Browsing Doctoral Dissertations by Type "Disertasi Doktor"
Now showing items 1-20 of 31
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Analisis Optimalisasi Parameter Kinerja Sistem CDMA dengan Menggunakan Kanal Propagasi Gelombang Radio Empiris
(Universitas Sumatera Utara, 2014)A study has been made on the analysis of optimizing the performance parameters of the CDMA system using the empirical radio wave propagation channel. For the construction of this analysis have been developed modeling of ... -
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 ... -
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 ... -
Kajian Pertumbuhan Terumbu Karang Jenis Porites Berdasarkan Anthropogenic Causes dan Natural Causes di Kabupaten Tapanuli Tengah
(Universitas Sumatera Utara, 2015)A research about the growth of coral reef, Porites type in Ungge Island, North Tapanuli regency based on the record of annual ring. The research purpose is to investigate the composition of hard metal, structure and ... -
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 ... -
Karakterisasi dan Analisis Kemampuan Serat Ijuk dengan Filler Boron Karbida/ Boraks/ Gadolinium Oksida Sebagai Kandidat Perisai Radiasi Neutron Thermal
(Universitas Sumatera Utara, 2019)The application of nuclear radiation has been widely used in industrial activities, and it has been one of technological advancements in current days. However, it cannot be denied that nuclear emission harms nearby environment ... -
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 ... -
Karakterisasi Kawasan Karst di Desa Sulkam Kabupaten Langkat Sumatera Utara
(Universitas Sumatera Utara, 2015)Research has been done to characterize the karst area in the village Sulkam Langkat district of North Sumatra to obtain resistivity contour laterally and vertically, minerals, elements and morphology, compressive strength ... -
Karakterisasi Lapisan Film Tipis GaAs yang ditumbuhkan dengan Metode MOCVD di Atas Substrate Ge
(Universitas Sumatera Utara, 2013)Thin epitaxial GaAs films, with thickness varying are 350 nm, 500 nm, and 1 μ m were grown by metalorganic chemical vapour deposition (MOCVD) on Ge substrate. All sample characterized by Raman spectroscopy, ... -
Karakterisasi Nanokomposit Busa Poliuretan Dengan Filler Nanozeolit Alam Sarulla dan Besi Oksida Sebagai Material Penyerap Gelombang Mikro
(Universitas Sumatera Utara, 2017)Polyurethane foam nanocomposite material in the absorption of microwaves is very important in the military world and as a protection from interference caused by the development of microwave electronics and telecommunications ... -
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 ... -
Model dan Analisis Antena Mikrostrip Patch Segiempat Pencatuan Aperture-Coupled dengan Gap Udara di Antara Substrat Patch dan Ground Plane untuk Memperlebar Bandwidth
(Universitas Sumatera Utara, 2014)Microstrip antenna is an antenna that is able to offer a compact form, small size, lightweight, easily fabricated, and conformal. However, having a narrow bandwidth. One technique that can be used to widen the bandwidth ... -
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 ... -
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 ... -
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 ... -
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 ... -
Pembuatan dan Karakterisasi Membran Elektroda Selektif Ion Menggunakan Ionofor 7,16-DI-(2-METHYLQUINOLINE)-1,4,10,13-TETRAOXA-7,16-Diazacyclooctadecane (DQDC) untuk Penentuan Merkuri Secara Potensiometri
(Universitas Sumatera Utara, 2015)Ionophore of 7,16-Di-(2-Methylquinoline)-1,4,10,13-Tetraoxa-7,16-Diaza cyclooctadecane (DQDC from material of 1,4,10,13-Tetraoxa-7,16-Diazacyclooctadecane (DC) with 2- Chloromethylquinoline (C10H8ClN) have successfully ... -
Pembuatan dan Karakterisasi Nanokomposit Polyvinyl Alkohol dengan Partikulat ZnS sebagai Penguat
(Universitas Sumatera Utara, 2014)It has been conducted research about synthesis and characterizing nanocomposite of polyvinyl alcohol (PVA) with ZnS nanoparticles as reinforcing. This research aims to make and characterize nanocomposite PVA/ZnS that ... -
Pembuatan Sensor Urea Menggunakan Teknik Immobilisasi PVA-Enzim Coating PVC-KTpClPB
(Universitas Sumatera Utara, 2019)This study aims to make urea sensors as instruments for analyzing urea levels in blood serum. The method used was the potentiometric biosensor method on ion-selective electride (ISE) through the modification of the membrane ... -
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 ...