Vol 23, No 5 (2025)

October

DOI: http://dx.doi.org/10.30811/jpl.v23i5

Table of Contents

The effect of electromagnet variation in the fuel line on engine performance and exhaust gas emissions
Indra Swastika, Faris Humami
PDF
546-551
Impact of spindle tilt and machining parameters on surface roughness in milling
Romiyadi Romiyadi, Adi Febrianton
PDF
552-560
Development of an embedded coolant system incorporat-ing minimum quantity lubrication for CNC milling applications
Yogi Muldani Hendrawan, Andri Pratama, Taufik Abdul Karim Ihsyani, Ruswandi Ruswandi, Herman Budi Harja
PDF
561-567
Design and development of a solar energy-based egg incubator using the quality function deployment (QFD) method with an automatic sliding rack
Muhammad Prasha Risfi Silitonga, Muchamad Wali Muklas, Muhammad Azhar Prakoso, Pribadi Mumpuni Adhi, Radhi Maladzi
PDF
568-574
Evaluation of mechanical and ballistic properties of abaca–polyester composites as a candidate material for bulletproof vests
Zainal Arif, Taufan Arif Adlie, Iskandar Yakob, Syamsul Bahri Widodo, Suheri Suheri, Abriandi Sahputera Ritonga, Sariyusda Sariyusda
PDF
575-584
Analysis of deformation behavior in circular and square hollow sections with wall thickness of 0.7 -1.0 mm in rotary draw bending
Syamsul Bahri Widodo, Suheri Suheri, Faris Ahmad Mizanus Sabri, Zainal Arif, Muhammad Khairul Raziqin, Teuku Menazmi, Muhammad Safi'i
PDF
585-591
Experimental study on the tensile and compressive properties of local bamboo fiber polyester composites with varying fiber species and resin ratios
Taufan Arif Adlie, Zainal Arif, Syahiir Kamil, Maidin Maidin, Farhan Hasmi, Teuku Azuar Rizal
PDF
592-598
Distortion and mechanical properties of welded AA5083 aluminum material with friction stir welding
Pujono Pujono, Ipung Kurniawan, Joko Setia Pribadi, Nur Akhlis Sarihidaya Laksana, Roy Aries Permana Tarigan
PDF
599-604
Dynamic braking performance of a low-mass prototype vehicle under different speeds and loads
Budi Istana, Abrar Ridwan, Izazul Kafitra Sitompul
PDF
605-610
Hybrid spot welding-epoxy bonding of AISI 1008 steel: Shear and nugget analysis
Paryanto Dwi Setyawan, Irfan Hakiki, Sugiman Sugiman, Salman Salman, Sinarep Sinarep, Andi Maulana
PDF
611-621
Analysis of working posture of coffee bean milling operators to reduce musculoskeletal disorder risks using the OWAS and REBA method
Mutia Mutia, Mohd Iqbal, MT, Iskandar Hasanuddin
PDF
622-628
Chemical treatments' effect on the structural and mecha-nical properties of polyvinyl alcohol/spent coffee ground composite films
Muhibbuddin Muhibbuddin, Farid Ilham, Ikramullah Muhammad, Samsul Rizal
PDF
629-636
Design and development of a radial air bearing concave profile for an educational tool
Herman Budi Harja, Risky Ayu Febriani, Novi Saksono, M Yazid Diratama, M Fauzi
PDF
637-642
Mechanical and impact performance of oil palm trunk fiber composites for crash box applications
Sukarno Sukarno, Indah Melati Suci
PDF
643-649
Development of a low-cost microcontroller-based carbon capture device using the direct air capture (DAC) method and sodium hydroxide absorbent
Chalidia Nurin Hamdani, Muhammad Hafiz Muhajir, Novan Akhiriyanto, M. Zaky Zaim Muhtadi, Hanny Megawati Rosalinda
PDF
650-656
Identifying key parameters affecting the mechanical properties of 3D-printed ABS materials
Muhammad Nuzan Rizki, Reza Putra, Alpaslan DurmuÅŸ, Muhammad Isra
PDF
657-663
Investigation of surface roughness in turning AISI 1020 steel using minimum quantity lubrication (MQL) with recycled cooking oil
Muhammad Rismanto, Awal Syahrani Sirajuddin, Jumaddil Hair, Hidayat Hidayat, Yandi Yandi, Fachrul Rozy
PDF
664-669
Investigation of geometric effects on fluid viscosity using the falling ball method
Amnur Akhyan, Mustaza Ma’a, Fortinov Akbar Irdam, Alvin Alvarez, Nurcahya Nugraha, Nurkhamdi Nurkhamdi
PDF
670-674
Waste cooking oil biodiesel via a sodium hydroxide-catalyzed transesterification process: effects on diesel engine performance and emissions
Abdul Hamid, Muhammad Badrus Syafa, Misbakhul Fatah, Amin Jakfar, Zeni Rahmawati, Tri Esti Purbaningtias, Mohammad Anas Fikri, Faizatur Rohmah, Auliana Diah Wilujeng
PDF
675-683
Mitigating operational risks and enhancing machine performance through total productive maintenance and OEE: a case study on packaging equipment
Ruspendi Ruspendi, Rusmalah Rusmalah, Franka Hendra, Riki Effendi
PDF
684-689
Biodiesel synthesis from used cooking oil via esterification-transesterification using jackfruit derived waste solid catalysts
Andi Mulkan, Misswar Abd, Kamarullah Kamarullah
PDF
690-695
An in-situ experimental and numerical evaluation on thermoelectric generators performance utilizing diesel engine exhaust heat
Sugiyanto Sugiyanto, Nyayu Aisyah, Yosephus Ardean Kurnianto Prayitno, Irfan Bahiuddin
PDF
696-702
Tracking solar panel maximum power point using IoT-based mamdani fuzzy logic control
Nuryanti Nuryanti, Yuliadi Erdani, Ruminto Subekti, Wahyudi Purnomo, Nathan Indrajaya, Bahdin Ahad Badia
PDF
703-710
Hydrometallurgical extraction of TiO2 from iron sand for industrial raw material
Sony Sukmara, Azwar Manaf, Wisnu Ari Adi, Adi Ganda Putra
PDF
711-716
Investigation of the acoustic behavior of oil palm (Elaeis guineensis) frond fiber at various weights
Tajuddin Tajuddin, Husaini Husaini, Suhaeri Suhaeri
PDF
717-722