Department of Mathematics: Recent submissions
Now showing items 41-60 of 4429
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Analisis Spasial Pada Pemodelan Faktor-Faktor yang Mempengaruhi Kriminalitas di Indonesia Tahun 2020-2022 dengan Geographically Weighted Panel Regression
(Universitas Sumatera Utara, 2025)Crime is one of the socio-economic issues that remains unresolved in Indonesia. Although Indonesia is known as a relatively peaceful country, in reality, many citizens still experience criminal acts. This issue requires ... -
Automorfisma Graf Bunga Matahari
(Universitas Sumatera Utara, 2025)A graph automorphism is an isomorphism from a graph $G$ to itself a function that maps a graph to itself one-on-one and onto, and preserves the adjacency relation between the vertices of the graph, if two vertices are ... -
Metode Fuzzy Time Series Average Based untuk Peramalan Tingkat Suku Bunga Acuan Bank Indonesia
(Universitas Sumatera Utara, 2025)Forecasting the Bank Indonesia benchmark interest rate (BI Rate) is one of the essential indicator in monetary policy and national economic, as its fluctuations directly affect inflation, the exchange rate, the banking ... -
Digraf Eksentrik dari Graf Barbel
(Universitas Sumatera Utara, 2025)This study investigates the structure of the eccentric digraph ED(G) of barbell graphs, which are formed by connecting two graphs (either complete or cyclic) via a path. The four types of barbell graphs analyzed include: ... -
Perbandingan Algoritma Welch-Powell, Algoritma Greedy, dan Algoritma Recursive Largest First dalam Penjadwalan Mata Pelajaran di SMP Swasta Islam Terpadu Iqra
(Universitas Sumatera Utara, 2025)This research aims to compare the Welch-Powell algorithm, the Greedy algorithm, and the Recursive Largest First algorithm in scheduling subjects for the odd semester of the 2024/2025 academic year at SMP Swasta Islam Terpadu ... -
Analisis Model Casson pada Aliran Pseudoplastik Darah terhadap Masalah Obesitas di Arteri Abdominal
(Universitas Sumatera Utara, 2025)Blood flow in arterial vessels exhibits complex non-Newtonian behavior, especially under pathological conditions such as obesity. Obesity is a major risk factor for the development of cardiovascular diseases, as it ... -
Algoritma Branch and Bound dengan Clustering Metode Sweep untuk Menyelesaikan Masalah Vehicle Routing Problem(VRP) (Studi Kasus: PT. Mitha Artha Keluarga)
(Universitas Sumatera Utara, 2025)The vehicle routing problem is a combinatorial optimization problem that aims to determine the most efficient route for a number of vehicles to deliver goods to a number of bases. PT Mitha Artha Keluarga, as an authorized ... -
Analisis Sensitivitas pada Integer Linear Programming Menggunakan Metode Branch and Bound untuk Optimasi Jumlah Produksi Seragam Sekolah pada UD Hesty
(Universitas Sumatera Utara, 2025)UD Hesty is a garment company that produces school uniforms and faces challenges in determining the optimal production quantity. These challenges are due to limited raw materials. Inaccurate decisions can lead to inefficient ... -
Mahalanobis Distance dan Principal Component Analysis Menggunakan Metode Robust Minimum Covariance Determinant (MCD) dan Minimum Volume Ellipsoid (MVE)
(Universitas Sumatera Utara, 2025)In multivariate analysis, estimates of the mean and covariance matrix are used as the basis for calculations in the Mahalanobis Distance (MD) and Principal Component Analysis (PCA) statistical techniques. However, the ... -
Penentuan Rute Terpendek antara Stasiun Kereta Api Medan dan Universitas Sumatera Utara dengan Algoritma Greedy dan Floyd-Warshall
(Universitas Sumatera Utara, 2025)Transportation is an important factor in supporting community mobility, especially in dense areas such as Medan City. The route between Medan Railway Station and the University of North Sumatra (USU) is one of the strategic ... -
