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All Journal Journal La Bisecoman Journal Industrial Engineering and Management (JUST-ME) Journal of Engineering Science and Technology Management Journal of Green Engineering for Sustainability
Nur, Rahmi M
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Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering

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STRATEGI PERAMALAN PERMINTAAN PUPUK NPK UNTUK OPTIMALISASI STOK DI PT. XYZ Foci, Nia Arfina; Muluk, Anisa Jasmiarlita; Nur, Rahmi M; Zai, Yovita Yulia M; Salsabila, Syafira; Riyantori, Refki
Journal Industrial Engineering and Management (JUST-ME) Vol. 5 No. 02 (2024): Journal Industrial Engineering and Management (JUST-ME)
Publisher : Program Studi Teknik Industri Fakultas Teknik Universitas Islam Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47398/justme.v5i02.75

Abstract

Penjualan pupuk NPK, khususnya grade 13 8 27 4 + 0,5B, terus meningkat seiring dengan meningkatnya kesadaran petani akan pentingnya pemupukan yang efektif dan efisien. PT. XYZ, sebagai salah satu anak perusahaan AB Group Indonesia yang bergerak di bidang industri pupuk, menghadapi tantangan dalam memenuhi permintaan akibat ketidaksesuaian antara stok yang tersedia dengan permintaan. Selain itu, ketidaktepatan pengelolaan bahan baku dan kurangnya ketersediaan karung turut memperburuk situasi stok di gudang. Penelitian ini bertujuan untuk meramalkan permintaan pupuk NPK grade 13 8 27 4 + 0,5B guna mengoptimalkan pengelolaan stok. Metode yang digunakan meliputi Single Moving Average (SMA) dan Single Exponential Smoothing (SES), dengan pengukuran kesalahan melalui Mean Absolute Deviation (MAD), Mean Square Error (MSE), dan Mean Absolute Percentage Error (MAPE). Hasil penelitian menunjukkan bahwa metode SES dengan α = 0,6 menghasilkan tingkat kesalahan terkecil, menjadikannya metode yang paling tepat untuk diaplikasikan di PT. XYZ. Penelitian ini diharapkan dapat mendukung perencanaan strategis perusahaan dalam mengelola persediaan dan memastikan kelancaran distribusi pupuk.
The Effect of Discount Flash Sale on Online Impulsive Buying of Mercubaktijaya University Students at Shopee Marketplace M. Zai, Yovita Yulia; Nur, Rahmi M; Hafiza, Siti Nur
Journal La Bisecoman Vol. 6 No. 1 (2025): Journal La Bisecoman
Publisher : Newinera Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37899/journallabisecoman.v6i1.1942

Abstract

The development of digital technology is currently triggering an online shopping model characterized by the development of marketplaces and online marketing strategies to attract consumer interest. This study aims to determine whether there is an influence between the marketing strategy of the Shopee discount flash sale marketplace on online impulsive buying. This research is a quantitative study where the sample determination uses Non-Probability Sampling with Purposive Sampling technique to Mercubaktijaya University Padang students. Data was obtained through a questionnaire distributed with a sample size of 100 respondents. The analysis technique uses multiple linear regression and hypothesis testing using the F test and t test. The data was processed using SPSS (Statistical Package for the Social Sciences) software version 26. The results showed that the correlation between the discount flash sale variable and online impulsive buying showed a positive correlation relationship with a value of 0.546 with a correlation strength level of moderate. There is an influence between the discount flash sale variable on online impulsive buying. This can be seen in the value of t count) (2.128) > t table (1.98422), and the significance value (0.036) <0.05. When viewed from the coefficient beta value, the discount flash sale variable has a contribution in online impulsive buying of 0.270 which shows a unidirectional relationship between the discount flash sale variable and online impulsive buying, which means that if the activity of the discount flash sale increases, it will make impulsive buying activity on Shopee increase as well.
Evaluation of Raw Material Management in the Warehouse Using the Shared Storage Method at PT X Rini Syahfitri; Zai, Yovita Yulia M; Nur, Rahmi M; Suryani, Inang
Journal of Engineering Science and Technology Management (JES-TM) Vol. 5 No. 1 (2025): Maret 2025
Publisher : Journal of Engineering Science and Technology Management

