Yazar "Karaaslan, Muharrem" için listeleme
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Enhanced Sensing Capacity of Terahertz Triple-Band Metamaterials Absorber Based on Pythagorean Fractal Geometry
Mazare, Alin Gheorghita; Abdulkarim, Yadgar I.; Karim, Ayoub Sabir; Bakır, Mehmet; Taouzari, Mohamed; Muhammadsharif, Fahmi F.; Appasani, Bhargav; Altıntaş, Olcay; Karaaslan, Muharrem; Bizon, Nicu (MDPI, 2022)A new design of a triple band perfect metamaterial absorber based on Pythagorean fractal geometry is proposed and analyzed for terahertz sensing applications. The proposed design showed an enhanced sensing performance and ... -
Enhancement of image quality by using metamaterial inspired energy harvester
Alkurt, Fatih Özkan; Altıntaş, Olcay; Özaktürk, Melikşah; Karaaslan, Muharrem; Akgöl, Oğuzhan; Ünal, Emin; Sabah, Cumali (Elsevier, 2020)Metamaterial energy harvester based subwavelength imaging structure is presented. Besides, 2x2 array patch antenna is designed to create incident radiated signal towards the proposed harvester structure. Harvested energy ... -
Exhibition of polarization conversions with asymmetric transmission theory, natural like chiral, artificial chiral nihility and retrieval studies for K- and C-band radar applications
Derin, Oğuz; Karaaslan, Muharrem; Ünal, Emin; Karadağ, Faruk; Altıntaş, Olcay; Akgöl, Oğuzhan (Indian Academy of Sciences, 2019)In this study, asymmetric transmission, natural chirality phenomena and a retrieval study with chiral metamaterials (MTMs) are numerically and experimentally focussed, investigated and discussed by examining the polarization ... -
Experimental verification of phononic crystal based on square arrays of cylindrical holes against seismic vibrations in full-scale systems: modeling, sensing and signal processing of seismic vibrations
Kaçın, Selçuk; Öztürk, Murat; Sevim, Umur Korkut; Karaaslan, Muharrem; Özer, Zafer; Akgöl, Oğuzhan; Mert, Bayram Ali; Ünal, Emin (Springer, 2021)In this study, phononic crystals reducing the earthquake effects will be determined and prototypes will be constructed which can give the opportunity to reduce the effects of seismic waves. Furthermore, test results will ... -
Experimental work on mechanical, electromagnetic and microwave shielding effectiveness properties of mortar containing electric arc furnace slag
Öztürk, Murat; Akgöl, Oğuzhan; Sevim, Umur Korkut; Karaaslan, Muharrem; Demirci, Mustafa; Ünal, Emin (Elsevier, 2018)It is well known that one of the widely used structural materials is ordinary cement mortar. Whereas the mechanical properties are sufficient as structural materials, its shielding effectiveness and prevention properties ... -
Extremely-broad band metamaterial absorber for solar energy harvesting based on star shaped resonator
Bağmancı, Mehmet; Karaaslan, Muharrem; Ünal, Emin; Akgöl, Oğuzhan; Sabah, Cumali (Springer, 2017)A new metamaterial absorber (MA) is investigated and shown numerically for solar energy harvesting for future solar cell applications. The structure consists of two metals and one dielectric layer having different thicknesses. ... -
Farklı Konfigürasyonlarda Çelik Metamalzemeler Kullanarak Sismik Etkilerin Azaltılması
Kaçın, Selçuk; Sevim, Umur Korkut; Öztürk, Murat; Karaaslan, Muharrem; Demirci, Mustafa; Akgöl, Oğuzhan; ünal, Emin; Özer, Zafer; Başar, Mustafa Tunahan; Alkurt, Maide Erdoğan; Alkurt, Fatih Özkan; Mert, Bayram Ali; Kaya, Şeyda (Türk deprem araştırma dergisi (Online), 2021)Depremlerin yıkıcı etkilerini azaltmak için yapılan çalışmalar, son zamanlarda üzerinde durulan araştırma konuları arasındadır. Bu çalışmada, kare, üçgen, sinüs ve daire olmak üzere dört farklı saha dizisinde çelik met ... -
Filtering two-element waveguide antenna array based on solely resonators
Mahmud, Rashad H.; Awl, Halgurd N.; Abdulkarim, Yadgar I.; Karaaslan, Muharrem; Lancaster, Michael J. (Elsevier, 2020)This paper presents a design approach of a filtering antenna arrays based on the coupling matrix theory. The approach generates filtering functionality using the resonating array radiating elements and the resonator based ... -
Fire Detection Behind a Wall by using Microwave Techniques
Alkurt, Fatih Özkan; Bağmancı, Mehmet; Karaaslan, Muharrem; Bakır, Mehmet; Altıntaş, Olcay; Karadağ, Faruk; Akgöl, Oğuzhan; Ünal, Emin (American Institute of Physics Inc., 2018)In this work, detection of the fire location behind a wall by using microwave techniques is illustrated. According to Planck's Law, Blackbody emits electromagnetic radiation in the microwave region of the electromagnetic ... -
Fluid, Strain and Rotation Sensing Applications by Using Metamaterial Based Sensor
