MÜF, Elektrik-Elektronik Mühendisliği Bölümü Koleksiyonu: Recent submissions
Now showing items 181-200 of 206
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Hava hedeflerinin tespiti için yakın gerçek zamanlı çoklu frekans bandı destekli pasif radar sisteminin geliştirilmesi
(Gazi Univ, Fac Engineering Architecture, 2019)Passive radars are radar systems that do not have a transmitter of their own but can identify and follow targets by using the transmitters located in the environment. the interest in passive radar systems, whose history ... -
Development of narrowband 92 MHz Yagi-Uda antenna for use in passive radar applications
(Ieee, 2019)The Yagi-Uda antennas have a wide range of applications ranging from radio broadcasting to passive radar systems. in this study, a Yagi-Uda antenna was developed to be used as a receiving antenna in an FM based passive ... -
Extraction of theoretical bit and symbol error rates of dual carrier modulation with QPSK
(Ieee, 2019)Dual carrier modulation (DCM) improves transmission performance in wireless communication channels by using it with orthogonal frequency-division multiplexing (OFDM). in the literature, DCM is proposed to use in ultra-wideband ... -
A robust and subject-specific sequential forward search method for effective channel selection in brain computer interfaces
(Elsevier Science Bv, 2019)Background: the input signals of electroencephalography (EEG) based brain computer interfaces (BCI) are extensively acquired from scalp with a multi-channel system. However, multi-channel signals might contain redundant ... -
Effect of annealing temperature on K-shell X-ray fluorescence parameters of zinc oxide thin films prepared by the sol-gel method
(Taylor & Francis Inc, 2019)Zinc oxide thin films were grown on a glass substrate by a sol-gel process using a spin-coating technique. the obtained thin films were annealed between 350 degrees C and 550 degrees C in 50 degrees C steps and were then ... -
Fabrication and characterization of Au/n-ZnO/p-Si/Al sandwich device with Sol-gel spin coating method
(Springer, 2019)ZnO thin films with the n-type properties were obtained on the p-Si substrates for multi-layered sandwich device depositing by sol-gel method. Au and Al were conducted on two side of hetero-junction by PVD technique. From ... -
Centrifugally spun silica (SiO2) nanofibers for high-temperature air filtration
(Taylor & Francis Inc, 2019)In this study, silica-based nanofibers were produced via centrifugal spinning (C-spin) and subsequent calcination. the produced heat resistant media was challenged with NaCl nanoparticles to investigate their filtration ... -
Thermoelectric transport behaviours of n-type Mg-2 (Si,Sn,Ge) quaternary solid solutions
(Keai Publishing Ltd, 2019)Mg2X (X=Si, Sn, and Ge) based systems have attracted widespread attention owing to their various benefits in thermoelectric applications. in particular, to date, ternary Mg2X based solid solutions have become one of the ... -
Received signal strength difference based leakage localization for the underwater natural gas pipelines
(Elsevier Sci Ltd, 2019)Natural gas is an indispensable energy resource of today. It is transported from production centers to the consumption areas extensively using underwater pipelines. Several reasons such as aging, internal and external ... -
Nano-scale single layer TiO2-based artificial synaptic device
(Springer Heidelberg, 2020)Synaptic nano-electronic devices for brain-inspired computing have become increasingly popular because of their biological neuron-like properties such as massive parallelism with lower power consumption. Metal oxide-based ... -
Low-cost multi-mode diode pumped Tm:YLF laser: Multi-color & Q-switching operations
(Elsevier, 2019)In this paper, we report a low-cost multi-mode AlGaAs laser diode pumped broadly-tunable solid-state Tm:YLF laser at room-temperature operating in two different regimes: multi-color and Q-switching. A low-cost multimode ... -
Solution blown nanofibrous air filters modified with glass microparticles
(Sage Publications Inc, 2021)High-pressure drop and lower dust holding capacity reduce the performance of nanofibrous air filters. For that reason, this study was carried out to form filters with high-quality factor and high dust holding capacity, ... -
A comparative study on SiO2 nanofiber production via two novel non-electrospinning methods: Centrifugal spinning vs solution blowing
(Elsevier, 2020)A comparative study on the production of nanofibrous silica (SiO2) mats via facile and innovative non-electro-spinning routes, solution blowing (SB) and centrifugal spinning (CS), and their subsequent calcination is ... -
A hybrid PV-battery/supercapacitor system and a basic active power control proposal in MATLAB/simulink
(Mdpi, 2020)An increase in the integration of renewable energy generation worldwide brings along some challenges to energy systems. Energy systems need to be regulated following grid codes for the grid stability and efficiency of ... -
Effect of air pressure on nanofiber production in solution blowing method
(Gazi Univ, Fac Engineering Architecture, 2020)In this study, effect of air pressure on nanofiber diameter and morphology was studied for solution blowing technique. A computational fluid dynamics (CFD) analysis was realized via ANSYS (R) Fluent software, and the results ... -
Sualtı doğalgaz boru hatlarındaki sızıntıların konumlandırılmasının zaman ve frekans seçici akustik kanalda incelenmesi
(Pamukkale Univ, 2020)Natural gas, which is an important energy source, is generally transported through natural gas pipelines that also pass through underwater. Underwater natural gas pipelines can be punctured for various reasons, especially ... -
A photovoltaic powered electrolysis converter system with maximum power point tracking control
(Pergamon-Elsevier Science Ltd, 2020)One of the main problems for renewable and other innovative energy sources is the storage of energy for sustainability. This study focuses on two different scenarios to benefit from solar energy more efficiently. Photovoltaic ... -
Theoretical and experimental evaluation of thermoelectric performance of alkaline earth filled skutterudite compounds
(Academic Press Inc Elsevier Science, 2020)Skutterudite compounds are one of the most promising thermoelectric materials that can be used for intermediate power generation applications because of their excellent thermoelectric and mechanical properties. in spite ... -
A new evolutionary preprocessing approach for classification of mental arithmetic based EEG signals
(Springer, 2020)Brain computer interface systems decode brain activities from electroencephalogram (EEG) signals and translate the user's intentions into commands to control and/or communicate with augmentative or assistive devices without ...
