Faculty of Mathematics and Natural Sciences: Recent submissions
Now showing items 901-920 of 11354
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Modifikasi Campuran Aspal dengan Limbah Plastik High Density Polyethylene (HDPE), Low Density Polyethylene (LDPE) dan Polystyrene (PS) yang Tergrafting Glasidil Methacrylate (GMA) dengan Metode Internal Mixer terhadap Parameter Uji Marshall
(Universitas Sumatera Utara, 2023)This research was carried out by utilizing plastic waste of the type Polystyrene (PS), High Density Polyethylene (HDPE) and low density polyethylene (LDPE) for mixing asphalt. The first thing to do is purify plastic waste ... -
Sintesis Bio-Pelumas 2-Etilheksil Oleat dari Asam Oleat dan 2-Etil Heksanol dengan Katalis Amberlis-46 Menggunakan Radiasi Microwave
(Universitas Sumatera Utara, 2023)The synthesis of 2-ethylhexyl oleate from the esterification reaction of oleic acid and 2-ethylhexanol with the Amberlis-46 catalyst using microwave radiation has been carried out. The parameters of the molar ratio of ... -
Pengaruh Variasi Massa Katalis MgO/Mesopori Silika Hasil Impregnasi yang Digunakan pada Transesterifikasi Minyak Jarak
(Universitas Sumatera Utara, 2023)The effect of MgO on the impregnation of mesoporous silica and its application as a catalyst in castor oil transesterification by varying the mass of catalyst used has been studied. Mesoporous silica was synthesized from ... -
Respon Pertumbuhan, Produksi, dan Kandungan Gizi pada Tanaman Kedelai Hitam [Glycine max (L.) Merr.] melalui Sistem Tanam Multi Kanopi
(Universitas Sumatera Utara, 2024)Black soybean [Glycine max (L) Merr is one of the legumes that has more anthocyanin content and has a longer shelf life than yellow soybean The increasing demand for soybean is not balanced with productivity, production ... -
Resiliensi Karang di Kawasan Konservasi Pesisir Timur Pulau Weh Kota Sabang, Provinsi Aceh
(Universitas Sumatera Utara, 2023)Corals frequently face threats from natural conditions such as bleaching. Bleaching events occurred in the waters surrounding Weh Island in 2010 and 2016, resulting in a decline in coral health. Therefore, it is crucial ... -
Analisis Kestabilan Genetik Embrio Somatik Kelapa Sawit (Elaeis guineensis Jacq.) Hasil Kultur Suspensi
(Universitas Sumatera Utara, 2024)The regeneration pathway through in vitro oil palm plants (Elaeis guineensis Jacq.) has so far been through somatic embryogenesis, as this process is capable of producing embryos with bipolar structures resembling zygotic ... -
Pengembangan Klasifikasi dan Identifikasi Jenis Daging Menggunakan Deret Sensor dan Jaring Saraf Tiruan (JST)
(Universitas Sumatera Utara, 2023)Chicken, beef, and lamb are classified based on the distinctive aroma of the meat determined using an electronic nose consisting of a series of sensors with six pieces. This electronic nose also comprises a Conducting ... -
Preparasi dan Karakterisasi Polivinilklorida Termodifikasi Anhidrida Maleat dan Butil Akrilat dengan Pengisi Sepiolite dan Organo-Sepiolite sebagai Bahan Kabel Tahan Panas
(Universitas Sumatera Utara, 2023)This research investigates the influence of using magnesium oxide (MgO) and sepiolite fillers in PVC blends and modification with maleic anhydride and butyl acrylate comonomers (AM/BA) on the properties of PVC blends. The ... -
Model Matematika untuk Masalah Perutean Lokasi dengan Stasiun Transfer Perantara pada Limbah
(Universitas Sumatera Utara, 2021)Product packaging will lead to the emergence of waste after the product is used. The management of the waste must be considered so as not to cause loss and damage to nature. In this waste management, it involves a transfer ... -
Model Optimasi Perencanaan Pengelolaan Hutan Berkelanjutan Terpadu untuk Pembangkit Listrik Tenaga Air
