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All Journal ZERO : Jurnal Sains, Matematika dan Terapan Desimal: Jurnal Matematika Jurnal Pendidikan Matematika (JUDIKA EDUCATION) MAJAMATH: Jurnal Matematika dan Pendidikan Matematika M A T H L I N E : Jurnal Matematika dan Pendidikan Matematika Vygotsky: Jurnal Pendidikan Matematika dan Matematika Imajiner: Jurnal Matematika dan Pendidikan Matematika MES: Journal of Mathematics Education and Science Jurnal Absis : Jurnal Pendidikan Matematika dan Matematika Proximal: Jurnal Penelitian Matematika dan Pendidikan Matematika Community Development Journal: Jurnal Pengabdian Masyarakat Journal of Computer Networks, Architecture and High Performance Computing Euler : Jurnal Ilmiah Matematika, Sains dan Teknologi Journal of Mathematics and Scientific Computing With Applications Jurnal Informatika Teknologi dan Sains (Jinteks) Abdimas Indonesian Journal Bulletin of Applied Mathematics and Mathematics Education DEVICE : JOURNAL OF INFORMATION SYSTEM, COMPUTER SCIENCE AND INFORMATION TECHNOLOGY Jurnal Garuda Pengabdian Kepada Masyarakat Jurnal Pengabdian Mitra Masyarakat Advance Sustainable Science, Engineering and Technology (ASSET)
Rina Filia Sari, Rina Filia
Fakultas Sains dan Teknlogi UIN Sumatera Utara Medan
Religion Agriculture, Biological Sciences & Forestry Humanities Chemistry Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Public Health Social Sciences Other

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SIMULASI PENGENDALIAN PERSEDIAAN ALAT TULIS KANTOR PADA DINAS PERKEBUNAN DAN PETERNAKAN PROVINSI SUMATERA UTARA DENGAN METODE MONTE CARLO Sari, Rina Filia; Aprilia, Rima; Widyasari, Rina; Afnaria, Afnaria; Suhaimi, Syech; Putri, Chindy Aulia
Jurnal Pengabdian Mitra Masyarakat Vol 3, No 2 (2024): Edisi Maret
Publisher : Universitas Islam Sumatear Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/jurpammas.v3i2.9284

Abstract

In a Government Agency, office stationery supplies are an absolute necessity. The provision of adequate office stationery will facilitate performance. This study aims to predict the demand for office stationery using Monte Carlo Simulation. Monte Carlo is a numerical analysis method that uses random number samples. The data used in this study are primary data in the form of the number of stock items and the number of requests for goods from January to December 2023. The accuracy result using the Monte Carlo method for Year 2024 is 91.78%. This shows that the Monte Carlo method simulation can be used to predict the demand for stationery for the following year.
OPTIMISASI RUTE PENGAMBILAN VAKSIN RABIES MENGGUNAKAN BACKWARD RECURSIVE EQUATION Sari, Rina Filia; Putri, Chindy Aulia; Maysarah, Maysarah; Nurfitriah, Ratri; Adawiyah, Robiyatul
Community Development Journal : Jurnal Pengabdian Masyarakat Vol. 5 No. 2 (2024): Volume 5 No. 2 Tahun 2024
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/cdj.v5i2.26408

Abstract

Vaksin merupakan sebuah racikan atau bahan yang digunakan untuk menstimulus antibodi agar bisa lebih kebal terhadap suatu penyakit. Penyakit ini disebabkan oleh gigitan hewan yang menderita rabies yang ditularkan pada manusia. Di Sumatera Utara pemberian vaksin rabies ini diberikan kepada dinas perkebunan dan peternakan Dinas ini akan mendapatkan kiriman vaksin rabies dari pemerintah pusat di Jakarta. Dikarenakan padatnya pekerjakan membuat bidang tersebut harus menghemat waktu agar semua pekerjaan dapat dilakukan dengan baik. Model Backward Recursive Equation merupakan salah satu model yang ada di dynamic programming. Program Dinamis (dynamic programming) merupakan metode pemecahan masalah dengan cara menguraikan solusi menjadi sekumpulan (stage). Dinas Ketahanan Pangan dan Peternakan ? Nasional Sport ? Kopi Wae Medan ? Simpang Raya Sakumoring Setia Budi ? Universitas Quality ? JNT Express Simpang Pos ? Dinas Perkebunan dan Peternakan Pemerintah Provinsi Sumatera Utara Dengan jarak 13,3 km.
Optimizing the use of sewing materials to maximize production output Rakhmawati, Fibri; Rifki, Mhd Ikhsan; Husein, Ismail; Cipta, Hendra; Lubis, Riri Syafitri; Sari, Rina Filia
Abdimas Indonesian Journal Vol. 5 No. 2 (2025)
Publisher : Civiliza Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59525/aij.v5i2.1043

