamato Yamato, Bloko Budi Rijadi, Waryani Waryani, Muhammad Farhan Maulana, Teguh Firmansyah, Achmad Munir
    148 - 161
    DOI: https://doi.org/10.55981/jet.804

  • PID Controller-Based Closed-Loop Fast Charging of Lithium-Ion Batteries Using the CCCV Method

    Tole Sutikno, Tri Wahono, Ahmad Raditya Cahya Baswara
    162 - 169
    DOI: https://doi.org/10.55981/jet.749

  • Design, Fabrication, and Experimental Evaluation of a 435 MHz Helical Antenna for 433 MHz IoT Modules

    Rusfa Rusfa, Rozeff Pramana, Bavitra Bavitra, Ferly Oktavia, M. Hasbi Sidqi Alajuri, Andreas M Simannulang
    170 - 180
    DOI: https://doi.org/10.55981/jet.813

  • Appendix Vol. 25 No. 2

    DOI: https://doi.org/10.55981/jet.835

  • Back Cover Vol. 25 No. 2

    DOI: https://doi.org/10.55981/jet.836