Kajian Model SITR (Susceptible - Infected - Treatment - Recovered) pada Penyebaran Penyakit HIV/AIDS di Provinsi Sumatera Utara
(Universitas Sumatera Utara, 2025)This study aims to examine and apply the SITR (Susceptible-Infected-Treatment-Recovered) model to the spead of HIV/AIDS in North Sumatra. This model is divided into 4 compartments, namely the population of individuals ... -
Kajian Optimalisasi Metode Fuzzy TOPSIS dalam Pemilihan Saham dengan Evaluasi terhadap Risiko dan Return
(Universitas Sumatera Utara, 2025)This study aims to mathematically examine the results of stock selection analysis in the banking sector listed on the Indonesia Stock Exchange (IDX) using the Fuzzy Technique for Order Preference by Similarity to Ideal ... -
Analisis Aliran Darah Pseudoplastik di Sekitar Penyumbatan Parsial Pembuluh Retina dengan Pendekatan Non-Newtonian
(Universitas Sumatera Utara, 2025)Retinal Vein Occlusion (RVO) is one of the retinal vascular disorders characterized by blood flow obstruction due to partial venous blockage. To realistically represent this phenomenon, a blood flow model capable of ... -
Perencanaan Persediaan dengan Metode Continuous Review System dan Peramalan untuk Meminimalkan Biaya Persediaan di PT Intrafood Singabera Indonesia
(Universitas Sumatera Utara, 2025)PT Intrafood Singabera Indonesia faces challenges in managing its ginger raw material inventory due to the use of conventional inventory control methods. Throughout 2023, the company recorded 107 procurement activities ... -
Analisis Aliran Darah Non-Newtonian Pseudoplastik di Arteri Ginjal pada Kasus Stenosis Arteri Renalis Menggunakan Model Carreau
(Universitas Sumatera Utara, 2025)This study aims to analyze the behavior of blood flow as a non-Newtonian pseudoplastic fluid in renal arteries that experience stenosis with a degree of narrowing of 60% in various geometric shapes. The approach used in ... -
Peramalan Indeks Harga Konsumen Kota Medan Menggunakan Metode Fuzzy Time Series Markov Chain
(Universitas Sumatera Utara, 2025)The Fuzzy Time Series Markov Chain (FTSMC) method is used to forecast time series data that contains uncertainty, based on fuzzy set theory and the concept of Markov chains. This forecasting process involves four main ... -
Penerapan Metode Fuzzy PROMETHEE dalam Penentuan Metode Persalinan Ibu
(Universitas Sumatera Utara, 2025)Decision-making in the healthcare sector, particularly in determining the method of childbirth, is a complex process involving various medical and non-medical criteria. This study aims to implement the Fuzzy PROMETHEE ... -
Optimasi Produksi Padi dengan Menggunakan Fuzzy Linear Programming di Provinsi Sumatera Utara
(Universitas Sumatera Utara, 2025)Rice production faces various challenges in the form of uncertainties in the use of resources such as harvest area, seed availability, fertilizer realization, and labor. This research aims to apply the fuzzy linear programming ... -
Optimasi Penjadwalan Transportasi untuk Efisiensi Distribusi Beras di Sumatera Utara dengan Algoritma Genetika (Studi Kasus: Perum Bulog Medan)
(Universitas Sumatera Utara, 2025)The intercity rice distribution system in North Sumatra, managed by Perum Bulog Medan, continues to face significant challenges in the form of high transportation costs and suboptimal delivery scheduling. This study aims ... -
Implementasi Metode Goal Programming pada Perencanaan Produksi di Pabrik Roti Wati Bakery
(Universitas Sumatera Utara, 2025)Pabrik Roti Wati Bakery faces challenges in optimizing donut production due to raw material limitations and the imperative to maximize profit. This research implements the Goal Programming (GP) method as a multi-objective ...