Abstract

This Community Service Program aims to optimize the use of sewing materials to maximize production output at Rumah Jahit Nila through the application of a linear programming model in the allocation and use of sewing materials in planning and maximizing production output. The implementation methods include mapping processes and data requirements and formulating a linear programming model relevant to the scale of Nila Sewing House MSMEs, as well as training and live demonstrations using QM as software to determine optimization solutions. The evaluation was conducted on 15 participants using a 1–4 Likert scale instrument with four assessment indicators, namely, training content, presenter's subject-matter expertise, event facilities, and benefits of the program. Descriptive analysis showed an overall average of 3.43 on a scale of 4, with a percentage level of 85.8%, which is in the Very Good category. In order, the indicator achievements are Presenter’s Subject-Matter Expertise = 3.53 (88.33%), Benefits of the Program = 3.47 ( 86.67%), Training Content = 3.40 (85.00%), and Event Facilities = 3.33 (83.33%). These results confirm that the competence of the speakers and the relevance of the benefits are the main strengths, while the content and facilities of the activities are areas for priority improvement. This program has successfully improved participants' technical capacity in modeling and implementing linear program-based raw material optimization, while also providing a foundation for operational implementation to reduce waste and increase throughput.
Analisis Model Seirs terhadap Kecanduan Gadget Anak Usia Dini dengan Metode Runge-Kutta Orde-5 Suratna, Ayu Annisa; Cipta, Hendra; Sari, Rina Filia
MAJAMATH: Jurnal Matematika dan Pendidikan Matematika Vol. 6 No. 1 (2023): Vol 6 No 1 Maret 2023
Publisher : Prodi Pendidikan matematika Universitas Islam Majapahit (UNIM), Mojokerto, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36815/majamath.v6i1.2470

Abstract

Penelitian ini membahas tentang kecanduan gadget yang dialami oleh anak usia dini menggunakan model matematika SEIRS, yang kemudian dianalisis menggunakan Runge-Kutta Orde ke-5. Hasil dari penelitian ini adalah model matematika dS/dt=-0.14SI+0.03R, S(0)=5; dE/dt=0.14SI-0.012E, E(0)=22; dI/dt=0.006E-0.01I, I(0)=4; dR/dt=0.01I+0.012E-0.03R, R(0)=19. Dari model tersebut dihasilkan nilai iterasi dengan menggunakan Metode Runge-Kutta orde ke 5 pada waktu t=1 sampai t=3 dan ukuran langkah h=1 . Solusi model matematika SEIRS menghasilkan iterasi yang mengalami kenaikan dan penurunan. Namun, Metode Runge-kutta dinyatakan efektif dalam penyelesaian Model SEIRS karena angka galat yang dihasilkan mendekati nilai 0.
Panel Data Regression Modeling of North Sumatra Province's Gross Regional Domestic Product for 2019-2023 Maylani, Ester; Sari, Rina Filia
Vygotsky: Jurnal Pendidikan Matematika dan Matematika Vol. 7 No. 2 (2025): Vygotsky: Jurnal Pendidikan Matematika dan Matematika
Publisher : Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/voj.v7i2.1279

Abstract

Regional economic growth is influenced by various factors that need to be analyzed accurately to support the formulation of effective policies. This study aims to analyze the influence of economic factors on the Gross Regional Domestic Product (GRDP) in North Sumatra Province. The main issue raised is the need for an appropriate model to understand the relationship between economic variables and GRDP. This study uses panel data from 33 districts/cities during the period 2019–2023 obtained from official sources. Through Chow, Hausman, and Lagrange Multiplier tests, the Fixed Effect model was selected. The results indicate that population size, number of poor people, and Human Development Index (HDI) significantly influence RDP.
Optimasi Penjadwalan Produksi Menggunakan Metode Palmer pada Mulia Genteng Beton Kharisma, Alfinda; Sari, Rina Filia; Hendra Cipta
Proximal: Jurnal Penelitian Matematika dan Pendidikan Matematika Vol. 9 No. 1 (2026): Volume 9 Nomor 1 Tahun 2026
Publisher : Universitas Cokroaminoto Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30605/proximal.v9i1.7192

Abstract

Penjadwalan produksi yang optimal sangat penting bagi perusahaan manufaktur untuk menghindari penumpukan barang dan keterlambatan distribusi. Penelitian ini bertujuan mengoptimalkan penjadwalan produksi paving block pada Mulia Genteng Beton menggunakan metode Palmer. Data yang digunakan mencakup waktu proses tiap job, jumlah mesin, serta data permintaan bulan September 2022. Metode penelitian yang digunakan adalah metode kuantitatif dengan pendekatan eksperimen yang bertujuan untuk mengoptimalkan penjadwalan produksi pada sistem flowshop. Adapun tahapan dalam penelitian ini meliputi uji kelayakan data, perhitungan waktu baku, perhitungan dengan menggunakan metode Palmer serta perhitungan makespan. Hasil penelitian menunjukkan urutan job optimal adalah J2–J1–J3 dengan makespan sebesar 381.624,66 detik (±106 jam). Hasil ini sama dengan perusahaan namun dengan pendekatan yang lebih sistematis. Penelitian ini berkontribusi dalam memberikan rekomendasi metode penjadwalan sederhana namun efektif pada industri paving block.
Co-Authors Adawiyah, Robiyatul Afnaria, Afnaria Alamsyah, Arif Andini, Qonita Putri Anggitasyah, Debi Annisa, Nur Alvi Banurea, Yana Wiranta Fazariani, Nabila Hasibuan, Hani Maulida Hendra Cipta Hutagalung, Alya Azhrah Ismail Husein, Ismail Khairun Nisa Kharisma, Alfinda Laoly, Siti Khadijah Marlina, Wenni Maylani, Ester Maysarah, Maysarah Mhd Ikhsan Rifki Nasution, Nur Sangadah Novia, Ayu Nugroho, Bagus Joyo Tirto Nurfitriah, Ratri Pohan, Siti Rolizah Pratiwi, Ria Widiya Putri, Chindy Aulia Rahayu, Atika Rahayu, Tiwi Rakhmawati, Fibri Rima Aprilia Riri Syafitri Lubis Sari, Dinda Permata Siregar, Agung Lesmana Siregar, Anggi Ramadany Suhaimi, Syech Suratna, Ayu Annisa Usna, Wilia Widyasari, Rina Yunisa, Fahira Audri