Vol 24, No 1 (2026)

February

DOI: http://dx.doi.org/10.30811/jpl.v24i1

Table of Contents

Design and performance test of a water hyacinth (Eichhornia crassipes) and coconut shell charcoal briquette mixing machine
Yusup Nur Rohmat, Adi Kusmayadi, Ferry Sugara, Riza Apriansyah, Neli Agustin
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1-8
Effect of anode–cathode distance and anodizing time on hardcoat anodizing of AA7075
Tito Endramawan, Emin Haris, Yusup Nur Rohmat, Candra Irawan
PDF
9-13
Effectiveness of TiO2-coated stainless steel mesh reactor with UV-LED on the reduction of cigarette smoke pollutants in a closed room
Renita Dewi, Pribadi Mumpuni Adhi, Tatun Hayatun Nufus
PDF
14-19
Energy content analysis of extruded briquettes: effects of mesh granularity and corn cob-to-coconut shell residue blend composition
Khamdi Mubarok, Teguh Prasetyo, Ian Budi Pratama
PDF
20-25
Experimental study of the physical and mechanical properties of particleboard reinforced with eggshell, wood, and bamboo hybrid fillers
Sunardi Sunardi, Thairq Al Aziz Pratama, Mekro Permana Pinem, Yusvardi Yusuf, Agung Sudrajad, Indar Kustiningsih
PDF
26-34
Optimisation of biolubricant synthesis from castor–maggot oil mixture via two-stage transesterification using response surface methodology
Teuku Mukhriza, Adelia Yesya Putri Hasibuan, Erna Juwita, Husni Husin, Arridina Susan Silitonga
PDF
35-41
Experimental analysis of process parameters in semi-automatic blow molding of PET bottles: a case study at Universitas Negeri Malang product
Obaja Eden Sentosa Riyanto, Dewi Izzatus Tsamroh, Ilham Akbar Wandoyo, Den Arsyah Pilar Pancayudha, Hikmal Faidillah
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42-48
Experimental Investigation Of MQL Turning Parameters On Surface Quality And Tool Wear Toward Green Machining Practices
E'ep Fadil Abdilah Gobel, Muhammad Rismanto, Kristian Selleng, Awal Syahrani Sirajuddin, Iskandar Iskandar, Anjar Asmara
PDF
49-54
Integration of taguchi method and digital metrology for precision fused deposition modelling of PLA-based vibration-damping components
Danang Yudistiro, Salahuddin Junus, Dani Hari Tunggal Prasetiyo, Istiqomah Rahmawati, Helda Wika Amini, Meta Fitri Rizkiana
PDF
55-63
Design, simulation, and experimental validation of a 50 kg biomass-fired coffee drying oven
Agus Nuramal, Efran Riansyah Rahmat Jaya, Dedi Suryadi, Zuliantoni Zuliantoni1, Hardiansyah Hardiansyah, Rama Dani Eka Putra
PDF
64-70
Effect of electrolyte medium on the tensile strength of coconut coir–epoxy composites via liquid plasma treatment
Sudirman Sudirman, Muh Firdan Nurdin, Marhadi Budi Waluyo, Eva Tri Wulandari, Denal Lebang
PDF
71-76
Enhancement of thermal stability and corrosion resistance of palm oil lubricants using nonylphenol and polyethylene glycol additives
Haris Puspito Buwono, Aquilla Elka Ananda Kirana
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77-82
Predictive modeling of surface roughness and resultant force in CNC turning of AISI H13 using optimized artificial neural networks
Sunardi Sunardi, Ananda Nur Daffa Zain
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83-91
Intelligent multi-model system for surface roughness prediction in CNC turning of multiple materials
Rohmat Rohmat, Dianda Aryntya Firia Ferlania, Donni Frediansah Mukminin
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92-100
The impact of nozzle temperature on the shrinkage of annealed 3D printed PLA
Sugianto Sugianto, Meriatun Meriatun, Pristiansyah Pristiansyah, Ramli Ramli, Atikah Araminta Wardiyah, Hasdiansah Hasdiansah, Herianto Herianto
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101-105
Evaluation of diesel engine performance and emissions fueled with waste cooking oil biodiesel-plastic pyrolysis oil blends.
Amanu Aulia, Ilmi Abdullah, Abdi Hanra Sebayang
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106-113
Optimization of power and efficiency of a vortex water turbine through blade–outlet distance and transmission ratio analysis
Florensius Kitaro Asagi, Danar Susilo Wijayanto, Taufik Wisnu Saputra
PDF
114-118
Multi-objective tribological and energy optimization of an automatic valve lapping machine using a hybrid RSM NSGA-II approach
Reinaldi Teguh Setyawan, Ery Muthoriq, Syahrizal Syahrizal
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119-131
Displacement and Von Mises stress analysis in hydraulic actuator cylinder materials for military vehicle applications
Massuradi Simbolon, Asrori Asrori, Satworo Adiwidodo, Sugeng Hadi Susilo
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132-138
Experimental study on the effect of coal composition on the activation energy of sponge iron reduction
Sabuki Sabuki, Khairil Khairil, Sarwo Edhy Sofyan
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139-143
Thermal performance of desiccant-integrated and conventional Maisotsenko cooling systems in a high humidity tropical climate
Haiqal Irfansyah, Sarwo Edhy Sofyan, Razali Razali
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144-150
Effect of torrefaction temperature and HDPE binder addition on the physicochemical and combustion properties of elephant grass bio pellets
Nani Siska Putri Khan, Adi Setiawan, Lukman Hakim, Zulfikar Hasibuan, Shafira Riskina
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151-158
Effect of geometric size reduction on the thermal efficiency of a galvanized plate biomass stove
Hadi Santoso, Muhammad Azhar, Melda Melda, Marhadi Budi Waluyo, Muh. Firdan Nurdin, Sudirman Sudirman, Shinta Tri Kismanti, Deny Murdianto
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159-164
Structural strength analysis of a tourist minicar knuckle using finite element analysis
Agung Fauzi Hanafi, Mega Lazuardi Umar, I Gusti Ngurah Agung Satria Prasetya Dharma Yudha, Ansor Salim Siregar
PDF
165-170
Anthropometry–Kansei for ergonomic assistive device design
Meri Andriani, Dewiyana Dewiyana, Taufan Arif Adlie, Nurmalawati Nurmalawati, Yusri Nadya, Leni Putma Sari, Bayu Revanza, Novianda Novianda, Yusnawati Yusnawati
PDF
171-178
Design and development of a microcontroller-based automatic wet scrubber system for welding smoke control using CO and gas indicator sensors
Jufri Jufri, Enni Sulfiana, Saktiani Karim, Muhammad Ridwan Anwar, Rival Alviansyah, Bintang Jayakusuma, Yuda Agung Wirawan
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179-185