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Characterization of Density and Stability of Oil Palm Empty Fruit Bunch Briquettes without Binder under Variations of Molding Temperature and Compaction Pressure Muhammad Ravi Albasyit; Yolli Fernanda; Refdinal Refdinal; Andre Kurniawan
Jurnal Vokasi Mekanika (VoMek) Vol 7 No 4 (2025): Jurnal Vokasi Mekanika
Publisher : Unversitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/vomek.v7i4.902

Abstract

The dependence on fossil fuels in Indonesia continues to increase in line with the growing energy consumption, thus necessitating alternative energy sources that are more environmentally friendly and sustainable. Oil palm empty fruit bunches (OPEFB) are agro-industrial waste with great potential to be utilized as raw material for briquette production; however, their utilization remains suboptimal. This study aims to analyze the effect of molding temperature and compaction pressure on the density and stability of binderless OPEFB briquettes. The research method employed is experimental, using a quantitative descriptive-analytical approach with non-carbonized briquettes. The treatment variations include molding temperatures (230°C, 250°C, and 280°C) and compaction pressures (1 MPa, 3 MPa, and 5 MPa) applied to two types of materials, namely dried and undried OPEFB. The results indicate that increasing temperature and compaction pressure significantly enhances briquette density. At a temperature range of 250–280°C and a pressure of 5 MPa, the briquettes achieved the highest density (>1.0 g/cm³) with strong shape stability. The thermoplastic lignin content in OPEFB melts at high temperatures, acting as a natural binder. Briquettes with a density ?0.80 g/cm³ exhibited strong physical integrity, while those with a density <0.70 g/cm³ tended to be brittle. It can be concluded that the optimum conditions for producing high-quality binderless OPEFB briquettes are achieved at a temperature range of 250–280°C and a compaction pressure of 5 MPa, resulting in briquettes with excellent density and shape stability suitable as a renewable alternative energy source
An Intelligent Curriculum Management and Career Development Framework Integrating AI and Competency Standards in TVET Nurtjahyadi Nurtjahyadi; Deviana Ridhani; Syahril Syahril; Sukardi Sukardi; Refdinal Refdinal; Rijal Abdullah; Elfi Tasrif
Jurnal Penelitian Pendidikan IPA Vol 12 No 6 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i6.15114

Abstract

The persistent misalignment between curriculum design, competency standards, and evolving industry requirements remains a critical challenge in Technical and Vocational Education and Training (TVET). Existing curriculum practices are largely static and insufficiently integrated with structured career pathways, resulting in skill mismatches and limited workforce readiness. This study proposes an intelligent curriculum management and career development framework integrating competency standards with AI-enabled decision support. A Design Science Research (DSR) methodology was employed through problem identification, framework design, demonstration, and evaluation. The framework was validated using a three-round Delphi study with TVET and curriculum experts and an empirical case study in an Indonesian TVET institution offering Information and Communication Technology (ICT) programmes based on curriculum documents and SKKNI competency standards. Performance was evaluated using alignment accuracy, relevance, and usability indicators. The results show that curriculum–competency alignment accuracy improved from **68.40%** to **91.20%**, while the framework identified four missing competencies and three redundant curriculum units. Career pathways aligned with industry roles achieved expert consensus exceeding **85.00%**. The proposed framework provides an adaptive, AI-enabled approach for data-driven curriculum governance, competency alignment, and career pathway planning, offering a replicable model for competency-based curriculum development in TVET
Co-Authors - Primawati Abdul Aziz Abdul Ghani Rahman Abdul Habib Arrasyidi Desky Abdul Habib Arrasyidi Desky Abdullah, MT, Dr. Rijal Adel Lia Mardiana Afriza Media Ahda Sabila Ahmad Arif Alhamda Afif Almes Gangga Alvien Khardin Ambiyar, Ambiyar Ambyar Ambyar Andre Kurniawan Antoni Hilman Aprizal Saputra Aqilvin Berliansyah Arief Sudarta Arisman Telaumbanua Arwizet Arwizet Arwizet Arwizet, Arwizet Aswardi Aswardi Asyahri Hadi Nasyuha Azel Rozandi Azhari Syamsu Azmil Azman Bestra Hamizum Budi Syahri Bulhadi Bulhadi Bulkia Rahim Buyung Solihin Hasugian Dedy Irfan Delima Yanti Sari Deviana Ridhani Diki Alfarizi Dino Adi Putra Doni Kris Saputra Donny Fernandez Dzaky Dzulqa Arijal Edidas , Edidas Eko Indrawan Elfi Tasrif Evan Prakarsa Fadhilah Fadhilah Fadhilah Ikhsan Dinul Fadhli Ranuharja Fajero Tiffano Fattahul Rizki Fauza, Anna Niska Febri Prasetya Fiki Efendi Fikri Fadillah Fikrul Aziz Fitrah Qalbina Fitri Nur Nazmi Ganefri . Gema Pratama Mahadi Putera Ginting, Erika Fahmi Hamdani Hamdani Hansi Effendi Hasan Maksum Hendrik Swandi Herisvan Hendra Hermi Zaswita Indra Mandala Putra Irma Yulia Basri Jalius Jama Jasman Jonni Mardizal Junil Adri Khofifah Alawyah M Iqbal M. Alizar M. Yasep Setiawan Marsono Marsono Martias Martias Maryatun Kabatiah Masyuni Hutasuhut Meri Yolanda Mhd Safiq Adzkia MIHAEL KRIKORIAN Muhammad Adri Muhammad Adri Muhammad Akhbar Muhammad Anwar Muhammad Ichsan Muhammad Ikhsan Koto Muhammad Iqbal Muhammad Ravi Muhammad Ravi Albasyit Mulianti Muslim Muslim Nadia Erwanda Nadia Suci Rahma Putri Nelvi Erizon Niki Prasetio L Nisaul Latifah Atta Nizwardi Jalinus Nizwardi Zalinus Nofri Helmi Nofri Helmi Helmi Nurdin Hendri Nurhasan Syah Nurtjahyadi Nurtjahyadi Oki Darwis Prima Putra OSKAH DAKHI Purwanto, Wawan Purwantono Purwantono Putra, Randi Purnama Raju Rahmadian Ramadhan, Muhammad Sabir Randa M Remon Lapisa Reti Handayani Ridwan Ridwan Rifelino Rifelino Riki Saputra Riky Satria Risfendra Risfendra Rizki Hardian Sakti Rizky Ema Wulansari Robby Mulya Rodesri Mulyadi Rofi Chandra Ronal Watrianthos Rosmidah Hasibuan Salsabila, Unik Hanifah Simatupang, Wakhinuddin Sri Riski Putri Primandari Sri Rizki Putri Primandari Sukardi, Sukardi Suparno Suparno Suwondo Suwondo Syaflan Sandi Harta Putra Syafni Yulia Devani Syahrial Syahrial Syahril Syahril Syaiful Islami Toto Sugiarto Toto Sugiarto Usmeldi Usmeldi Vicky Prasetyo Wagino Waskito Waskito Waskito Wella Yanmita Syahri Willy Vernando Willyardo Putra Ramon Winaldi Alfonis Winda Denita Wirda Yetti Yanda Veony Pratama Yanita, Merita Yanto, Doni Tri Putra Yoga Andika Yogi Refvan Chaniago Yohanni Syahra Yolanda Ferdani Melinton Yolanda Putri Yolanda Tamara Yolli Fernanda Yufrizal Yufrizal Yuke Permata Lisna Zainal Abadi