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All Journal Jurnal Rekayasa dan Manajemen Sistem Industri Rekayasa Mesin Journal of Engineering and Management in Industrial System Journal of Industrial Engineering Management Industri Inovatif : Jurnal Teknik Industri Jurnal Bio-Geo Material Dan Energi
Sri Widiyawati
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Humanities Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Mathematics Mechanical Engineering

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Journal : Journal of Engineering and Management in Industrial System

 1 
SOLVING LARGE SCALE TRANSPORTATION PROBLEM IN FERTILIZER DISTRIBUTION TO MINIMIZE TRANSPORTATION COST Angga Akbar Fanani; Arif Rahman; Astuteryanti Tri Lustyana; Sri Widiyawati
Journal of Engineering and Management in Industrial System Vol 10, No 1 (2022)
Publisher : Badan Penerbit Jurnal, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jemis/2022.010.01.3

Abstract

Indonesia is agricultural country which have high degree of dependency to the fertilizer availability, it is because fertilizer has important role for the land fertility. Fertilizer is needed by the farmers all the time, from the initial period of planting the crop to the harvest period. This condition requires the fertilizer industry to be able to deliver fertilizer exactly when fertilizer is needed. The complexity of the transportation problem is indicated by the number of nodes in the model that represent both source and destination. In the distribution of fertilizer, the number of sources is relatively small, but the number of destinations is very large, where the number reaches 50 destination points. In solving large scale transportation complex problems, modeling techniques using Linier Programming are needed. Fertilizer demands are fulfilled from 42 buffer warehouses, and the optimal allocation for petrochemical distribution is supplied by 47 production partners. Based on the results of the calculation process using linier programming, the optimal distribution cost is 939,854,960.00 rupiahs. Meanwhile, the initial cost of distribution is IDR 1,032,267,660.00. There was a decrease of 92,412,700.00 rupiahs or about 9%. Optimization of the distribution process is also marked by the decrease in the number of production partners needed to meet the needs of 42 buffer warehouses. In the initial distribution, 56 production partners sent their products, after the calculation process only 47 production partners were needed.
AN ANALYSIS OF INDONESIAN MILKFISH UPSTREAM SUPPLY CHAIN: SYSTEM DYNAMICS APPROACH Eunike, Agustina; Sugiono, Sugiono; Tama, Ishardita Pambudi; Widiyawati, Sri; Pramono, Galih D.A; Yuniarti, Rahmi
JEMIS (Journal of Engineering & Management in Industrial System) Vol 9, No 1 (2021)
Publisher : Industrial Engineering Department, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Milkfish is common aquaculture product consumed by Indonesian people. However, the ponds of milkfish in Indonesia manage by Small Medium Enterprises scale of farmers which have problems in sustaining the business. This study proposes supply chain analysis in the upstream level to develop strategic to improve the profit of milkfish farmers. Milkfish supply chain is a network of many actors that work together to create and deliver milkfish and its culinary products to the end-user. This paper defines the partnership strategies between the farmers and suppliers as well as the support from government as facilitator and regulator. Moreover, system dynamic approach analyses the scenarios of partnership to outline the benefit obtain by the milkfish supply chain. Finally, the simulation results recommend the partnership to fertilizer supplier will give significant increase in profit of the milkfish farmers.
Co-Authors AA Sudharmawan, AA Agustina Eunike Angga Akbar Fanani Astuteryanti Tri Lustyana Ceria Farela Mada Tantrika Chrizandita YR, Maria Dwi Hadi Sulistyarini Ishardita Pambudi Tama Nazarudin Oyong Novareza Pramono, Galih D.A Putro, Wisnu Wijayanto Rahmi Yuniarti Ratih Ardia Sari Rio Prasetyo Lukodono Sebtian Assyahlafi Solly Aryza Sugiono Sugiono