Browsing Doctoral Dissertations by Title
Now showing items 1-10 of 34
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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 ...