Doctoral Dissertations
Doctoral Dissertations
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Now showing items 21-32 of 32
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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 ... -
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 ... -
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 ... -
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 ... -
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 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 ... -
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 ... -
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 ... -
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 ... -
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 ... -
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 ... -
Sintesis Nanorod Ba(Nd)XFe12O19 Menggunakan Templat dari Pati Tapioka
(Universitas Sumatera Utara, 2017)Has conducted research synthesis of nanorod Ba (Nd)xFe12O19with variations of x = (0; 0.5; 1; and 1.5) mol % based sol-gel method using chitosan solution 1% (weight per volume) by 10% (volume per volume) as a dispersant ...
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