Brain tumor is a severe cancer and life-threatening disease. Thus, early detection crucial in the process of treatment. Recent progress field deep learning has contributed enormously to health industry medical diagnosis. Convolutional neural networks (CNNs) have been intensively used as approach detect brain tumors using MRI images. Due limited dataset, algorithms CNNs should be improved more efficient. one most known techniques improve model performance Data Augmentation. This paper...

This paper presents an optimal method for optimizing network reconfiguration problems in a power distribution system order to enhance reliability and reduce losses. Network can be viewed as optimization problem involving set of criteria that must reduced when adhering various constraints. The energy not supplied (ENS) during permanent faults active losses are the objective functions optimized this study phase. These objectives expressed mathematically will integrated into algorithms used...

In the Internet of Things (IoT), a lot constrained devices are interconnected. The data collected from those can be target cyberattacks. this paper, lightweight cryptosystem that efficiently implemented in highly IOT is proposed. algorithm mainly based on Advanced Encryption Standard (AES) and new chaotic S-box. Since its adoption by IEEE 802.15.4 protocol, AES embedded platforms have been increasingly used. main cryptographic properties generated S-box validated. randomness has confirmed...

Abstract In this article, a novel shaped metamaterial sensor is presented for the recognition of various oils, fluids, and chemicals using microwave frequency. The performance designed structure has been studied both theoretically experimentally, it works well. A new sample holder convenient operation created located just behind structure. results study performed better than those prior liquids sensing studies. Various designs were explored Genetic Algorithm (GA), embedded in Computer...

By bringing smart and advanced solutions, the Internet of Things (IoT) has opened up new dimensions innovative services processing power for contemporary living standards. IoT a wide range devices communication entities as result widespread applications these services, making network management challenging task. Therefore, it is critical to redesign network’s management. The inherent programmability centralized capabilities software-defined networking (SDN) make simpler, enable abstraction,...

A unique shaped metamaterial sensor is proposed for detecting a wide range of pure and adulterated fuels oils. The functionality the designed structure has been examined both theoretically practically ways, results show that it performs incredibly well. new sample holder built more convenient functioning, attached directly behind constructed structure. In field research on liquids sensing, purpose this work was to present an alternative methodology. CST microwave studio software used test...

An integrated massive multiple-input multiple-output (mMIMO) antenna system loaded with metamaterial (MTM) is proposed in this article for fifth-generation (5G) applications. Besides, achievement of duple negative (DNG) characteristics using a compact complementary split-ring resonator (SRR), broad epsilon (ENG) more than 1 GHz bandwidth (BW), and near-zero refractive index (NZRI) features are presented. The mMIMO consists eight subarrays three layers that operate the 5G mind band at 3.5...

Metamaterial absorbers are very attractive due to their significant absorption behavior at optical wavelengths, which can be implemented for energy harvesting, plasmonic sensors, imaging, modulators, photovoltaic detectors, etc. This paper presents a numerical study of an ultra-wide-band double square ring (DSR) metamaterial absorber (MMA) the complete visible wavelength region, is designed with three-layer (tungsten-silicon dioxide-tungsten) substrate material. Due symmetricity,...

In this article, a symmetric split ring resonator (SRR) based metamaterial (MTM) is presented that exhibits three resonances of transmission coefficient (S

This paper presents a hardware implementation upon Field Programmable Gate Array (FPGA) of improved Vector Control Strategies (VCSs) based on Fuzzy Logic System (FLS) grid-connected wind energy conversion system. Usually, the classical VCS is fixed-gain Proportional Integral Derivative (PID) controllers, which are known to exhibit limited performance against nonlinear behavior systems, such as rapid fluctuations speed and uncertainties system parameters. In order overcome this limitation, an...

This paper introduces a perfect metamaterial absorber (MMA) achieving exceptional electromagnetic signal absorption at application-oriented frequencies of 2.40 and 3.50 GHz in addition to 6.09 GHz. The MMA exhibits rates 99.85, 98.6, 96.7%, with high shielding effectiveness (SE) 36.44, 32.58, 31.13 dB against interference (EMI) those frequencies. structure the copper resonator on FR4 substrate allows on-design frequency switching from 3.43 3.70 5.65 6.55 GHz, respectively. structural...

The complete lifting of travel restrictions to KSA takes place after 3rd January 2021. There are fears that will confront a new COVID-19 wave, especially when the most countries resumed international flights suffering now from second surge. Fortunately, more than one Covid-19 Vaccine have been rolled out. However, herd immunity could be reached only through widespread vaccination. vaccines need time properly protective, in front people refusing get vaccinated. A modified multi-stage SEIR...

This article proposed a new triple-band transmission block metamaterial (MTM) for 5G mm-wave applications. The peak transmission-blocking attributes are achieved at 27.09 GHz, 38.71 and 41.81 GHz frequency by interconnected square split ring resonators (ISSRR). A thin Rogers RT5880 substrate material of thickness 0.79 mm is employed to design the MTM structure, unit cell dimension 5 × mm2. designed shows −10 dB coefficient (S21) from 24.60 28.47 36.50–39.65 40.77–44 bands. evolution,...

A novel compact metamaterial (MM) energy harvester optimized for Wi-Fi frequencies (2.4 GHz and 5.8 GHz) is introduced in this study. The exhibits polarization insensitivity versatility across various incident angles. harvesting (EH) efficiency evaluated using numerical simulations practical experiments. design features ring octagonal resonators constructed with Rogers RT 5880 Substrate, each resonator incorporating a strategically placed gap lumped elements. structure's impedance...

This article presents a polarization-insensitive, negative indexed inverted U-shaped flexible metamaterial absorber based on microstructure resonator for multi-band energy harvester application. The vertical joint and central split ring together create significant resonance covering three consecutive L-, S-, C-band absorption peaks four frequencies: 1.975 GHz with 99.99% absorption, 2.85 99.28% 5.265 96.79% 5.5 89.12% absorption. design has rare double feature at GHz, while balanced...