Faculty of Mathematics and Natural Sciences: Recent submissions
Now showing items 821-840 of 11355
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Hubungan Nitrat (No3) dan Nitrit (No2) Terhadap Keanekaragaman Fitoplankton di Sungai Belawan
(Universitas Sumatera Utara, 2023)Phytoplankton diversity and nitrate nitrite content influence the water quality conditions of the Belawan River. Community activities such as the disposal of organic, inorganic, domestic waste and fertilizer runoff also ... -
Optimasi Penjadwalan Shift Kerja Perawat dengan Menerapkan Metode Algoritma Genetika pada RSU HKBP Balige
(Universitas Sumatera Utara, 2023)Nurse scheduling is something that must be considered in a hospital. Scheduling nurse work shifts is needed to regulate working hours so that the quality of nurses' work is well maintained and has a positive impact on ... -
Pelabelan Skolem Graceful pada Graf Sapu
(Universitas Sumatera Utara, 2023)Let G = (V,E) be a finite simple graph. Broom graph Bmn consist of (m + n) nodes is a path graph Pm with m nodes and a star graph Sn with (n + 1) nodes which are aligned at one vertex {V1}. Skolem graceful labeling is two ... -
Studi Etnobotani Nipah ( Nypha Fruticans (Thunb.) Wurmb.) di Kawasan Hutan Mangrove Kecamatan Medan Belawan, Kota Medan Sumatera Utara
(Universitas Sumatera Utara, 2023)Ethnobotany Study of Nipah Plants in the District Medan Belawan, North Sumatra aims to determine the utilization, value of economic, perceptions, and knowledge degradation of nipah palm in the community in Medan Belawan ... -
Pengaruh Ab Mix dan Spektrum Cahaya Terhadap Pertumbuhan Microgreen Bayam Merah (Amaranthus Tricolor L.) pada Media Tanam Arang Sekam
(Universitas Sumatera Utara, 2023)The growth of red spinach microgreens (Amaranthus tricolor L.) plays a crucial role in the context of providing a healthy food resource. This research aims to determine the optimal combination of AB Mix nutrient and light ... -
Penerapan Metode Cut Off Point (Cop) dan Fuzzy Serta Technique For Order Preference Of Similarity to Ideal Solution (Topsis) pada Penentuan Smartphone Terbaik
(Universitas Sumatera Utara, 2023)The advancement of technology has made smartphones indispensable for many people. Indonesia currently ranks fourth with the highest number of smartphone users in the world. This raises several problems, one of which is in ... -
Penerapan Metode Analytical Hierarchy Process dan Vikor Dalam Pemilihan Aplikasi E-Ticketing (Studi Kasus : Mahasiswa Universitas Sumatera Utara)
(Universitas Sumatera Utara, 2023)This study aims to determine the best alternative in solving the problem of choosing the right e-ticketing application using the Analytical Hierarchy Process (AHP) and VIKOR methods. The AHP method is used to obtain the ... -
Analisis Kualitas Pelayanan Terhadap Kepuasan Pelanggan Menggunakan Metode Importance Performance Analysis (IPA) dan Customer Satisfaction Indeks (CSI) (Studi Kasus: Mie Gacoan Cabang Dr. Mansyur Medan)
(Universitas Sumatera Utara, 2023)Customer satisfaction is a very important factor in the field of service. In customer satisfaction there are several methods to solve a problem in order to get good service. By using the Importance Performance Analysis ... -
Implementasi Metode Importance Performance Analysis untuk Menganalisis Kinerja dan Usulan Peningkatan Pelayanan
(Universitas Sumatera Utara, 2023)The purpose of this study is to determine student satisfaction from the importance and performance values in the Mathematics Undergraduate Study Program. The research method used in this study is quantitative. The sample ... -
Pembuatan Natrium Karboksimetil Selulosa (Na-Cmc) dari Selulosa Kulit Durian pada Variasi Berat Natrium Kloroasetat Melalui Reaksi Eterifikasi
(Universitas Sumatera Utara, 2023)Durian peel is an agricultural waste that can be used as a source of cellulose which is then modified into sodium carboxymethyl cellulose (Na-CMC). Cellulose was isolated using a combination of two methods, namely the ... -
