Zobrazeno 1 - 10 of 32 pro vyhledávání: '"Yehia H. Dawood"'
1
Akademický článek
The Geochemistry, Petrogenesis, and Rare-Metal Mineralization of the Peralkaline Granites and Related Pegmatites in the Arabian Shield: A Case Study of the Jabal Sayid and Dayheen Ring Complexes, Central Saudi Arabia
Autor: Hamdy H. Abd El-Naby, Yehia H. Dawood
Publikováno v: Applied Sciences, Vol 14, Iss 7, p 2814 (2024)
The Neoproterozoic period in the Jabal Sayid and Dayheen areas is characterized by three distinct magmatic phases: an early magmatic phase of granodiorite–diorite association, a transitional magmatic phase of monzogranites, and a highly evolved mag
Externí odkaz: https://doaj.org/article/7e517b27648547bc8326d56ca298a39e
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2
Akademický článek
Geochemical Constraints on the Evolution of Late- to Post-Orogenic Granites in the Arabian Shield, with a Specific Focus on Jabal Al Bayda Area in the Central Hijaz Region, Saudi Arabia
Autor: Hamdy H. Abd El-Naby, Yehia H. Dawood
Publikováno v: Applied Sciences, Vol 14, Iss 2, p 735 (2024)
The Jabal Al Bayda, located in the Hijaz terrain of northwest Saudi Arabia, comprises magmatic rocks that represent the ending phase in the Precambrian development of the Arabian Shield. Two granitic suites have been studied petrologically and geoche
Externí odkaz: https://doaj.org/article/0af262bd2ecb49bb9bcb21c15a326dfc
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3
Akademický článek
Spatial Distribution, Contamination Levels, and Health Risk Assessment of Potentially Toxic Elements in Household Dust in Cairo City, Egypt
Autor: Ahmed Gad, Ahmed Saleh, Hassan I. Farhat, Yehia H. Dawood, Sahar M. Abd El Bakey
Publikováno v: Toxics, Vol 10, Iss 8, p 466 (2022)
Urban areas’ pollution, which is owing to rapid urbanization and industrialization, is one of the most critical issues in densely populated cities such as Cairo. The concentrations and the spatial distribution of fourteen potentially toxic elements
Externí odkaz: https://doaj.org/article/d0629189084944358ae99d062fd75102
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4
Akademický článek
Assessment of Potentially Toxic Elements’ Contamination in the Soil of Greater Cairo, Egypt Using Geochemical and Magnetic Attributes
Autor: Ahmed Saleh, Yehia H. Dawood, Ahmed Gad
Publikováno v: Land, Vol 11, Iss 3, p 319 (2022)
Enhanced soil’s magnetic susceptibility reflects particles of anthropogenic/natural origin; therefore, it can be utilized as an indication of soil contamination. A total of 51 different land-use soil samples collected from Greater Cairo, Egypt, wer
Externí odkaz: https://doaj.org/article/9b7d23bdcf064192830aa89f445da41a
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5
Akademický článek
Distributions and Risk Assessment of the Natural Radionuclides in the Soil of Shoubra El Kheima, South Nile Delta, Egypt
Autor: Randa Osman, Yehia H. Dawood, Ahmed Melegy, Mohamed S. El-Bady, Ahmed Saleh, Ahmed Gad
Publikováno v: Atmosphere, Vol 13, Iss 1, p 98 (2022)
Due to heightening concern about radiation hazards protection, activity concentrations of 226Ra, 232Th, 40K in forty soil samples collected from Shoubra El Kheima in the South Nile Delta were measured using gamma-ray spectrometry. The mean activity c
Externí odkaz: https://doaj.org/article/8f9e90154b974f5a9683e8b69b011690
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6
Geochemistry of the trace and rare earth elements mineralisations in the lower member of Um Bogma Formation in the area east of Wadi Baba, southwestern Sinai, Egypt
Autor: Yehia H. Dawood, Ibrahim E. El Aassy, Mohamed M. Abu-zeid, Ehab K. Abu Zeid, Gehan M. Aly, Amany R. Ahmed, Ashraf R. Baghdady, Zeinab M. Shalaby
Publikováno v: International Journal of Environmental Analytical Chemistry. :1-31
The exposures of the lower member of Um Bogma Formation (Early Carboniferous) in a vast area east of Wadi Baba were studied in six localities. The member is dominated by argillaceous rocks in the w...
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::29e20c069337353526f2fc727d564d93
https://doi.org/10.1080/03067319.2021.1984442
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8
Distribution of some potentially toxic heavy metals in the soil of Shoubra El Kheima, Egypt
Autor: Randa Osman, Yehia H. Dawood, Ahmed Gad, Ahmed AbdelAziz Melegy
Publikováno v: Egyptian Journal of Chemistry.
This study aims to detect the effect of industrialization and urbanization on the soil content of some potentially toxic heavy metals. The soil of Shoubra El Kheima was considered one of the most fertile soils in the Nile Delta, Egypt. Forty samples
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7c847249b97a55df2ccf242e8c32b9cd
https://doi.org/10.21608/ejchem.2021.55038.3149
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10
Adequacy of carbonate aggregates as an alternative for chert aggregates in concrete manufacture
Autor: Yehia H. Dawood, Ali M.A. Abd-Allah, Ashraf R. Baghdady
Publikováno v: Construction and Building Materials. 181:94-105
Carbonate and chert aggregates are extensively used in concrete manufacture. The present study assesses the effectiveness of both aggregates in different concrete mixtures. The diagenetic processes control the dissolution of carbonate aggregates and
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c015127708269a9c26b7bcf22fa36333
https://doi.org/10.1016/j.conbuildmat.2018.06.019
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