Altıntaş, Olcay; Aksoy, Murat; Akgöl, Oğuzhan; Ünal, Emin; Karaaslan, Muharrem; Sabah, Cumali (Electrochemical Society Inc., 2017)We propose a design of a metamaterial based sensor to be used in various applications including micro-fluid, strain and rotation sensing. The structure has a simple geometry composed of a single circular split ring resonator ... -
Fractal metamaterial based multiband absorber operating in 5G regime
Baqir, Muhammad Abuzar; Latif, H.; Altıntaş, Olcay; Akhtar, Majid Niaz; Karaaslan, Muharrem; Server, H.; Hameed, Musab; Idrees, Nazar Muhammad (Elsevier, 2022)Multiband absorption is the interest of the microwave communities due to several applications in sensing, filtering, and stealth. Usually, the stacking of metal and dielectric multilayered structures form a multiband ... -
Görüntü İşleme Yoluyla Otonom Tren-Hayvan Kazası Önleme Sistemi
Baltacıoğlu, Mustafa; Başar, Mustafa Tunahan; Karaaslan, Muharrem; Özer, Zafer; Öcal, Sefa (Demiryolu Mühendisleri Derneği, 2023)Çalışmada tren yolu ulaşımlarında yol güzergâhı üzerinde bulunan hayvan ölümlerinin önlenmesi üzerine odak sağlanmıştır. Hemzemin geçitlerde bulunan bariyer sistemleri raylı ulaşım araçlarının çarpışma kazalarını önleyici ... -
Grease oil humidity sensor by using metamaterial
Dalgaç, Şekip; Furat, Murat; Karaaslan, Muharrem; Akgöl, Oğuzhan; Karadağ, Faruk; Zile, Mehmet; Bakır, Mehmet (Taylor and Francis, 2020)Interaction between water and lubrication grease oil is not desirable, but it is not inevitable. The operational life of the machine component is influenced by humid grease oil. Metameterial-based transmission line sensor ... -
Ground plane design configuration estimation of 4.9 GHz reconfigurable monopole antenna for desired radiation features using artificial neural network
Alkurt, Fatih Özkan; Özdemir, Merve Erkınay; Akgöl, Oğuzhan; Karaaslan, Muharrem (Wiley, 2021)This paper presents a system based on artificial neural network (ANN) that predicts ground plane design for desired radiation properties of a monopole antenna with operation band of 4.8 to 5 GHz. The operating frequency ... -
High Sensitive Metamaterial Sensor for Water Treatment Centres
Bakır, Mehmet; Dalgaç, Şekip; Ünal, Emin; Karadağ, Faruk; Demirci, Mustafa; Köksal, Ahmet Sertol; Akgöl, Oğuzhan; Karaaslan, Muharrem (Springer International Publishing Ag, 2019)In this study, a high sensitive metamaterial sensor has been designed to detect quality of water for water treatment centre. The water samples have been obtained and electrical properties have been measured in microwave ... -
Highly sensitive metamaterial-based microwave sensor for the application of milk and dairy products
Abdulkarim, Yadgar I.; Bakır, Mehmet; Yaşar, İbrahim; Ulutaş, Hasan; Karaaslan, Muharrem; Alkurt, Fatih Özkan; Sabah, Cumali; Dong, Jian (Optica Publishing Group (formerly OSA), 2022)In this work, a novel, to the best of our knowledge, metamaterial-based microwave sensor is designed, numerically simulated, and experimentally tested for milk and dairy products in the frequency range of 8 to 9 GHz. The ... -
Hypersensitized Metamaterials Based on a Corona-Shaped Resonator for Efficient Detection of Glucose
Abdulkarim, Yadgar I.; Muhammadsharif, Fahmi F.; Bakır, Mehmet; Awl, Halgurd N.; Karaaslan, Muharrem; Deng, Lianwen; Huang, Shengxiang (MDPI, 2021)In this work, a new design for a real-time noninvasive metamaterial sensor, based on a corona-shaped resonator, is proposed. The sensor was designed numerically and fabricated experimentally in order to be utilized for ... -
Implementation of a perfect metamaterial absorber into multi-functional sensor applications
Akgöl, Oğuzhan; Karaaslan, Muharrem; Ünal, Emin; Sabah, Cumali (World Scientific Publishing Co. Pte Ltd., 2017)Perfect metamaterial absorber (MA)-based sensor applications are presented and investigated tigated in the microwave frequency range. It is also experimentally analyzed and tested to verify the behavior of the MA. Suggested ... -
Improved line–line method for propagation constant measurement of reflection-asymmetric networks
Hasar, Uğur Cem; Öztürk, Hamdullah; Korkmaz, Hüseyin; İzgınlı, Mücahit; Karaaslan, Muharrem (Elsevier, 2022)A new formalism using line-line measurements is proposed to improve the accuracy of propagation constant measurement of reflection-asymmetric networks using non-calibrated scattering (S-) parameters. For this measurement, ... -
Investigation of cotton fabric composites as a natural radar-absorbing material
Ayan, Muhammet Çağrı; Kiriş, Serap; Yapıcı, Ahmet; Karaaslan, Muharrem; Akgöl, Oğuzhan; Altıntaş, Olcay; Ünal, Emin (Emerald Group Publishing Ltd., 2020)Purpose The purpose of this paper is to investigate cotton fabric behavior that is exposed to radar waves between selected operation frequencies as an alternative radar-absorbing material (RAM) response. Cotton fabric ...
