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Now showing items 101-108 of 108
Causality Analysis for COVID-19 among Countries Using Effective Transfer Entropy
(MDPI, 2022)
In this study, causalities of COVID-19 across a group of seventy countries are analyzed with effective transfer entropy. To reveal the causalities, a weighted directed network is constructed. In this network, the weights ...
Enhanced Sensing Capacity of Terahertz Triple-Band Metamaterials Absorber Based on Pythagorean Fractal Geometry
(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 ...
Influences of Pb Substitution on Microstructure, Electrical Transport, and Mechanical Properties of Single-Crystal FeTe0.5Se0.5 Superconductors
(Springer, 2022)
In this work, single crystals of superconducting Fe1-xPbxTe0.5Se0.5 (x = 0.0, 0.01, 0.05, and 0.1) were grown by self-flux method. The structural, electrical, and mechanical properties of prepared samples were investigated. ...
Titanium carbide coating to improve surface characteristic, wear and corrosion resistance of spheroidal graphite cast irons
(Elsevier, 2022)
In this study, titanium carbide (TiC) coatings were grown on the surface of a spheroidal graphite cast iron (SGI) via thermo-reactive diffusion (TRD) using powder-pack processing at 800 °C, 850 °C and 900 °C for 4 h. The ...
Simulated and experimental studies of a multi-band symmetric metamaterial absorber with polarization independence for radar applications
(Institute of Physics, 2022)
We develop a simple new design for a multi-band metamaterial absorber (MTMA) for radar applications. Computer Simulation Technology (CST) Studio Suite 2018 was used for the numerical analysis and absorption study. The ...
Surrogate Based Design Optimization of Multi-Band Antenna
(Institute of Electrical and Electronics Engineers Inc., 2021)
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 is studied. For this mean firstly, by using Latin-Hyper ...
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 ...
A study on electronically controllable beamforming monopole antenna for telecommunication applications
(Taylor and Francis, 2022)
The design, analysis, and prototyping of an electronically controllable beamforming monopole antenna (ECBMA), which could be a good candidate for ceil-mounted wireless telecommunication systems, are reported. The proposed ...
