Browsing Makale Koleksiyonu by Title
Now showing items 152-171 of 238
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Nesnelerin İnterneti (Iot) Uygulamaları İçin Polarizasyondan Bağımsız Metamalzeme Emici Tabanlı Enerji Hasatlama
(Kahramanmaraş Sütçü İmam Üniversitesi, 2022)Bu çalışmada Nesnelerin İnterneti (IoT) için metamalzeme emici tabanlı enerji hasatlayıcı önerilmiştir. Önerilen metamalzeme yapının ön yüzeyi bakır rezonatör ile dielektrik malzemeden ve arka yüzey de tamamen bakırdan ... -
New generation chiral metamaterials based on omega resonators with small and smooth chirality over a certain frequency band
(World Scientific Publishing Co. Pte Ltd, 2016)In this paper, we have designed, simulated and analyzed a new generation chiral metamaterials (MTMs) with two geometries. There are various types of chiral MTM structures in the literature and almost all of them are indented ... -
New generation chiral metamaterials with small and flat chirality over a certain frequency band based on circular split ring resonators for microwave filter applications
(World Scientific Publishing Co. Pte Ltd, 2016)There are many studies in literature on chiral metamaterials (MTMs) to obtain large chiralities with dynamic optical activities. With this regard, this new generation planar chiral MTM study focuses on a small, non-dispersive ... -
A Nondestructive Method for Determining Fiber Content and Fiber Ratio in Concretes Using a Metamaterial Sensor Based on a V-Shaped Resonator
(Springer, 2019)A micro sensor based on a V-shaped resonator (VSR) is implemented for the purpose of determining fiber content and ratio in construction materials as a nondestructive method. Concrete is investigated as the construction ... -
Nonlinear optical performance and optical limiting of germanate glasses modified with PbF2 and B2O3 induced by nanosecond pulsed laser
(Elsevier, 2022)In this work, GeO2 modified with PbF2 and B2O3 glasses were synthesized by conventional melting and quenching technique to investigate the effect of modifier network on its linear and nonlinear optical properties. Linear ... -
A novel adaptive switching method to reduce DC-Link capacitor ripple in PV based grid-connected inverter
(Pergamon-Elsevier Science, 2018)In this paper, the developed switching method has been developed to generate trigger signals for the voltage source inverter (VSI) to reduce the current harmonics on the DC-link capacitor. In the novel switching method, ... -
A Novel Ensemble Wind Speed Forecasting System Based on Artificial Neural Network for Intelligent Energy Management
(Institute of Electrical and Electronics Engineers Inc., 2024)Accurate and consistent wind speed forecasting is vital for efficient energy management and the market economy. Wind speed is non-linear, non-stationary, and irregular, so it is very difficult to forecast. There are many ... -
Novel measurement technique to detect breast tumor based on the smallest form factor of UWB patch antenna
(Cambridge University Press, 2022)A small ultra-wideband (UWB) patch antenna for microwave breast imaging (MWI) applications is shown off in this paper. However, to improve the antenna performance relating to the bandwidth (BW), the radiating element of ... -
Novel Metamaterials-Based Hypersensitized Liquid Sensor Integrating Omega-Shaped Resonator with Microstrip Transmission Line
(Mdpi, 2020)In this paper, a new metamaterials-based hypersensitized liquid sensor integrating omega-shaped resonator with microstrip transmission line is proposed. Microwave transmission responses to industrial energy-based liquids ... -
A Novel Nearest Level Modulation Method with Increased Output Voltage Quality for Modular Multilevel Converter Topology
(Wiley, 2022)The modular multilevel converter (MMC) topology is gaining more interest because of its modular design, high efficiency, and scalable voltage levels in medium- and high-power industrial applications, where the nearest level ... -
Octagonal Shaped Metamaterial Absorber Based Energy Harvester
(Kaunas University of Technology, 2018)In this study, a novel octagonal shaped metamaterial based broadband absorber is proposed for energy harvesting at WIMAX wireless communication band. The proposal has an absorption of 99.97 % at 5.5 GHz with a bandwidth ... -
Optimal design of transmitarray antennas via low-cost surrogate modelling
(Nature Research, 2023)Over the recent years, reflectarrays and transmitarrays have been drawing a considerable attention due to their attractive features, including a possibility of realizing high gain and pencil-like radiation patterns without ... -
Optimizing the Gain and Directivity of a Microstrip Antenna with Metamaterial Structures by Using Artificial Neural Network Approach
(Springer, 2021)The purpose of this study is to improve the gain and directivity of the microstrip patch antenna by means of metamaterial (MTM) structures. As it is known, antennas have power densities in a certain direction, and the ... -
Özelleştirilmiş Uygunluk Fonksiyonu Tabanlı Su Döngüsü Algoritması ile PID Parametrelerinin Optimizasyonu
(Avrupa Bilim ve Teknoloji Dergisi, 2020)Endüstriyel alanda kullanılan kontrolcüler arasında PID kontrolcü, en yaygın olanıdır. Bunun önemli sebebi olarak bu kontrolcüde kullanılan parametre sayısının az olması ve parametrelerinin her birinin uygulanan sistem ... -
PANI-coated YIG/CFO hybrid composites as advanced electromagnetic wave absorber through X-band
(Elsevier, 2023)Polyaniline (PANI)-coated Y3Fe5O12(YIG)/CoFe2O4(CFO) hybrid composites were synthesized via sol-gel and oxidative polymerization methods to achieve advanced microwave absorption properties. The structural, morphological, ... -
Pattern reconfigurable metasurface to improve characteristics of low profile antenna parameters
(Wiley, 2019)This article proposes a mushroom-shaped electromagnetic band gap (EBG) structure for the antenna parameter enhancement of low profile antennas in 5 to 15 GHz regime. Three different type antennas including a dipole antenna, ... -
Pattern Shaping by Utilizing EBG Phase Response and Its Use in MIMO Radio Altimeter Antenna Design for Aircraft
(MDPI, 2023)In this study, a novel pattern shaping technique is presented and applied to the uniquely designed multiple-input multiple-output (MIMO) radio altimeter antenna, acquiring area gain. Inspired by the behavior of the perfect ... -
PCB mikroşerit dipol ve monopol antenlerin kullanıldığı çok portlu sistemlerde metamalzeme ile yalıtımın iyileştirilmesi
(2018)Bu çalışmada, dipol ve monopol antenlerin bulunduğu iki portlu anten sistemlerindeki izolasyonuniyileştirilmesi gerçeklenmiştir. Bu amaç için 2.4 GHz ve 6 GHz frekanslarında çalışan dipol antenler ile2.438 GHz ve 1.706 GHz ... -
Perfect metamaterial absorber-based energy harvesting and sensor applications in the industrial, scientific, and medical band
(SPIE-Soc Photo-Optical Instrumentation Engineers, 2015)An electromagnetic (EM) energy harvesting application based on metamaterials is introduced. This application is operating at the the industrial, scientific, and medical band (2.40 GHz), which is especially chosen because ... -
Performance & emission analysis of HHO enriched dual-fuelled diesel engine with artificial neural network prediction approaches
(Elsevier, 2020)Most of the studies on conventional fuel types that can be used in internal combustion engines have been made in order to improve performance values. Nowadays environmental problems have shown that emission values are more ...
