ORCID "0000-0001-7127-5915" Fakülteler için listeleme
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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; Tarı, Özlem; 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.; Tarı, 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 ... -
Calculation of phase diagram and the thermodynamic quantities by the Landau mean field model close to the solid - liquid and solid - solid transitions in n-paraffins
Yurtseven, Hamit; Tari, Ozlem (TAYLOR & FRANCIS LTD, 2024)We calculate the phase diagrams and predict the temperature dependence of the thermodynamic quantities at high pressures for the solid - liquid and solid - solid transitions in n-paraffins. This calculation is performed ... -
Calculation of the Phase Diagrams (T - X and T - P) and the Thermodynamic Quantities for the Solid - Liquid Equilibria in n-tridecane
Tari, O.; Yurtseven, H. (International Journal of Thermodynamics, 2023)The solid – liquid equilibria in n-tridecane is investigated by calculating phase diagrams and the thermodynamic quantities using the Landau phenomenological model. By expanding the free energy in terms of the order parameter ... -
Calculation of the T-X phase diagram and the thermodynamic quantities for the binary mixtures of Tetradecane plus Hexadecane using the Landau mean field model
Yurtseven, Hamit; Tari, Ozlem (TAYLOR & FRANCIS LTD, 2023)The Landau model is used to calculate the T - X phase diagram and the temperature dependence of the thermodynamic quantities near the phase transitions in the binary mixtures of tetradecane + hexadecane. The phase line ... -
Data-Driven Surrogate-Assisted Optimization of Metamaterial-Based Filtenna Using Deep Learning
Mahouti, Peyman; Belen, Aysu; Tarı, Özlem; 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 ... -
Design and Realization of Broadband Active Inductor Based Band Pass Filter
Belen, Aysu; Belen, Mehmet A.; Palandoken, Merih; Mahouti, Peyman; Tari, Ozlem (WILEY, 2023)With the latest developments in the wireless communication systems, the alternative design methodologies are required for the broadband design of microwave components. In this paper, a compact broad band pass filter (BPF) ... -
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; Tarı, Özlem (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 ... -
Pressure Effect on Thermodynamic Quantities for the Solid-Liquid Phase Transition in n-tridecane, n-hexadecane and n-octadecane
Tari, O.; Yurtseven, H. (International Journal of Thermodynamics, 2024)The pressure effect is investigated regarding the solid - liquid equilibria (SLE) in n-alkanes. Using the Landau phenomenological model, the pressure dependences of the thermodynamic functions are predicted and the phase ... -
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; Tarı, Özlem; 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.; Tarı, 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, ...