Fahmi Elsayed

ORCID: 0000-0003-2261-9907
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About
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Research Areas
  • Radio Frequency Integrated Circuit Design
  • Soil Mechanics and Vehicle Dynamics
  • Analog and Mixed-Signal Circuit Design
  • Advanced Power Amplifier Design
  • Mechanical Engineering and Vibrations Research
  • Advancements in Semiconductor Devices and Circuit Design
  • Electrical and Bioimpedance Tomography
  • Advancements in PLL and VCO Technologies
  • Forest Biomass Utilization and Management
  • Microfluidic and Bio-sensing Technologies
  • Vehicle Dynamics and Control Systems
  • Advanced Adaptive Filtering Techniques
  • Structural Response to Dynamic Loads
  • Brake Systems and Friction Analysis
  • Agriculture and Farm Safety
  • Neural dynamics and brain function
  • Advanced DC-DC Converters
  • Speech and Audio Processing
  • Context-Aware Activity Recognition Systems
  • Elbow and Forearm Trauma Treatment
  • Shoulder Injury and Treatment
  • Ultrasound and Cavitation Phenomena
  • EEG and Brain-Computer Interfaces
  • Analytical Chemistry and Sensors
  • Vibration Control and Rheological Fluids

American University of the Middle East
2019-2024

University of Calgary
2008-2018

Minia University
1993-2014

Harbin Engineering University
2013

One of the most significant barriers to broadening use solar energy is low conversion efficiency, which necessitates development novel techniques enhance equipment design. The correct modeling and estimation cell parameters are critical for control, design, simulation PV panels achieve optimal performance. Conventional optimization approaches have several limitations when solving this complicated issue, including a proclivity become caught in some local optima. In study, Growth Optimization...

10.3390/su15107896 article EN Sustainability 2023-05-11

This study assesses quad-band metamaterial perfect absorbers (MPAs) based on a double X-shaped ring resonator for electromagnetic interference (EMI) shielding applications. EMI applications are primarily concerned with the effectiveness values where resonance is uniformly or non-sequentially modulated depending reflection and absorption behaviour. The proposed unit cell consists of resonators, dielectric substrate Rogers RT5870 1.575 mm thickness, sensing layer, copper ground layer....

10.3390/ma16124405 article EN Materials 2023-06-15

In the field of lighter substitute materials, sandwich plate models composite and hybrid foam cores are used in this study. Three core structures: structure then is replaced by a closed open repeating cellular pattern manufactured with 3D printing technology. It finally integrated both into one open-cell filled employed same device (WBW-100E) to conduct three-point bending experiment. The test was conducted based on international standard (ASTM-C 393-00) perform investigation structure....

10.1155/2024/3803199 article EN cc-by Advances in Polymer Technology 2024-01-19

In this paper, a numerical algorithm is developed for the solution of second order linear and nonlinear integro-differential equations. The Haar collocation technique applied to technique, derivative in both equation approximated using functions process integration used obtain expression first unknown function. Some examples are taken from literature checking validation convergence proposed technique. maximum absolute root mean square errors compared with exact at different gauss points....

10.1080/25765299.2020.1863561 article EN cc-by Arab Journal of Basic and Applied Sciences 2021-01-01

This paper proposes a new linearization algorithm, discrete level gain adjustment (DLGA), for linearized high efficiency multi-level delta sigma modulator (ΔΣM)-based transmitter architectures adequate wideband multi-standard software defined radio (SDR) applications. The simple DLGA algorithm is deployed instead of using full digitally predistorted to maintain the linearity employed switching-mode power amplifier (SMPA) with considerable decrease in complexity digital signal processing...

10.1109/jetcas.2013.2284612 article EN IEEE Journal on Emerging and Selected Topics in Circuits and Systems 2013-10-11

This paper presents some of the results our probabilis¬tic cellular automaton (PCA) based epidemic model. It is shown that PCA performs better than deterministic ones. We consider two possible ways interaction relies on a two-way split rules either horizontal or vertical with 2 different probabilities causing more best choices for behavior disease. Our are generalization Hawkins et al done.

10.14569/ijarai.2013.020407 article EN INTERNATIONAL JOURNAL OF ADVANCED RESEARCH IN ARTIFICIAL INTELLIGENCE 2013-01-01

Recent advances in the field of neurorobotics are surveyed with emphasis on areas brain-computer interface systems, brain-based robots and human brain project. A simple proof-of-concept experiment, inspired by mapping into a robot, is described constructed. The capturing electroencephalogram signals was performed through an Emotiv Epoc headset. resulting set-up to control surrogate NAO humanoid while feeding sensory data back subject. various applications this emerging technology discussed...

10.1109/biosmart.2019.8734244 article EN 2019-04-01

In sparse system identification, exploiting the sparsity property improves performance of least mean square (LMS) algorithm. The improvement is achieved by adding an l <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">0</sub> or xmlns:xlink="http://www.w3.org/1999/xlink">1</sub> -norm penalty term to cost function conventional LMS However, when eignenvalue spread autocorrelation input relatively large, algorithm poor. For instance, cannot perform...

