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All Journal Jurnal Rekayasa Sistem Industri IJOG : Indonesian Journal on Geoscience JGE (Jurnal Geofisika Eksplorasi) ABDIMAS SILIWANGI Jurnal Geofisika Community Development Journal: Jurnal Pengabdian Masyarakat Jurnal Pengabdian UNDIKMA LEMBARAN PUBLIKASI MINYAK DAN GAS BUMI
Waskito Pranowo
Geophysical Engineering, Faculty Of Exploration And Production Technology Universitas Pertamina, Jakarta,
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Chemical Engineering, Chemistry & Bioengineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Nursing Physics Public Health Social Sciences Other

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Estimasi Keandalan Sistem Mekanikal Dependen Menggunakan Fungsi Copula Ramadhani, Adhitya Ryan; Pranowo, Waskito
Jurnal Rekayasa Sistem Industri Vol. 13 No. 2 (2024): Vol. 13 No. 2 (2024): Jurnal Rekayasa Sistem Industri
Publisher : Universitas Katolik Parahyangan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26593/jrsi.v13i2.7219.103-112

Abstract

This paper addresses the challenge of assessing the reliability of complex mechanical systems where components are inherently correlated in their failure modes. Traditionally, the assumption of independence among these components has been employed, but it often fails to capture the real-world complexities. To overcome this limitation, copula functions are introduced as a robust methodology for modeling the dependent relationships between correlated variables within mechanical systems. This paper aims to demonstrate the utility of copulas in estimating system reliability while accounting for these dependencies. The results reveal that the Clayton copula emerges as the most suitable model for representing dependence in such systems. Importantly, the reliability estimates obtained through copula-based methods not only reflect the complex interdependencies accurately but also align with the principles of the boundary theory of reliability. This research underscores the potential of copula-based reliability estimation as a valuable alternative, offering a more comprehensive and precise assessment of reliability in complex mechanical systems and holding significant promise for practical engineering applications. This framework allows the consideration of dependence among the observed variables that is usually overlooked in engineering practice.
Empowering the Community through Household Waste Source Separation Education in Barengkok Village: A Pretest–Posttest Evaluation Ramadhani, Adhitya Ryan; Kadarno, Purwo; Pradanawati, Sylvia Ayu; Riyandwita, Byan Wahyu; Barrinaya, Muhammad Akbar; Pranowo, Waskito; Nugroho, Herminarto
Jurnal Pengabdian UNDIKMA Vol. 7 No. 2 (2026): May (IN PRESS)
Publisher : LPPM Universitas Pendidikan Mandalika (UNDIKMA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/jpu.v7i2.17517

Abstract

This community service program aims to enhance the knowledge and skills of residents in Barengkok Village regarding household waste segregation at the source, particularly the separation of organic and inorganic waste, as well as basic on-site processing of organic waste at the household level. The implementation method employed a participatory educational approach through training sessions involving adult residents as the primary participants. The program integrated participatory instruction, hands-on demonstrations, including the establishment of a two-bin waste separation system and basic composting techniques, and pre- and post-assessments consisting of seven waste literacy items. Descriptive statistics indicated consistent post-session improvement across all items, with the most substantial gains observed in waste categorization and organic waste management skills. Participant surveys revealed very high perceived relevance and satisfaction, suggesting that the program was well received by the community. This initiative provides a practical and cost-effective model that combines clear procedures with simple supporting tools, including designated two-bin kits and a laminated kitchen guide, enabling households to operate more independently despite downstream collection limitations. The findings also suggest the need for a brief 4–6-week follow-up period, including bin placement monitoring, contamination assessment, and initial compost trials, as well as a strategy for village-level institutionalization through community advocates and a regular buy-back schedule for clean recyclables.
Co-Authors Adhitya Ryan Ramadhani Agus Abdullah Akbar Barrinaya Alda Ressa Nurdianingsih Alissa Bilqis Barrinaya, Muhammad Akbar Dicky Ahmad Zaky Edwin Brilliant Egie Wijaksono Erwin Setiawan Henry Julois Pakpahan Hibatullah, Muhammad Irsyad Humbang Purba Ida Herawati Iktri Madrinovella Intan Oktafiani Iskandar, Yelita Anggiane Kadarno, Purwo Krisdanyolan Simarmata Misbahudin Misbahudin Muhammad Irsyad Hibatullah Muhammad Lubis Mulyasari, Farah Nugroho, Herminarto Pakpahan, Henry Julois Purba, Humbang Rafif Rajendra Widya Daniswara Randi Fermana Riyandwita, Byan Wahyu Sandy Kurniawan Suhardja Sanggeni Gali Wardhana Sanggeni Gali Wardhana Simarmata, Krisdanyolan Sonny Winardhi Sonny Winardhi Sthevanie Dhita Sudrazat Sudrazat, Sthevanie Dhita Susanty, Meredita Sylvia Ayu Pradanawati Vikaliana, Resista Wardhana, Sanggeni Gali Widyanti, Sari Wijaksono, Egie