Browsing Doctoral Dissertations by Issue Date
Now showing items 1-20 of 34
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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 ... -
Karakteristik dan Klasifikasi Awan Konvektif Menggunakan Satelit Himawari dengan Pendekatan Model Convolution Neural Network untuk Mitigasi Keselamatan Penerbangan di Wilayah Sumatera Utara
(Universitas Sumatera Utara, 2024)Forecasting rainfall events, such as hefty rainfall, as an early warning is an important component in hydrometeorological disaster mitigation and aviation areas. Improving aviation safety depends on the weather conditions ... -
Pembuatan dan Analisis Resin Komposit Sebagai Bahan Tambal Gigi Berbasis Urethane Dimethacrylate (UDMA) dan Triethylene Glycol Dimethacrylate (TEG-DMA) dengan Fotoinisiator Comphorquinone (CQ) dan Trimethylbenzoyl Phosphine Oxide (TPO)
(Universitas Sumatera Utara, 2024)In this work, urethane dimethacrylate (UDMA) was used as dental resin as an non-toxic alternative to Bisphenol A-glycidyl methacrylate (Bis-GMA). Additionally, UDMA combine with triethylene glycol dimethacrylate ... -
Pengembangan Nanomortar Engineered Cementitious Composites (ECC) Berbasis Palm Oil Fuel Ash-Fly Ash (Pofa-Fa)
(Universitas Sumatera Utara, 2024)This research aims to explore the influence of POFA and FA nanoparticle composition as a cementitious material in nanomortar POFA-FA ECC on mechanical properties (compressive strength and flexural strength), physical (XRD, ... -
Pengembangan Sistem Peringatan Dini Cuaca Berdasarkan Klasifikasi Awan Konvektif pada Radar Cuaca C-Band dengan Model Crowdsource di Wilayah Banten
(Universitas Sumatera Utara, 2024)Banten is one of the regions in Indonesia that often faces the threat of extreme weather impacts. Convective clouds that form can be related to the development of intense storms that produce extreme weather, such as heavy ... -
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 ... -
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 ... -
Sintesis dan Karakterisasi Nanokomposit Nickel Kobaltit dan Reduce Grafena Oksida (NiCo204/rGO) Sebagai Material Barn Pembuatan Elektroda Superkapasitor
(Universitas Sumatera Utara, 2022)Pseudocapacitive type supercapacitor electrode material based on nanocomposites has been made from a mixture of NiO nanoparticles, Co3O4 nanoparticles, and reduced graphene oxide (rGO) through coprecipitation and ... -
Sintesis Silikon Dioksida (SiO2) dari Debu Vulkanik Gunung Sinabung, TiO2 dan PVA sebagai Membran Komposit untuk Pengolahan Air dengan Metode Fotokatalis
(Universitas Sumatera Utara, 2022)The study was conducted on the extraction of Mount Sinabung’s volcanic ash with the coprecipitation method to produce silicon dioxide (SiO2). SiO2 was used as a filler in photocatalyst composite membrans which consisting ... -
Ketahanan Oksidasi dan Korosi Temperatur Tinggi Lapisan FeCrAITiY-MoSi2
(Universitas Sumatera Utara, 2022)The research has been carried out on the coating of low carbon steel and its characterization. The coating was set up by two different methods, namely the fire flame spray technique and the Spark Plasma Sintering (SPS) ... -
Preparasi dan Karakterisasi Kain Selfcleaning dan Antibakteri Menggunakan Nanokomposit Abu Boiler Kelapa Sawit, Titanium Dioksida serta Kitosan sebagai Pelapis
(Universitas Sumatera Utara, 2022)Textiles have an important role in the health sector. Recently, textiles have received special attention in the midst of the Covid-19 pandemic that began in 2019. Medical personnel are concerned about the potential for ... -
Pengembangan Nanoadsorben Kitosan/Magnetik Fe3o4/ Karbon Aktif Kulit Pisang (K- M- K) untuk Remediasi Air Tercemar
(Universitas Sumatera Utara, 2022)Therefore, it was necessary to develop nano-adsorbents for the remediation of polluted water, this process was carried out by combining Chitosan (C)-Magnetic (M)-activated Carbon (C) materials. The activated carbon used ... -
Karakterisasi Garam Lokal Aceh sebagai Kandidat Phase Change Materials (PCM) untuk Thermal Energi Storage
(Universitas Sumatera Utara, 2022)Thermal energy storage plays important role in energy system and helps in optimize the overall efficiency. Development of energy storage system for particular purposes requires some information on the raw material which ... -
Sintesis Nanokomposit Fe3O4-ZnO Menggunakan Metode Hidrotermal sebagai Aplikasi Sensor Gas Etanol
(Universitas Sumatera Utara, 2021)This study aims to create a prototype of the ethanol gas sensor. The research was conducted to apply the active material of the ethanol gas sensor by synthesizing Fe3O4-ZnO nanocomposite through the hydrothermal method as ... -
Sintesis dan Karakterisasi Sodium Mangan Oksida (Na2Mn3O7) sebagai Katoda Baterai Ion Sodium dengan Bahan Pengisi Graphitic Carbon Nanostructures dari Limbah Kulit Durian
(Universitas Sumatera Utara, 2021)Na2Mn3O7, which is in triclinic structure, is known to have a high energy capacity value that can be applied as a battery cathode. In addition, graphitic carbon nanostructures (GCN) obtained from durian skin waste was ... -
Pembuatan dan Karakterisasi Film Kitosan Sebagai Green Dielektrik dengan Penambahan Natrium Tripolyphosphate (Na5P3O10) untuk Aplikasi Kapasitor Elektrostatik
(Universitas Sumatera Utara, 2020)Pembuatan film kitosan sebagai green dielektrik dilakukan untuk meningkatkan karakteristik film kitosan baik kondisi fisis maupun sifat listriknya. Hal ini dilakukan karena karakteristik film kitosan murni memiliki ... -
Karakterisasi Ambient Noise dan Klasifikasi Waveforms dengan Pendekatan Machine Learning pada Jaringan Seismik Sumatera Bagian Utara
(Universitas Sumatera Utara, 2020)The characterization of ambient noise for increasing of the performance of both Broadband and new mini region sensors and the classification of seismic signals is interesting to be studied and developed, utilizing sensors ... -
Pengembangan Lapisan Fecraltiy - Mcraly (M = Co dan Ni) Tahan Oksidasi dan Korosi Temperatur Tinggi Pada Baja Karbon
(Universitas Sumatera Utara, 2020)Low carbon steel is a metal material that is often used for structural applications and piping systems in the industrial world. This is because low carbon steel has good mechanical properties, is relatively inexpensive, ... -
Studi dan Disain Pengendali Sebuah Mobile Inverted Pendulum dengan Dua Roda Bergerak Bebas pada Bidang Horizontal
(Universitas Sumatera Utara, 2019)This research has carried out for a two-wheeled Mobile Inverted Pendulum (MIP) moves free in the horizontal plane by using a linearization process with local stability analysis methods, and it was founded an encouraging ... -
Sintesis Bahan Magnet BaFe12-2xMgxAlxO19 (x=0-0.5%mol) Berbasis Bahan Baku Komersil dan Pasir Besi Alam Sumatera Barat untuk Material Penyerap Gelombang Mikro
(Universitas Sumatera Utara, 2019)Barium hexa-ferrite (BaFe12O19) is hard magnetic materials, which is based on iron oxide. The synthesis of BaFe12-2xMgxAlxO19 of magnetic materials for microwave absorption has been done using the solid state reaction and ...