Faculty of Mathematics and Natural Sciences
Sub-communities within this community
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Department of Biology [1267]
Departemen Biologi -
Department of Chemistry [3012]
Departemen Kimia -
Department of Mathematics [4419]
Departemen Matematika -
Department of Physics [2714]
Departemen Fisika
Recent Submissions
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Analisis Sensitivitas Pada Model DEA Dengan Pendekatan Fuzzy Pada Pengukuran Kinerja Lingkungan Perumahan
(Universitas Sumatera Utara, 2025)Sensitivity analysis in DEA models using a fuzzy approach can provide significant benefits in measuring the environmental performance of housing. This method can help identify and measure the impact of changes in input ... -
Penerapan Metode Fuzzy Analytical Hierarchy Process (AHP) dalam Pemilihan Paket Layanan Internet Prabayar (Studi Kasus Mahasiswa FMIPA USU)
(Universitas Sumatera Utara, 2025)This research aims to measure the level of accuracy and effectiveness of the application of the Fuzzy Analytical Hierarchy Process (AHP) method in selecting internet service packages. The selection of internet service ... -
Vehicle Routing Problem Relaxed Time Windows
(Universitas Sumatera Utara, 2025)The Vehicle Routing Problem with Relaxed Time Windows (VRP-RTW) is an ex tension of the classic Vehicle Routing Problem (VRP) that allows for flexibility in service time windows. In VRP-RTW, vehicles are allowed to arrive ... -
Model Optimasi Distribusi Logistik Menggunakan Multi-Depot Capacitated Vehicle Routing Problem
(Universitas Sumatera Utara, 2025)Logistics distribution is vital for enhancing the efficiency and competitiveness of Indonesia. The challenges in Indonesian logistics include complex geography, limited infrastructure, traffic congestion, and high ... -
Modifikasi Data Anomali Kunjungan Wisman ke Sumatera Utara Selama Periode Covid-19 Dengan Metode Indikator Statistik dan Interpolasi Spline Time Series Untuk Kelayakan Model Time Series
(Universitas Sumatera Utara, 2025)The feasibility of time series models is highly influenced by both the availability of data and the structural patterns of the series itself. The regular collection of data over time plays a crucial role in generating ... -
Penaksiran Parameter Model Autoregressive Integrated Moving Average (ARIMA) Menggunakan Hamiltonian Monte Carlo dan Metropolis-Hastings
(Universitas Sumatera Utara, 2025)Currency exchange rate is one of the key economic indicators that reflects a country’s stability and competitiveness. The selling rate of USD against the Indonesian Rupiah exhibits significant fluctuations, thereby requiring ... -
Rancang Bangun Sistem Pengujian pada Penentuan Massa dan Tekanan Tabung Gas LPG menggunakan LoadCell Hx711 dan Sensor Tekanan
(Universitas Sumatera Utara, 2025-10-16)The 3-kg Liquefied Petroleum Gas (LPG) cylinder is a widely used household energy source in Indonesia and is classified as a Prepackaged Commodity (BDKT), which mandates strict quantity verification under legal metrology ... -
Analisis Efek Antiinflamasi Nanoherbal Daun Söfö- Söfö (Adenostemma lavenia) dalam Mengatasi Sepsis Paru- Paru Melalui Studi In Silico
(Universitas Sumatera Utara, 2025)Pulmonary sepsis is a severe systemic inflammatory condition with potentially fatal outcomes, necessitating an effective therapeutic approach. This study aimed to evaluate the anti-inflammatory potential of the nanoherbal ... -
Studi Pengaruh pH Dan Total Dissolved Solids (TDS) Terhadap Kinerja Detektor Mikroplastik Berbasis Iot Di Sungai Deli Medan
(Universitas Sumatera Utara, 2025)Microplastics are one of the main pollutants affecting water quality in rivers, including the Deli River in Medan. This study aimed to analyze the impact of pH and Total Dissolved Solids (TDS) on the performance of an ... -
Studi Etnobotani dan Skrining Fitokimia Tumbuhan Obat untuk Sistem Peredaran Darah pada Masyarakat Kecamatan Tamiang, Hulu Aceh Tamiang
