Doctoral Dissertations
Doctoral Dissertations
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Pengembangan Beton Berpori Nano Green Engineering Berbasis Cangkang Kerang Dara dengan SiO2 Abu Boiler Kelapa Sawit dan Zeolit Alam Pahae
(Universitas Sumatera Utara, 2025)This study aims to develop a nano green engineering porous concrete using blood cockle shells combined with SiO2 extracted from palm oil boiler ash (POBA) and Pahae natural zeolite as partial cement replacements. The goal ... -
Pengembangan Komposit Phase Change Materials (PCM) dan Magnetit (Fe3O4) sebagai Beton Penyimpan Termal
(Universitas Sumatera Utara, 2025)This study aims to develop a phase change material (PCM) composite based on paraffin wax and polyethylene glycol (PEG6000), reinforced with magnetite (Fe3O4) nanoparticles, to enhance the thermal conductivity of concrete ... -
Analisis Respons Frekuensi Bode dan Nyquist pada Pengendali PID Berdasarkan Data Sensor Aliran dan Tekanan dalam Multi Loop Controller pada Sistem Fluida
(Universitas Sumatera Utara, 2025)This study aims to analyze the frequency response of a fluid system controlled by a PID (Proportional-Integral-Derivative) controller using flow and pressure sensor data. Data were collected from a Multi-Loop Controller ... -
Sintesis dan Karakterisasi Adsorben Karbon Aktif Hydrilla Verticillata/Kitosan/Tio2 untuk Menyerap Cu, Pb, Zn, Cr dan Fe dalam Limbah Cair dengan Metode Fotokatalis
(Universitas Sumatera Utara, 2025)Environmental pollution by heavy metals is a serious problem that requires effective solutions. One promising method is the adsorption method using biomass-based activated carbon. Hydrilla verticillata-activated carbon was ... -
Karakterisasi Edible Coating Berbahan Pektin/Kitosan/Ekstrak Daun Kenikir (Cosmos Caudatus) Untuk Meningkatkan Umur Simpan Pada Buah Tomat
(Universitas Sumatera Utara, 2025)An edible coating based on pectin, chitosan, and the addition of Cosmos caudatus (kenikir) leaf extract was developed in this study. The aim of lhe research was to determine the characteristics of the edible coating and ... -
Efek Over Current Pada Kabel Penghantar Listrik Jenis Tembaga (Cu) Berisolasi Polivinyl Chloride (PVC) terhadap Inisiasi Penyebab Kebakaran
(Universitas Sumatera Utara, 2025)This study aims to analyze the physical and chemical effects of electromigration failure caused by overcurrent in copper (Cu) cables as a potential initiator of electrical fires. Testing was conducted on PVC-insulated ... -
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 ... -
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, ... -
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 ... -
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 ... -
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 ... -
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 ... -
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 ... -
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 ... -
The Enhancement of Transition Temperature and Phase Stability in (TI2-xMxBa2CaCu28-8) High Temperature Superconductor with M=Cr and Te
(Universitas Sumatera Utara, 2017)Two series of the Tl-based (T1-2212) high temperature superconductor, Th2-xCryBa2CaCu2O8- and Th2-TexBa2 CaCu2O-s have been prepared via solid state reaction. The substitution of Cr and Te to the TI-site is aimed to ... -
Pemanfaatan Limbah Padat Industri Karet Sarung Tangan Dan Poliurethane Alam Dalam Pembuatan Genteng Polimer yang Kedap Suara
(Universitas Sumatera Utara, 2013)Polymer's roof has been done using solid waste in rubber gloves industry with the best mixing composition from the making of polymer's roof Samples from any composition which is done thus being pressed by hot compressor ... -
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 ... -
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 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, ... -
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) ...
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