Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Mohamed N. Shaaban"'
Publikováno v:
EURASIP Journal on Wireless Communications and Networking, Vol 2024, Iss 1, Pp 1-17 (2024)
Abstract This paper addresses the issue of constructing millimeter band antennas using dielectric waveguide structures. A new type of linear antenna, incorporating metal pins on the side walls of the grooved dielectric waveguide, is proposed for gene
Externí odkaz:
https://doaj.org/article/624abfbc5c764770b4a9ce09eb171947
Autor:
Hany S. Hussein, Mohamed Hassan Essai Ali, Mohammed Ismeil, Mohamed N. Shaaban, Mona Lotfy Mohamed, Hany A. Atallah
Publikováno v:
IEEE Access, Vol 11, Pp 98695-98705 (2023)
This study proposes robust convolutional neural network (CNN)-based automatic modulation classification (AMC) techniques. Traditional AMCs may be classified into two types: those that rely on ML (maximum likelihood-based AMCs) and those that rely on
Externí odkaz:
https://doaj.org/article/2585819c3a824d7dac0f9ae0a27d73cb
A promising Ka band leaky-wave antenna based on a periodic structure of non-identical irregularities
Autor:
Mohamed N. Shaaban, Mohamed Hassan Essai Ali, M. S. Yasseen, Aydar R. Nasybullin, Yuri E. Sedelnikov
Publikováno v:
EURASIP Journal on Wireless Communications and Networking, Vol 2022, Iss 1, Pp 1-16 (2022)
Abstract This paper presents a new periodic grooved dielectric leaky-wave antenna with non-identical irregularities for an extremely high-frequency range capable of performing efficiently in the Ka band through a stable gain, a decrease in the level
Externí odkaz:
https://doaj.org/article/05ccca613433454ebd32f2eea85c19f7
Publikováno v:
Carbonates and Evaporites. 20:107-115
The Lower Carboniferous Um Bogma Formation in west-central Sinai, Egypt displays extensive and pervasive dolomitization. The combined petrographic/isotopic/stratigraphic investigations of the dolomite succession in the studied area reveal the presenc
Diagenesis of the Middle Eocene Upper Dammam Subformation, Qatar: Petrographic and isotopic evidence
Publikováno v:
Carbonates and Evaporites. 20:72-81
The subsurface Middle Eocene Upper Dammam Subformation in Qatar displays a complex diagenetic history related to sea level variations. The studied rocks are made up of dolomitic limestones and pervasive dolomites. Two main types of dolomite are ident
Publikováno v:
Carbonates and Evaporites. 19:142-150
Extensive precipitation of aragonite and high-Mg calcite (12–14% MgCO3) cements in the intertidal sediments of the Gulf of Aqaba, Egypt and the Arabian Gulf, Qatar results in the formation of dominant beachrock exposures. The 20–60 cm thick beach
Autor:
Mohamed N. Shaaban
Publikováno v:
Facies. 37:137-145
Oxygen and carbon stable isotope profiles of the Dakhla sequence at the Eastern Desert, Egypt, reveal that the negative isotopic excursion commonly observed at the K/T boundary in sections showing continuous deposition around the world (e.g. El Kef s
Publikováno v:
Carbonates and Evaporites. 12:264-275
Middle Miocene reefal carbonates of the Um Mahara Formation at Um Gheig area near the Red Sea coast of Egypt had a complex history of dolomitization. Various dolomite petrotypes are recorded including; 1) dolomite replacing allochems with complete fa
Publikováno v:
Facies. 33:121-128
An Upper Cretaceous bioclastic oyster limestone bed, exposed at the Red Sea coastal strip, has been investigated for its depositional environment and the early diagenetic modifications affecting its components. The deposition of this stratum body mar
Publikováno v:
Neues Jahrbuch für Geologie und Paläontologie - Monatshefte. 1993:434-448