Yazar "RTEÜ, Mühendislik ve Mimarlık Fakültesi, Elektrik-Elektronik Mühendisliği Bölümü" için Mühendislik Fakültesi listeleme
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On channel estimation in DC biased optical OFDM systems over VLC channels
Şaylı, Osman; Doğan, Hakan; Panayırcı, Erdal (Ieee, 2016)Visible Light Communication(VLC) has been considered as a potential access option for 5G wireless systems to solve performance limitation due to bandwidth shortage at radio frequency (RF) band. in (VLC) system, illumination ... -
Optical and structural properties of bismuth doped ZnO thin films by sol-gel method: urbach rule as a function of crystal defects
Keskenler, Eyüp Fahri; Aydın, Serdar; Turgut, Güven; Doğan, Seydi (Polish Acad Sciences Inst Physics, 2014)Bismuth (Bi) doped zinc oxide (ZnO:Bi) thin films were prepared on glass substrates by sol gel spin coating technique using homogeneous precursor solutions, and effects of Bi doping on the structural and optical properties ... -
Optical, vibrational, electrical, and electrochemical studies of new plasticized methylcellulose-based solid polymer electrolytes for supercapacitor application
Azemtsop, Theodore Manfo (Wiley, 2023)In this work, new plasticized solid polymer electrolytes (SPEs) are developed using MC (methylcellulose) as a polymer host, and sodium iodide (NaI) as a dopant via the solution casting method. Ethyl carbonate (EC) is used ... -
Optimization of transformer parameters at distribution and power levels with hybrid Grey wolf-whale optimization algorithm
Tören, Murat (Elsevier, 2023)Oil-type transformers (OTT) are used more than dry-type transformers, based on cost in the transmission and distribution of electrical energy. Therefore, this usage density increases the importance of cost in OTT. Weight ... -
An overview on MOSFET drivers and converter applications
Şahin, Mustafa Ergin; Blaabjerg, Frede (Taylor & Francis Ltd., 2021)The metal oxide semiconductor field effect transistor (MOSFET) drivers are among the main components for most power electronic applications. Increasing the switching frequency from kHz to MHz levels, MOSFETs' current, power ... -
Parallel-connected buck-boost converter with FLC for hybrid energy system
Şahin, Mustafa Engin; Okumuş, Halil İbrahim (Taylor & Francis Ltd., 2021)The control of renewable energy sources is more complicated when used as hybrid energy systems. Power electronic circuits are used to convert and store the electrical energy generated from renewable energy sources. However, ... -
Particle swarm optimization algorithm based decision feedback equalizer for underwater acoustic communication
Mahmutoğlu, Yiğit; Türk, Kadir; Tuğcu, Emin (Ieee, 2016)In this paper, we proposed particle swarm optimization (PSO) algorithm based adaptive decision feedback equalizer (DFE) for underwater acoustic communication (UWAC). in the literature, although ocean ambient noise is ... -
A passive acoustic based system to locate leak hole in underwater natural gas pipelines
Mahmutoğlu, Yiğit; Türk, Kadir (Academic Press Inc Elsevier Science, 2018)Underwater natural gas pipelines can be punctured for a variety of reasons, but the most notable are corrosion and aging. This study proposes a novel passive acoustic based system, to detect acoustic signals, locate the ... -
Peak-to-average-power-ratio (PAPR) reduction methods with wavelet transform in MIMO-OFDM
Tören, Murat; Çiflikli, Cebrail (Taylor & Francis Ltd, 2018)This study is based on the comparison of the results with an analysis method recommended for the Peak-to-Average-Power-Ratio (PAPR) reduction methods. This is one of the most significant problems in the Multiple Input-Multiple ... -
Performance comparison of wireless body area network protocol with dual carrier modulations
Karan, Yasin; Kahveci, Salim (Springer, 2023)Wireless body area networks are communication networks between the sensors and hubs in-body, on-body and out-body. IEEE 802.15.6 protocol has been developed for such networks. In this study, modulation techniques proposed ... -
A photovoltaic powered electrolysis converter system with maximum power point tracking control
Şahin, Mustafa Ergin (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 ... -
Pilot assisted channel estimation for asymmetrically clipped optical OFDM over visible light channels
Doğan, Hakan; Şaylı, Osman; Panayırcı, Erdal (Ieee, 2016)The Visible Light Communication(VLC) has drawn significant attention recently for wireless communication in addressing the performance limitations of wireless systems due to the scarcity of bandwidth. in VLC system, the ... -
Polymer nanocomposites for dye-sensitized solar cells
Çalışır, Mehmet Durmuş; Stojanovska, E.; Kilic, A. (University of Ottawa Press, 2018).... -
Positioning of leakages in underwater natural gas pipelines for time-varying multipath environment
Mahmutoğlu, Yiğit; Türk, Kadir (Pergamon-Elsevier Science Ltd, 2020)Underwater natural gas pipelines (UNGPs) used to typically transport natural gas, which is a very important energy resource, can be punctured due to various reasons such as corrosion and shipping/fishing activities. ... -
Probabilistic power flow analysis of power systems with PV and wind using monte carlo method
İskenderoğlu, Abdulkerim; Gül, Ömer (Institute of Electrical and Electronics Engineers Inc., 2023)With the increase in renewable energy systems, the increasing uncertainties in power systems make the analysis with deterministic power flow method insufficient. Probabilistic load flow allows us to see the distribution ... -
Production of ultrafine PVDF nanofiber-/banonet-based air filters via the electroblowing technique by employing PEG as a pore-forming agent
Toptaş, Ali; Çalışır, Mehmet Durmuş; Kılıç, Ali (PMC, 2023)Particles with diameters smaller than 2.5 μm (PM2.5) can penetrate the respiratory system and have negative impacts on human health. Filter media with a porous surface and nanofiber/ nanonet structure demonstrate superior ... -
Progress into lithium-ion battery research
Theodore, Azemtsop Manfo (Sage Publications, 2023)Lithium-ion batteries have transformed our lives and are now found in everything from mobile phones to laptop computers and electric cars. In lithium-ion batteries, an adequate electrolyte was developed using a winding ... -
PV powered hybrid energy storage system control using bidirectional and boost converters
Şahin, Mustafa Ergin; Blaabjerg, Frede (Taylor & Francis Ltd., 2022)The increase of renewable energy generation and the integration with the grid brings some difficulties on the power network worldwide. The main problems on the energy providers are surplus or unregulated energy generation ... -
QPSK-dual carrier modulation for ultra-wideband communication in body area network channels
Karan, Yasin; Kahveci, Salim (2019)Dual carrier modulation (DCM) using orthogonal frequency-division multiplexing (OFDM) improves the performance in multipath fading channels. In the literature DCM is proposed with 16-quadrature amplitude modulation (16QAM) ... -
Received signal strength difference based leakage localization for the underwater natural gas pipelines
Mahmutoğlu, Yiğit; Türk, Kadir (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 ...