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Inventory Analysis of Packed Red Cells Components Using Monte Carlo Simulation Fasyabib, Fachrul Yazid; Qisthani, Nabila Noor; Kasanah, Yulinda Uswatun
Jurnal INTECH Teknik Industri Universitas Serang Raya Vol. 11 No. 1 (2025): Juni
Publisher : Universitas Serang Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30656/intech.v11i1.10388

Abstract

This study analyzes Packed Red Cells (PRC) inventory management at PMI Banyumas using a Monte Carlo simulation to evaluate different stock management strategies. The initial model shows a significant shortage of blood supply. Two alternative scenarios were simulated to address this issue: adding 55 additional units from external sources and increasing donor participation by 15%. The simulation results demonstrate that these strategies effectively reduce the shortage from 62 units to just 5 units without increasing expired inventory while achieving the lowest total cost of Rp. 9,927,682. These findings highlight that increasing donor participation offers the best performance in balancing supply and demand. This study provides simulation-based strategic recommendations that other PMI branches can replicate to improve bloodstock management, reduce shortages, and maintain optimal service levels.
Daily Container Volume Throughput Forecasting at Container Terminal Using Long-Short Term Memory (LSTM) Recurrent Neural Network Kasanah, Yulinda Uswatun; Miftahol Arifin; Famila Dwi Winati; Fatbayani
Jurnal E-Komtek (Elektro-Komputer-Teknik) Vol 9 No 1 (2025)
Publisher : Politeknik Piksi Ganesha Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37339/e-komtek.v9i1.2214

Abstract

Container throughput is an important indicator for measuring the efficiency of a kontainer terminal. Kontainers that enter and exit are those transported to and from the terminal, respectively. Kontainers are stacked in the kontainer yard before they leave the terminal. Handling these kontainers accounts for a major workload at the terminal. Therefore, accurate short-term forecasting of daily kontainer gate-in and Gate-Out at a kontainer terminal is crucial for operational planning. While most forecasts are made at the strategic level of overall kontainer throughput, this study focuses on the daily kontainer gate-in and Gate-Out quantities with a case study at the TPKNM Makassar Kontainer Terminal. The study results show that the Epoch for each training set and performance metrics for each feature are 10, 50, and 100. Based on this, the difference in prediction performance with different epoch sizes is quite significant. The larger the Epoch, the smaller the MSE level.
Bahasa Inggris Kasanah, Yulinda Uswatun; Hidayatuloh, Syarif; Qisthani, Nabila Noor
JURNAL INFOTEL Vol 16 No 2 (2024): May 2024
Publisher : LPPM INSTITUT TEKNOLOGI TELKOM PURWOKERTO

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20895/infotel.v16i2.1130

Abstract

Handling the distribution of broilers has special attention. The distribution of poultry should be done in the shortest possible time to decrease broiler mortality rate. Real-time monitoring of poultry distribution is expected to control the stress level of poultry due to the length of travel time by limiting the delivery time window. In order to control the distribution time and distance, it is necessary to integrate vehicle routing and mobile technology. By adopting the digital twin-enabled framework model and combining it with Google APIs, web and mobile applications are generated to accommodate the real-time traveling time, vehicle capacity, and pickup-delivery activity. There is a significant change in travel distance in one delivery cycle after implementing the developed technology. The total travel distance was 493 KM decreased to 436 KM, which means a decrease of 11.5% from the initial total travel distance. In addition, there was a change in the total penalty time (delay) from 102 minutes to 85 minutes, decreasing delay time by 16.6%. This mobile technology's development can indirectly increase vehicle utilization by not overloading the vehicle capacity and reducing vehicle travel distance.
Implementasi Sistem Single Minutes Exchange of Dies untuk Perbaikan Setup Time pada Perusahaan Otomotif Kasanah, Yulinda Uswatun; Suryadhini , Pratya Poeri
Factory Jurnal Industri, Manajemen dan Rekayasa Sistem Industri Vol. 4 No. 3 (2026): Edisi April
Publisher : Ilmu Bersama Center

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56211/factory.v4i3.1407

Abstract

Efisiensi proses setup merupakan faktor krusial dalam meningkatkan produktivitas dan fleksibilitas sistem produksi, terutama pada industri otomotif yang memiliki kebutuhan responsivitas tinggi terhadap variasi permintaan. Penelitian ini bertujuan untuk menganalisis dan mengurangi setup time pada workstation curing melalui penerapan metode Single Minute Exchange of Die (SMED). Metode penelitian meliputi pengamatan langsung, time study, analisis aktivitas internal dan eksternal, serta identifikasi pemborosan menggunakan prinsip lean manufacturing. Setelah kondisi eksisting dipetakan, langkah-langkah SMED diterapkan, termasuk pemisahan aktivitas internal–eksternal, konversi aktivitas internal menjadi eksternal, serta penyederhanaan dan standardisasi proses setup. Hasil penelitian menunjukkan bahwa implementasi SMED mampu mereduksi internal setup time sebesar 128,48 menit dan external setup time sebesar 3,08 menit. Reduksi signifikan diperoleh melalui konversi aktivitas seperti green tire setup dan melakukan proses pemanasan mold awal, serta persiapan peralatan yang berkontribusi terhadap penghematan waktu sebesar 63,8 menit. Selain itu, optimalisasi proses dilakukan melalui minimisasi perpindahan operator, eliminasi adjustment yang tidak diperlukan, serta penerapan parallel setup dengan menambah asisten operator, masing-masing memberikan pengurangan waktu 3,08 menit, 4,32 menit, dan 66,64 menit. Secara keseluruhan, penelitian ini membuktikan bahwa integrasi SMED pada proses curing tidak hanya menurunkan waktu non-productive secara substansial mencapai 33,77%, tetapi juga meningkatkan kelancaran aliran produksi dan mendukung pencapaian manufacturing excellence.