A
Ahmed Sayed
Researcher at Ain Shams University
Publications - 100
Citations - 614
Ahmed Sayed is an academic researcher from Ain Shams University. The author has contributed to research in topics: Medicine & Internal medicine. The author has an hindex of 11, co-authored 65 publications receiving 462 citations. Previous affiliations of Ahmed Sayed include Bascom Palmer Eye Institute & West Virginia University.
Papers
More filters
Journal ArticleDOI
Two-stage ultrawide-band 5-W power amplifier using SiC MESFET
Ahmed Sayed,Georg Boeck +1 more
TL;DR: In this article, a two-stage 5-W broad-band amplifier covering the frequency range from 10 MHz to 2.4 GHz is described. But the authors do not consider the use of a GaAs MESFET as the power stage.
Journal ArticleDOI
Nonlinear characterization of breast cancer using multi-compression 3D ultrasound elastography in vivo.
TL;DR: The proposed elastographic techniques can be used as a noninvasive quantitative characterization tool for breast cancer, with the capability of visualizing and separating the masses in a three dimensional space, and may reduce the number of unnecessary painful breast biopsies.
Proceedings ArticleDOI
Broadband GaN switch mode class E power amplifier for UHF applications
TL;DR: In this paper, a broad-band class E power amplifier (PA) is designed, manufactured and measured using a GaN HEMT device, achieving a maximum output power of 49 W with 16.3 dB power gain at the 1 dB compression point.
Journal ArticleDOI
The neutrophil-to-lymphocyte ratio in Alzheimer's disease: Current understanding and potential applications.
Ahmed Sayed,Eshak I. Bahbah,Serageldin Kamel,George E. Barreto,Ghulam Md Ashraf,Mohamed Elfil +5 more
TL;DR: The inflammatory response in AD is discussed, and how this response is reflected in the counts of different immune cells, mainly neutrophils and lymphocytes which can be implemented in the utility of NLR as a diagnostic tool in AD patients.
Proceedings ArticleDOI
Novel Broadband Wilkinson Power Combiner
TL;DR: A new hybrid wideband architecture of a two-stage Wilkinson power combiner/divider using additional capacitive and inductive elements in both stages is described.