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Toplam kayıt 81, listelenen: 61-70
Recognizing Students and Detecting Student Engagement with Real-Time Image Processing
(MDPI, 2022)
With COVID-19, formal education was interrupted in all countries and the importance of distance learning has increased. It is possible to teach any lesson with various communication tools but it is difficult to know how ...
Microwave-Based Electrochemical Sensor Design by SRR Approach for ISM Sensing Applications
(Hindawi Limited, 2022)
This paper presents a transmission line and a split ring resonator (SRR) based sensor structure with a high sensitivity capacity to discriminate various methanol mixtures. The height of the dielectric layer and thickness ...
Rapid Design of 3D Reflectarray Antennas by Inverse Surrogate Modeling and Regularization
(Institute of Electrical and Electronics Engineers Inc., 2023)
Reflectarrays (RAs) exhibit important advantages over conventional antenna arrays, especially in terms of realizing pencil-beam patterns without the employment of the feeding networks. Unfortunately, microstrip RA ...
Modüler çok seviyeli dönüştürücüler için genelleştirilmiş bir kapasitör gerilim dengeleme şeması ve örnekleme frekansı analizi
(Gazi Universitesi, 2023)
Modüler çok seviyeli dönüştürücüler (MÇD), modüler yapısı, yüksek verimliliği ve kaliteli çıkış dalga formu sayesinde orta ve yüksek güçlü endüstriyel uygulamalarda sıklıkla kullanılmaktadırlar. MÇD’ler literatürde yer ...
Data-Driven Surrogate-Assisted Optimization of Metamaterial-Based Filtenna Using Deep Learning
(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 ...
A Wideband Highly Efficient Omnidirectional Compact Antenna for WiMAX/Lower 5G Communications
(Wiley, 2023)
Microstrip patch antenna (MPA) is widely used for different wireless communications such as WiMAX and fifth generation (5G). In this paper, a wideband, highly efficient, omnidirectional, compact novel patch antenna has ...
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 ...
Prevention of Wave Propagation via Circular Arrangement of Seismic Metamaterials Formed with Concrete Piles
(MDPI, 2023)
It is known that the low frequencies of seismic surface waves have a destructive effect. The main purpose of seismic metamaterials is to protect structures from seismic waves at low frequencies, especially in a wide band. ...
Design and Characterization of a Compact Four-Element Microstrip Array Antenna for WiFi-5/6 Routers
(Wiley, 2023)
The WiFi-5 band was the most popular WiFi band until the Federal Communications Commission (FCC) announced a new spectrum of 6 GHz WiFi (5.925-7.125 GHz) for unlicensed users. Our proposed work is about to cover both the ...
Görüntü İşleme Yoluyla Otonom Tren-Hayvan Kazası Önleme Sistemi
(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 ...