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jestm.v5i1.211

Abstract

PT X yang berlokasi di Padang merupakan perusahaan yang bergerak di bidang produksi pakan ternak, didukung oleh gudang bahan baku yang berperan krusial dalam efisiensi operasionalnya. Penelitian ini digagas karena masih terdapat inefisiensi pada tata letak gudang saat ini, khususnya penempatan bahan baku yang kurang tepat dan tidak dikelompokkan berdasarkan jenisnya. Tujuan utama penelitian ini adalah untuk meningkatkan efisiensi pengambilan bahan baku dan mengoptimalkan tata letak gudang dengan cara mengatur bahan baku berdasarkan klasifikasi dan frekuensi pemakaiannya. Metode shared storage digunakan untuk memungkinkan alokasi penyimpanan yang fleksibel, sehingga bahan-bahan dengan karakteristik yang berbeda dapat ditempatkan di area yang sama berdasarkan prioritas pemakaian. Pengumpulan data dilakukan melalui wawancara dengan petugas gudang dan pengamatan langsung terhadap aliran material dan praktik penyimpanan. Hasil penelitian menunjukkan bahwa bahan baku yang sering digunakan disimpan terlalu jauh dari area produksi, sehingga mengakibatkan waktu pengambilan yang lama dan penumpukan. Tata letak yang diusulkan merekomendasikan reposisi bahan baku tersebut lebih dekat dengan pintu masuk produksi, dengan jarak optimal berkisar antara 16,5 hingga 125,5 meter. Desain ulang tata letak ini bertujuan untuk mengurangi waktu penanganan material dan meningkatkan efisiensi gudang secara keseluruhan melalui pengaturan yang sistematis berdasarkan jenis dan frekuensi pemakaian.
Analysis of Pharmacy Service Performance Improvement for BPJS Patients Using The Lean Method at XYZ Hospital Nur, Rahmi M; Zai, Yovita Yulia M.; Iskandar, Habibillah
Journal of Engineering Science and Technology Management (JES-TM) Vol. 5 No. 1 (2025): Maret 2025
Publisher : Journal of Engineering Science and Technology Management

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jestm.v5i1.217

Abstract

Pharmacy services are a critical support unit within the healthcare system of hospitals, particularly for BPJS (Indonesia's National Health Insurance) patients, whose numbers continue to rise. However, pharmacy service processes often face several challenges, including prolonged waiting times, inefficient queues, lengthy initial registration procedures, and drug stock mismatches. This study aims to analyze and propose performance improvements in pharmacy services for BPJS patients at XYZ hospital using a Lean approach. The method employed in this research is Value Stream Mapping (VSM) to map out the service flow and identify waste. Data were collected through direct observation, interviews, and documentation, covering initial process mapping, service time for each process activity, and the number of prescriptions served monthly. The analysis revealed several non-value-adding activities affecting service efficiency, such as high waiting times, inefficient staff movements, drug stockouts, and disorganized drug storage. After implementing improvements based on Lean principles, average patient waiting time decreased, with compounding drug service time reduced from 23 to 20 minutes and non-compounded drug service time reduced from 17 to 14 minutes. The study concludes that applying the Lean method can significantly enhance the performance of pharmacy services. Strategic recommendations are also provided to maintain work efficiency and ensure continuous quality improvement at XYZ Hospital.
Forecasting Sales of Salisil Talk Wangi 45 gr Using the Double Moving Average Method at PT X Nur, Rahmi M; Riyantori, Refki; Musharyadi, Feri
Journal of Engineering Science and Technology Management (JES-TM) Vol. 5 No. 1 (2025): Maret 2025
Publisher : Journal of Engineering Science and Technology Management

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jestm.v5i1.224

Abstract

PT X is a pharmaceutical manufacturing company producing cosmetics, household health supplies, medicines, and quasi-drugs. During the internship period of 8 months, various aspects of agro-industrial logistics were observed, including demand planning. The study focused on addressing recurring issues of stockouts of talcum powder, specifically Salisil Talk Wangi 45 grams, caused by inaccurate forecasting and manual estimation methods. To resolve this, the Double Moving Average method was applied to forecast demand for the product. The results showed that for the Blue variant of Salisil Talk Wangi 45 gr, the forecasting error was MAD = 1.236 and MAPE = 7%. For the Yellow variant, MAD = 1.109 and MAPE = 7%, and for the Green variant, MAD = 1.109 and MAPE = 8%. These results suggest that the Double Moving Average method is effective in supporting raw material planning for better production continuity.
Analisis Implementasi Reverse Logistics untuk Meningkatkan Efisiensi Biaya dalam Pengelolaan Limbah Medis di Klinik Kesehatan Foci, Nia Arfina; Nur, Rahmi M; Salsabila, Syafira; Yasin, Muhamad; Munanda, M Arif
Greeners: Journal of Green Engineering for Sustainability Vol 3 No 01 (2025): Journal of Green Engineering for Sustainability
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat Universitas Universal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63643/jges.v3i1.301

Abstract

Medical waste management is a major challenge in the health system, especially in ensuring cost efficiency while minimizing environmental impacts. This study aims to analyze the relationship between the application of reverse logistics and the cost efficiency of medical waste management in health clinics. The methodology used is a quantitative approach with a sample of 36 respondents involved in medical waste management. Data was collected using a questionnaire and analyzed using the Chi-Square test to evaluate the relationship between variables. The research results show a significant relationship between the implementation of reverse logistics and cost efficiency, where better implementation can substantially reduce operational expenditure. The conclusions of this research indicate that medical waste management through reverse logistics effectively increases cost efficiency, and supports environmental sustainability. The practical implications of these findings can be a reference for health clinic managers in designing more efficient waste management strategies.
Co-Authors Foci, Nia Arfina Hafiza, Siti Nur Iskandar, Habibillah M. Zai, Yovita Yulia Muluk, Anisa Jasmiarlita Munanda, M Arif Musharyadi, Feri Rini Syahfitri Riyantori, Refki Salsabila, Syafira Suryani, Inang Yasin, Muhamad