Browsing WoS İndeksli Yayınlar Koleksiyonu by ORCID "0000-0001-7127-5915"
Now showing items 1-9 of 9
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3D EM data driven surrogate based design optimization of traveling wave antennas for beam scanning in X-band: an application example
Belen, Aysu; Gunes, Filiz; Palandoken, Merih; Tari, Ozlem; Belen, Mehmet A.; Mahouti, Peyman (WINEF, 2022)In this paper, design and optimization of a microstrip elliptic traveling wave antenna (TWA) are presented for the beam scanning in X-band as an application of 3D data driven surrogate based design optimization technique. ... -
Calculation of Magnetization and Magnetic Susceptibility Close to Magnetic Phase Transitions in (CH3)(2)(NH2FeNiII)-Ni-III(HCOO)(6) and (CH3)(2)(NH2FeCuII)-Cu-III(HCOO)(6)
Yurtseven, H.; Tari, Özlem (Springer/Plenum Publishers, 2020)We study the temperature and magnetic field dependence of the magnetization (M) and the inverse susceptibility (chi(-1)) in the metal-organic frameworks, in particular, for (CH3)(2)(NH2FeNiII)-Ni-III(HCOO)(6) (DMFeNi) and ... -
Data-Driven Surrogate-Assisted Optimization of Metamaterial-Based Filtenna Using Deep Learning
Mahouti, Peyman; Belen, Aysu; Tari, Ozlem; Belen, Mehmet Ali; Karahan, Serdal; Koziel, Slawomir (MDPI, 2023)In this work, a computationally efficient method based on data-driven surrogate models is proposed for the design optimization procedure of a Frequency Selective Surface (FSS)-based filtering antenna (Filtenna). A Filtenna ... -
Gain Enhancement of a Traditional Horn Antenna using 3D Printed Square-Shaped Multi-layer Dielectric Lens for X-band Applications
Belen, Aysu; Mahouti, Peyman; Gunes, Filiz; Tari, Ozlem (Applied Computational Electromagnetics Society (ACES), 2021)In this work, gain of a traditional horn antenna is enhanced up to 2.9 dB over X-band using 3D printed square-shaped multi-layer lens. For this purpose, firstly the multi-layer lenses are designed using Invasive Weed ... -
Magnetic Transitions in Two Novel Mixed-Valence Iron(Ii)–Iron(Iii) Metal Formate Frameworks : Two Sublattice Model
Yurtseven, Hasan Hamit; Tarı, Özlem (Elsevier B.V., 2022)We study the two-sublattice model in the mean field theory by expanding the Gibbs free energy in terms of the magnetizations M1 (Mup) and M2 (Mdown) with the quadratic coupling M12M22 (quadrupolar interactions) for the ... -
Phase transitions in molecular crystals as an example of coupled systems studies
Yurtseven, H.; Tari, O. (AMER SCIENTIFIC PUBLISHERS, 2014)Molecular crystals exhibit phase transitions under various temperature, pressure and concentration conditions. Thermodynamic quantities such as the specific heat, thermal expansion and isothermal compressibility show ... -
Surrogate Based Design Optimization of Multi-Band Antenna
Tarı, Özlem; Aysu, Belen; Mahouti, Peyman; Belen, Mehmet Ali (Institute of Electrical and Electronics Engineers Inc., 2021)In this work, design optimization process of a multiband antenna via the use of Artificial Neural Network (ANN) based surrogate model and meta-heuristic optimizers is studied. For this mean firstly, by using Latin-Hyper ... -
Surrogate-Based Design Optimization of Multi-Band Antenna
Belen, Aysu; Tari, Ozlem; Mahouti, Peyman; Belen, Mehmet A.; Caliskan, Alper (Applied Computational Electromagnetics Society (ACES), 2022)In this work, design optimization process of a multi-band antenna via the use of artificial neural network (ANN) based surrogate model and meta-heuristic optimizers are studied. For this mean, first, by using Latin-Hyper ... -
Thermodynamic study on the magnetic transition and structural phase transition in [(CH3)(2)NH2][Na0.5Fe0.5(HCOO)(3)] by using the Landau phenomenological model
Yurtseven, H.; Tari, Özlem (Amer Inst. Physics, 2020)In this study, we apply the Landau phenomenological model to describe magnetic transition and structural phase transition in a metal formate framework (MOF) of the ferromagnetic [(CH3)(2)NH2][Na0:5Fe0:5(HCOO)(3)], namely, ...
