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All Journal Bulletin of Electrical Engineering and Informatics Ecos-Preneurs: Alahyan Jurnal Pengabdian Masyarakat Multidisiplin
Raisha Zuhaira Dongoran
Universitas Islam Negeri Sumatera Utara
Economics, Econometrics & Finance Electrical & Electronics Engineering Nursing Public Health Social Sciences Other

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Peran Program Teaching in Society Dalam Meningkatkan Motivasi Belajar Anak-Anak Desa Pasir Permit Mara Samin Lubis; Raisha Zuhaira Dongoran; Iren Salsalina Br Ginting
Alahyan Jurnal Pengabdian Masyarakat Multidisiplin Vol. 2 No. 2 (2024): (Nopember)
Publisher : PT. Alahyan Publisher Sukabumi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61492/ecos-preneurs.v2i2.210

Abstract

Learning motivation is an important factor in educational success, especially in rural areas where access to educational resources is often limited. One approach to overcome this problem is through a teaching program that involves student participation, such as what is done in the Real Work Lecture (KKN). The Teaching in Society program, which is part of KKN, seeks to help increase children's motivation to learn through engaging and participatory teaching. This study examines how the 19 KKN Group is able to contribute to increasing the learning motivation of children in Pasir Permit Village through this program.
Robust optimization model for capacitated vehicle routing problem in waste transportation under demand uncertainty Hendra Cipta; Rina Widyasari; Raisha Zuhaira Dongoran
Bulletin of Electrical Engineering and Informatics Vol 15, No 4: August 2026
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/eei.v15i4.11274

Abstract

Urban waste transportation systems often experience inefficiencies due to uncertainty in daily waste generation, leading to vehicle overloads, increased operational costs, and environmental impacts. This study proposes a robust optimization model for the capacitated vehicle routing problem (RO-CVRP) to explicitly address demand uncertainty in municipal waste collection. A budgeted uncertainty parameter gamma is incorporated to control the level of protection against worst-case deviations. Initial routes are generated using the Clarke-Wright savings (CWS) algorithm and subsequently evaluated within a robust optimization framework. Computational experiments are conducted using real data from temporary disposal sites (TPS) in Tanah Enam Ratus Subdistrict Medan City, with a vehicle capacity of 10 m³. The results show that higher gamma values produce more conservative routing solutions, increasing the number of vehicles while reducing the risk of capacity violations. Price of robustness (PoR) analysis highlights the trade-off between transportation cost and reliability, confirming the model’s effectiveness for resilient waste logistics planning.
Co-Authors Hendra Cipta Iren Salsalina Br Ginting Mara Samin Lubis Rina Widyasari