Analisis Kandungan Logam Besi (Fe), Kadmium (Cd) dan Kromium (Cr) pada Beberapa Merek Krim Pemutih Wajah dengan Spektrofotometri Serapan Atom (SSA)
(Universitas Sumatera Utara, 2023)This research aims to analyze rate of iron, cadmium, and chromium in whitening cream that distributed in Simpang Limun Market, Medan. Sampel preparation in this resarch using wet digestion method.with HNO3 65% : HCl 37% ... -
Analisis Logam, Kadar Partikulat, dan Komposisi dari Debu Emisi Non-Exhaust Pada Jalan Raya (Lokasi : Jl. Sisingamangaraja)
(Universitas Sumatera Utara, 2023)Air pollution caused by motor vehicles has become a serious issue in many urban areas. Emissions from vehicle exhausts have received due attention, but there is another component that also contributes to air pollution, ... -
Analisis Kandungan Logam Kadmium (Cd), Tembaga (Cu) dan Magnesium (Mg) pada Air Minum Isi Ulang dengan Metode Spektrofotometri Serapan Atom (Ssa
(Universitas Sumatera Utara, 2023)Research has been carried out on the analysis of the elemental content of Cadmium (Cd), Copper (Cu) and Magnesium (Mg) in refillable drinking water using the Atomic absorption spectrophotometry (AAS) method. The aim of ... -
Perancangan Sistem Pengidentifikasi Pola Sidik Jari Menggunakan Matlab dengan Metode Minutiae Based Matching
(Universitas Sumatera Utara, 2023)Along with the times, the development of technology is also increasing. So many conveniences are offered with the sophistication of technology that occurs to help human life. One example of technological development that ... -
Keanekaragaman Kerang (Bivalvia) di Perairan Pantai Bunga, Kabupaten Batu Bara, Sumatera Utara
(Universitas Sumatera Utara, 2024)Bivalves are a class in the phylum molluscs that includes all types of shellfish that have a pair of shells. Research has been carried out with the title "Diversity of Shellfish (Bivalves) in the Waters of Bunga Beach, ... -
Studi Etnobotani Aren (Arenga Pinnata Merr.) pada Masyarakat Karo di Kecamatan Sibolangit, Kabupaten Deli Serdang, Sumatera Utara
(Universitas Sumatera Utara, 2024)Ethnobotanical Study of Sugar Palm (Arenga Pinnata merr.) In the Karo Community at Sibolangit District, Deli Serdang Regency, North Sumatra, the aim is to find out the knowledge and perceptions regarding the use of sugar ... -
Optimasi Produksi Kurma Salak Menggunakan Metode Economic Production Quantity (EPQ) di Koperasi Agrina Desa Parsalakan Kecamatan Angkola Barat
(Universitas Sumatera Utara, 2022)This study aimed to achieve optimal production levels when handling Salak dates by minimizing total inventory costs. Inventory is one of the issues related to production process activities, costs and distribution of goods, ... -
Penambahan Ekstrak Daun Kucai (Allium tuberosum) pada Pakan Buatan terhadap Pertumbuhan dan Kelangsungan Hidup Benih Ikan Bawal (Colossoma macropomum)
(Universitas Sumatera Utara, 2023)In order to increase the growth and life sustainanability of fry of the pomfret fish (Colossoma macropomum) rapidly, it is necessary to add the artificial feed with plant extracts to their feed. This research was carried ... -
Partial Least Square Structural Equation Modeling pada Analisis Faktor Kualitas Pelayanan Perpustakaan USU Berdasarkan Persepsi Mahasiswa
(Universitas Sumatera Utara, 2023)Several factors, including the library environment and the ability of employees, affect the quality of services provided by libraries. This research aims to find out how the staff competence variables and the library ... -
Metode Heuristik Berbasis Minimum Spanning Tree untuk Travelling Salesman Problem
(Universitas Sumatera Utara, 2023)The concept of traveling salesman problem is to find a Hamiltonian cycle that has minimum weight. This research modifies the Kruskal and Prim algorithms that are effective for determining the minimum spanning tree so as ...