Vol. 5 No. 1 (2026): Resilient Tropical Futures: Digital Transformation, Green Infrastructure, and Climate Adaptation

Articles

• Analysis of Dependable Flow in the Brantas Watershed using Google Earth Engine

  Miswara Al-Wadji, Mochamad Gaharu Dida Devedo

  1-9

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• Structural Assessment of Teak Timber Beams in Heritage Buildings: Integrated Visual Inspection and FEM Analysis of OJK Central Java Office

  Aco Wahyudi Efendi

  10-22

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• Preliminary Study of Breakpoint Chlorination (BPC) at Tura Tea WWTP, Samarinda

  Anugrah Dimas Firzatullah, Syaipurahman, Angelin Geno Putri Garchia, Tiara Dwi Oktaviani, Rizqi Nadhirawaty, Fahrizal Adnan

  23-30

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• Analysis of β-Carotene Content in Crude Palm Oil from PT. REA Kaltim using Transesterification and Esterification Methods with UV-Vis Spectrophotometry

  Nadhira Hibatusya Alleyda, Nabila Dian Cahya, Said Tirmidzi Iqbal Maulana, Ari Susandy Sanjaya

  31-38

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• Analysis of Essential Oil Content from Cajeput Leaves (Melaleuca leucadendra) Using Soxhlet Extraction: Comparison of Ordinary Water and Methanol Solvents

  Sitti Rahmawati, Ari Susandy Sanjaya

  39-47

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• Effect of Time and Different Catalysts on Biodiesel Production using Co-Solvent Method

  Indah Prihatiningtyas, Muhammad Hernandi Soebagyo, Loviawan Felix Jeremy

  48-52

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• Integrated Risk Analysis and Delay Prediction in Construction Projects using XGBoost, Monte Carlo Simulation, and Rule-Based Reasoning

  Farras Nadhif Danedrata Herman, Mochamad Gaharu Dida Devedo

  53-62

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• The Effect of Random-Access Memory Capacity on the Performance of FL Studio (Fruity Loops) on Laptops

  Didit Suprihanto, Adi Pandu Wirawan, Ikhsan Yusuf, Happy Nugroho, Arif Harjanto

  63-67

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• Industrial Gas Production Capacity Planning Strategy using System Dynamics to Support the IKN Project

  Yusril Masa Mahendra, Christoper Davito Prabandewa Hertadi, Mochamad Sulaiman

  68-72

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• Utilization of Empty Oil Palm Fruit Bunches as a Source of Nanocrystalline Cellulose through the Acetic Acid Hydrolysis Method

  Abdul Hafid, Siti Nurkhamidah, Siti Machmudah

  73-78

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• Sustainable Exploration of Mine Water Residuals for Drinking Water Resilience in Jahab, Tenggarong, Kutai Kartanegara Regency

  Ansahar Ansahar, Yustina Hong Lawing, Misran Misran, Annisa Fitriwardani, Febrian Nanendra, Aldi Muhammad Miftahuddin, Tommy Andryan Tivianton

  79-85

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• The Potential of Eco-Enzyme as an Environmentally Friendly Product for Organic Waste Management

  Tantra Diwa Larasati, Rizka Lestari, Warda Sakinatul Ashaban Suhardi, Nabila Ramadhani

  86-90

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• The Effect of Asphalt Modification With PET Plastic Waste and Latex Rubber on AC-WC Asphalt Pavement Mixture with Local Aggregate from East Kalimantan

  Johannes E. Simangunsong, Budi Haryanto, Muhammad Jazir Alkas, Rahmat Rian Kurniawan

  91-97

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• Modeling and Simulation of Nanofiltration for Separating Calcium, Magnesium, and Sulfate from Rejected Brine to Produce High-Purity Salt

  Mohamad Sugianto, Ali Altway, Susianto Susianto

  98-109

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• Traffic Impact Analysis of Hotel & Convention Center Development on National Road in Malang City

  Chalsi Mala Sari, Mochamad Gaharu Dida Devedo, Raihan Nur Mahdy, Ragil Gema Dwi Amarta, Muhammad Ibadurrahman Arrasyid Supriyanto, Supriyanto Supriyanto

  110-121

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