Vol. 9 No. 3 (2025): Specta Journal of Technology

Articles

• Effect of Solution Treatment and Shot Peening Processes on the Mechanical Strength and Microstructure of Austenitic Manganese Steel for Rail Frognose Components

  Wahyu Tian Wahyu⁽¹⁾, ITB, ID;
  Raden Dadan Ramdan⁽²⁾, Institut Teknologi Kalimantan, ID;
  

  198-208

  • Pp. 198-208

• The Design and Performance Assessment of a Stove Fueled by Waste Cooking Oil based on FFEAS Technology using the French Method

  Rizal Justian Setiawan⁽¹⁾, Industrial Engineering and Management, College of Engineering, Yuan Ze University, Republic of China, TW;
  Khakam Ma'ruf⁽²⁾, Department of Mechanical Engineering Education, Yogyakarta State University, Yogyakarta, Republic of Indonesia, ID;
  Darmono⁽³⁾, Department of Civil Engineering Education, Faculty of Engineering, Yogyakarta State University, Indonesia, ID;
  Nur Evirda Khosyiati⁽⁴⁾, Department Culinary Technology Education, Faculty of Engineering, Yogyakarta State University, Yogyakarta, Indonesia, ID;
  Nur Azizah⁽⁵⁾, Department International Public Health, School of Public Health, China Medical University, Republic of China, TW;
  

  209-218

  • Pp. 209-218

• Mathematical Modeling and Optimal Control of Malaria Disease Spread in North Panajam Paser Regency

  Ahmad Maulana Syafi'i⁽¹⁾, UIN Sultan Aji Muhammad Idris Samarinda, ID;
  Yosinta Sari⁽²⁾, Universitas Islam Negeri Sultan Aji Muhammad Idris Samarinda, ID;
  

  219-228

  • Pp. 219-228

• Investment Feasibility Analysis: A Case Study of Ciputra Group Property Company Using the Cost–Benefit Analysis Method

  Risqi’a Shauma Salsabiilla⁽¹⁾, Institut Teknologi Kalimantan, ID;
  Adnan Oktar⁽²⁾, Institut Teknologi Kalimantan, ID;
  Febri Rahmawati⁽³⁾, Institut Teknologi Kalimantan, ID;
  Muh Ikhsan Alif. S⁽⁴⁾, Institut Teknologi Kalimantan, ID;
  

  229-237

  • Pp. 229-237

• Implementation of Enterprise Risk Management: A Case Study of Cirowaste Startup

  Mohammad Reza Fahlevi⁽¹⁾, Universitas Nahdlatul Ulama Indonesia, ID;
  I Putu Deny Arthawan Sugih Prabowo⁽²⁾, Institut Teknologi Kalimantan, ID;
  Risqi’a Shauma Salsabiilla⁽³⁾, Institut Teknologi Kalimantan, ID;
  Ghea Amanda Aulia Putri⁽⁴⁾, Institut Teknologi Kalimantan, ID;
  Ghina Alyaa Farraas⁽⁵⁾, Institut Teknologi Kalimantan, ID;
  Muhammad Nurhadi Efendi⁽⁶⁾, Institut Teknologi Kalimantan, ID;
  

  238-252

  • Pp. 238-252

• Greenhouse Gas Emissions Analysis from Waste Management at Institut Teknologi Kalimantan Using the Intergovernmental Panel on Climate Change (IPCC) Methodology Greenhouse Gas Emissions Analysis from Waste Management at Institut Teknologi Kalimantan

  Samuel Bunga'⁽¹⁾, Institut Teknologi Kalimantan, ID;
  Chandra Suryani Rahendaputri⁽²⁾, Institut Teknologi Kalimantan, ID;
  Rahmi Yorika⁽³⁾, Institut Teknologi Kalimantan, ID;
  Intan Dwi Wahyu Setyo Rini⁽⁴⁾, Institut Teknologi Kalimantan, ID;
  Melisa Triandini Maulana⁽⁵⁾, Institut Teknologi Kalimantan, ID;
  

  253-265

  • Pp. 253-265

• Innovative Processing of Oyster Mushroom Baglog Waste into Compost Using Fermented Rice-Based MOL as a Bioactivator

  Nia Febrianti⁽¹⁾, Institut Teknologi Kalimantan, ID;
  Basransyah⁽²⁾, Institut Teknologi Kalimantan, ID;
  Nuri Dwi Safitri⁽³⁾, Institut Teknologi Kalimantan, ID;
  

  266-279

  • Pp. 266-279

• Distribution Route Optimization on Heterogeneous Capacitated Vehicle Routing Problem (HCVRP) Using Evolutionary Algorithm (Case Study: CV. XYZ)

  Tito Bisma May Willis⁽¹⁾, Institut Teknologi Kalimantan, ID;
  Melly Rosinta Pasaribu⁽²⁾, Institut Teknologi Kalimantan, ID;
  Al Dian Devina Sandra⁽³⁾, Institut Teknologi Kalimantan, ID;
  Tarizza Alya Nurul Miftah⁽⁴⁾, Institut Teknologi Kalimantan, ID;
  

  280-290

  • Pp. 280-290

• Application of Mixed Pineapple Peel and Papaya Seed Extracts as a Biocoagulant for Reducing Fe, Mn, and Turbidity in Acid Mine Drainage Using the Jar Test Method

  Ismi Khairunnissa Ariani⁽¹⁾, Institut Teknologi Kalimantan, ID;
  Rina Noor Hayati⁽²⁾, Institut Teknologi Kalimantan, ID;
  Riza Hudayarizka⁽³⁾, Institut Teknologi Kalimantan, ID;
  Cut Keumala Banaget⁽⁴⁾, Institut Teknologi Kalimantan, ID;
  Krisma Nabilla⁽⁵⁾, Institut Teknologi Kalimantan, ID;
  

  291-302

  • Pp. 291-302

• Optimization of Laundry Wastewater Treatment Using Zeolite and Activated Carbon Media in a Compact Dual-Tube Combination Filter Optimalisasi Pengolahan Air Limbah Laundry menggunakan Media Zeolit dan Karbon Aktif dalam Filter Kombinasi Dua Tabung Kompak

  Muhammad Bagas Muhammad Bagas Grahandikha⁽¹⁾, Program Studi Teknik Lingkungan, Fakultas Teknik, Universitas Pasundan, Bandung, Indonesia, ID;
  Hary Pradiko⁽²⁾, Universitas Pasundan, ID;
  Anni Rochaeni⁽³⁾, Universitas Pasundan, ID;
  

  303-314

  • Pp. 303-314