10.1109/biosmart.2019.8734211 article EN 2019-04-01

The primary objective of this work is to emulate machine empathy through digitizing human emotions. A simple proofof-concept experiment conducted, where a brain-computer interface (BCI) captures the brain's electroencephalogram (EEG) signals using an Emotiv Epoc headset. two dimensional (2D) intensity (heat) map EEG obtained for pre-defined set emotional stimulus, namely excitement and stress. An artificial neural network (ANN) subsequently used classifying 2D image. key contribution...

10.1145/3459104.3459154 article EN 2021 International Symposium on Electrical, Electronics and Information Engineering 2021-02-19

Performance of adaptive filters highly depends on the eigenvalue spread autocorrelation matrix input signal. For example, performance least-mean-square (LMS) algorithm deteriorates if this is relatively high. Recently, a least lncosh (lncosh) has been proposed to enhance LMS algorithm. The utilizes function error in its cost function. Based this, we propose new for that imposes an l <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">0</inf> - norm...

10.1109/elnano50318.2020.9088847 article EN 2020-04-01

This paper presents a fully integrated CMOS Operational Floating Current Conveyor (OFCC) circuit. The proposed circuit is designed for instrumentation amplifier circuits. OFCC and simulated using Cadence in TSMC 90 m technology kit. aims at two different design goals. first goal to low power consumption (LBW design) while the second high bandwidth (HBW design). total of LBW 1.26 mW with 30 MHz HBW 3 104.6 bandwidth.

10.18178/ijeetc.9.5.317-323 article EN cc-by-nc-nd International Journal of Electrical and Electronic Engineering & Telecommunications 2020-01-01

This work is concerned with the analysis, based on MATLAB simulation, of 1 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">st</sup> and 2 xmlns:xlink="http://www.w3.org/1999/xlink">nd</sup> order Multi-level envelope delta sigma modulators (EDSMs) that are used for high efficiency linearity wireless mobile transmitter architectures an Orthogonal Frequency Division Modulation (OFDM) signal long term evolution (LTE) signal. The analysis measuring...

10.1109/ccece.2014.6901027 article EN 2014-05-01

The study in the present paper was carried out when a fabricated cab added to an agricultural tractor. selected after comprehensive series of experimental tests on variety constructions. noise measurements were taken from tests, while tractor driven either by chassis dynamometer laboratory or farm road surface. results are discussed view point obtaining influence driving parameters (road speed, gear-shift, engine speed and tractive effort) measured inside at operator's head position terms...

10.1260/0263092001492822 article EN Journal of low frequency noise, vibration and active control 2000-06-01

A new Current Feedback Amplifier (CFA) suitable for VLSI applications is presented in two different designs to serve both low power (LBW design) and high bandwidth (HBW) applications. The circuit employing positive current conveyor followed by amplifier buffer achieve very trans-impedance this CFA without needing stack many transistors together at the same time use whole range. proposed designed simulated using 90 nm technology kit cadence. of LBW approximately constant 32 MHz HBW around 107 MHz.

10.1109/ccece.2009.5090258 article EN Canadian Conference on Electrical and Computer Engineering 2009-05-01

A new Operational Floating Current Conveyor (OFCC) circuit is presented. The presented OFCC the first CMOS which suitable for low power VLSI applications. proposed designed to achieve two design goals. a consumption (LBW design) while second high bandwidth (HBW with sacrifice. Both designs are and simulated using TSMC 90nm technology kit in Cadence.

10.1109/idt.2009.5404131 article EN 2009-11-01

This paper examines the performance of composite plates with PVC foam cores and T700/epoxy composites face sheets, steel plate have same areal mass when subjected to Underwater Explosion (UNDEX). The objective this study is evaluate dynamic response those plates. A non-linear numerical analysis underwater explosion phenomena performed using ABAQUS/Explicit finite element code, which provides an important tool that can help engineers designers design construct better structures resist shock...

10.21608/asat.2013.22139 article EN International Conference on Aerospace Sciences and Aviation Technology 2013-05-01

Electron cyclotron resonance heating method of Particle-in-Cell code was used to analyze phenomena, axial kinetic energy, and self-consistent electric field confined electron plasma in ELTRAP device by hydrogen helium background gases. The electromagnetic simulations were performed at a constant power 3.8 V for different RF drives (0.5 GHz- 8 GHz), as well 1 GHz frequency these varying amplitudes (1 V-3.8 V). impacts radial temperatures found maximum 1.8 5 compared other frequencies both...

10.1371/journal.pone.0296845 article EN cc-by PLoS ONE 2024-04-18

Elbow dislocation and instability present significant clinical challenges, necessitating a thorough understanding of the underlying bio-mechanical mechanisms. In this study, quasi-static three-dimensional finite element model human elbow joint is developed to investigate stress distribution stages in under various loading conditions. The simulates different degrees flexion (30°, 45°, 60°, 90°) forearm positions (pronation supination), providing detailed insights into progression dislocation....

10.20944/preprints202405.1982.v1 preprint EN 2024-05-29

<title>Abstract</title> Elbow dislocation and instability present significant clinical challenges, necessitating a thorough understanding of the underlyingbio-mechanical mechanisms. In this study, quasi-static three-dimensional finite element model human elbow joint isdeveloped to investigate stress distribution stages in under various loading conditions. Themodel simulates different degrees flexion (30°, 45°, 60°, 90°) forearm positions (pronation andsupination), providing detailed insights...

10.21203/rs.3.rs-4761515/v1 preprint EN cc-by Research Square (Research Square) 2024-08-09
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