(Univesitas Sumatera Utara, 2025)The use of traditional medicinal plants plays an important role in maintaining public health, particularly in the treatment of circulatory system diseases, which remain a major health concern. This study aims to document ... -
Pengaruh Intrusi Air Laut terhadap Karakteristik Air Sumur Bor dan Konvensional di Desa Dusun 1 Pantai Cermin Kanan Sumatera Utara
(Universitas Sumatera Utara, 2025)Seawater intrusion is a serious threat to groundwater quality in many coastal areas, particularly in Indonesia, an archipelagic country that is highly vulnerable to rising sea levels and excessive groundwater extraction. ... -
Kekayaan Jenis Liken di Taman Wisata Alam Sicike-Cike Kabupaten Dairi dan Potensinya Sebagai Sumber Antioksidan
(Universitas Sumatera Utara, 2025)Research on lichens in North Sumatra is still limited; in fact, lichens have potential that can be utilized in the fields of health and pharmaceuticals. This study aims to identify liken species found in the Sicike-cike ... -
Penaksiran Parameter Model ARIMA dengan Metropolis-Hastings dan Gibbs Sampling
(Universitas Sumatera Utara, 2025)The ARIMA model is one of the most widely used methods in time series analysis, particularly for forecasting. The accuracy of the ARIMA model strongly depends on precise parameter estimation. The aim of this study is to ... -
Penentuan Optimal Produksi Dimsum Menggunakan Metode Goal Programming pada PT. Juragan Dimsum
(Universitas Sumatera Utara, 2025)This study aims to determine the optimal production capacity of dimsum at PT. Juragan Dimsum using the Goal Programming method. In the planning process, the company faces several constraints, including meeting market demand, ... -
Adsorben Berbasis Zeolit Alam Pahae dan Karbon Aktif Ampas Kopi Sebagai Filter Gas Buang Kendaraan Bermotor Roda Dua
(Universitas Sumatera Utara, 2025)Research on zeolite-activated charcoal based adsorbent of coffee grounds as exhaust filters for two-wheeled motor vehicles has been conducted. Zeolite as matrix and activated carbon coffee grounds as filler with powder ... -
Analisis Dosis Paparan Pekerja Radiasi Menggunakan Thermoluminescent Dosimeter (TLD) di Wilayah Sumatera Utara Periode September 2022 – November 2024
(Universitas Sumatera Utara, 2025)This study was conducted to determine the level of radiation exposure received by radiation workers in the North Sumatra region during the period from September 2022 to November 2024. In addition, the study aimed to observe ... -
Keberadaan Serangga dan Peranannya Pada Lahan Pertanian Padi (Oryza sativa L.) di Kecamatan Medang Deras Kabupaten Batu Bara Sumatera Utara
(Universitas Sumatera Utara, 2025)The presence of insects is greatly influenced by the growth period of rice plants (Oryza sativa L.). During its growth period, it often experiences insect disturbances, including pests, pollinators and predators. The study ... -
Implementasi Goal Programming dalam Mengoptimalkan Penjadwalan Perawat Rumah Sakit Umum Mitra Medika Amplas
(Universitas Sumatera Utara, 2025)Nurse scheduling is a common problem in hospitals, making it crucial to devise an optimal schedule for maintaining the quality of healthcare services in hospitals. This study proposes an optimization model for nurse ... -
Kajian Model SIR-ASI pada Penyebaran Penyakit Demam Berdarah Dengue dengan Adanya Klasifikasi Usia
(Universitas Sumatera Utara, 2025)This study develops an SIR-ASI model for Dengue Hemorragic Fever (DHF) by incorporating age classification in the human population, specifically into children and adults groups. The model is structured into nine compartments: ... -
Sintesis Membran Selulosa Asetat dari Nata De Coco dengan Penambahan Diklorometana menggunakan Metode Inversi Fasa
(Universitas Sumatera Utara, 2025)This study aims to synthesize and characterize cellulose acetate membranes derived from nata de coco with the addition of dichloromethane (DCM) using the phase inversion method. Nata de coco was selected due to its high ...