(Universitas Sumatera Utara, 2023)Forest management planning is not only placed on managing timber production but also on maintaining forest ecosystem values, such as water conservation. This study discusses the need for water conservation by forests so ... -
Degradasi Pewarna Tekstil dengan Nanokomposit Cu2O/ZnO/GO melalui Metode Fotokatalisis sebagai Bahan Pengolahan Air Limbah
(Universitas Sumatera Utara, 2023)The development of the textile industry that requires dyes such as Methylene Blue (MB) is very rapid, where MB is very dangerous for human health which can cause irritation to the skin, respiratory tract and the danger ... -
Efek Ekstrak Etanol Daun Sikkam (Bischofia javanica) terhadap Profil Lipid, Histologi Aorta, dan Ginjal Tikus Putih Jantan Model Diabetes Mellitus
(Universitas Sumatera Utara, 2023)Metabolic disorders due to diabetes mellitus can cause several chronic complications that can lead to several complications, especially abnormalities in the lipid profile of the blood. Lipid profile abnormalities due to ... -
Modifikasi Aspal Berbahan Serbuk Karet Ban Bekas dan Plastik Daur Ulang Polietilena Menggunakan Polimer Reaktif NR-g-MA dan PE-g-MA sebagai Bahan Penyerasi
(Universitas Sumatera Utara, 2024)The main objective of this research is to improve the quality of binder asphalt by adding polymer and reactive polymer as compatibilizer agents to improve asphalt-polymer miscibility. The use of polymer asphalt has been ... -
Bootstrap Rata-Rata Bergerak Ganda Tertimbang Eksponensial dalam Proses Kontrol Multivariat
(Universitas Sumatera Utara, 2019)The purpose of this study is to build alternative methods of product quality control using Bootstrap Double Exponential Weighted Moving Average in Multiva- riate Process Control (MDEWMA). The data used in this study are ... -
Persoalan Konsensus dalam Keputusan Kelompok
(Universitas Sumatera Utara, 2018)Group decision-making has become part of daily organizational life. Many people spend their workdays attending meetings aiming only to communicate, but some are involved to joint make some type of decision. The decision-making ... -
Isolasi dan Identifikasi golongan senyawa flavonoid dari Kulit Batang Goring- Goring (Glochidion Rubrum Blume)
(Universitas Sumatera Utara, 2024)Isolation and identification of flavonoid compound from the bark of goring-goring (Glochidion rubrum Blume) had been carried out through the maceration extraction stage with methanol solvent. The methanol extract is ... -
Jenis-Jenis Arecaceae di Kawasan Taman Hutan Raya Bukit Barisan Desa Bandar Baru Kecamatan Sibolangit Kabupaten Deli Serdang Sumatera Utara
(Universitas Sumatera Utara, 2024)Bukit Barisan Forest Park located at Bandar Baru Village Sibolangit District, is one of the forest area which has high diversity of plant species. one of them is the species of Arecaceae. This area has various topographical ... -
Pengukuran Medan Listrik di Bawah Saluran Transmisi 150 KVdan Perhitungan dengan Menggunakan Metode Bayangan Kompleks
(Universitas Sumatera Utara, 2023)High voltage and current flowing in the transmission line can cause an electric field. The calculation of electric field strength in high voltage airways will certainly be difficult if done manually, therefore calculating ... -
Implementasi Metode Continuous Review dalam Mengoptimalkan Biaya Persediaan Bahan Baku (Studi Literatur Review)
(Universitas Sumatera Utara, 2023)Raw material inventory is an important factor in the company, so that the supply of raw materials must be sufficient to be able to guarantee the need for smooth production activities. To organize optimal inventory, an ... -
Penerapan Metode Simple Additive Weighting (SAW) dalam Keputusan Pemilihan Jurusan di Madrasah Aliyah Negeri 1 Deli Serdang
(Universitas Sumatera Utara, 2023)Madrasah Aliyah Negeri 1 Deli Serdang (MAN) is one of the schools in Tanjung Morawa District, Deli Serdang Regency. This madrasa routinely selects majors for its new students every year. Choosing this major is intended ...