Başlık için MÜF, Elektrik-Elektronik Mühendisliği Bölümü Koleksiyonu listeleme
Toplam kayıt 161, listelenen: 117-136
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A passive acoustic based system to locate leak hole in underwater natural gas pipelines
(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
(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 assessment of solar chimney power plants with natural thermal energy storage materials on ground: CFD analysis with experimental validation
(Oxford University Press, 2022)This study interprets the effect of using sand or gravel as energy storage unit in solar chimney power plants. The effect of using low-cost materials is evaluated. Based on the Manzanares pilot plant, a 3D CFD model is ... -
Performance comparison of wireless body area network protocol with dual carrier modulations
(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
(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
(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 ... -
Positioning of leakages in underwater natural gas pipelines for time-varying multipath environment
(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
(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
(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
(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
(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
(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
(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 ... -
Remote leak hole localization for underwater natural gas pipelines
(Ieee, 2017)A vast amount of natural gas pipelines are installed underwater and they can be punctured because of various reasons such as corrosion and their increasing ages. in this study, nature of acoustic signals which are generated ... -
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 ... -
The role of intrinsic atomic defects in a Janus MoSSe/XN (X = Al, Ga) heterostructure: a first principles study
(Institute for Condensed Matter Physics, 2023)The interactions between different layers in van der Waals heterostructures have a significant impact on the electronic and optical characteristics. By utilizing the intrinsic dipole moment of Janus transition metal ... -
Schottky diode fabrication via cold substrate evaporated ag on sol-gel derived ZnO ultra-thin films for semiconductor devices
(S.C. Virtual Company of Phisics S.R.L, 2020)ZnO thin films were grown on glass and SnO2 substrate by using Sol-gel method with a simple, low cost-temperature and high controlled away. ZnO thin films were contacted with Ag in two different temperatures at 200K (cold ... -
Self-Q-switched and multicolor operation of a Tm:LuAG laser
(Optical Soc Amer, 2020)In this paper, we report self-Q-switched (SQS) and three-color operation of an all-solid-state Tm:LuAG laser for the first time to our knowledge. in the experiments, a low-cost 3 W AlGaAs laser diode was used to end-pump ... -
Single and multiple doping effects of silicon-boron and fluorine on ZnO thin films deposited with sol-gel spin coating technique
(Springer, 2014)Undoped, Si and B single doped, Si-B co-doped and Si-B-F triple doped ZnO thin films were grown by sol-gel spin coating method. Effects of these doping elements on microstructural, morphological and optical properties were ...