Zobrazeno 1 - 10
of 53
pro vyhledávání: '"A. F. Tawfic"'
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-16 (2023)
Abstract The current study assessed two concrete mixes prepared using dolomite and barite/limonite aggregates to shield against both energetic photons and neutrons. After that, a designed mix which comprised barite/goethite aggregates plus fine-powde
Externí odkaz:
https://doaj.org/article/a025cb03c4a44f269f124760cb892226
Publikováno v:
Fibers, Vol 11, Iss 5, p 42 (2023)
Concrete is an essential artificial building material in modern society. However, because concrete structures have brittle characteristics, they have a limited service life when subjected to dynamic loads. Nuclear emissions and explosions threaten hu
Externí odkaz:
https://doaj.org/article/b282f362f5ec4ff5afd1a070b2276c66
Publikováno v:
Journal of Environmental Science. 50:325-338
Congo red is an organic dye used as a representative for organic contaminant of water; the prepared magnetic Nano particles is used in the removal of Congo red under many parameters including pH and the NixZnxFe2O4 concentrations. The results show th
Publikováno v:
Radiochemistry. 63:243-250
Wadi El Reddah has radiation exposure due to the presence of different types of complexed rocks along with a huge sector of Hammamat sedimentary rocks, monzongranites of Gabal El Reddah, perthitic leucogranites of Gabal Gattar, as well as swarms of p
Publikováno v:
Physics of Particles and Nuclei Letters. 18:222-231
This work investigates in some details the conditions and parameters affecting and controlling the performance of three different types of HpGe spectrometers. The quality and accuracy of any results depend on the optimum working parameters. The major
Publikováno v:
International Journal of Environmental Analytical Chemistry. 102:5339-5355
Wadi El Reddah (valley), Central Eastern Desert, Egypt extends in North-South direction, it represents a semi-closed basin with only one outlet in its northern tip. Wadi El Reddah is mainly surroun...
Publikováno v:
International Journal of Environmental Analytical Chemistry. 102:575-588
This study aims to evaluate the specific activity levels in soil and shore-sediment samples due to natural radionuclides; 238U, 232Th and 40K, and man-made 137Cs of Al–Nigella site, Marsa Matrouh g...
Publikováno v:
International Journal of Environmental Analytical Chemistry. 101:2379-2391
Gabal Abu Garadi area is covered by metasediments, alkali feldspar granites and stream sediments. Geochemically, silicification, desilicification, sericitisation, fluoritisation and Na-metasomatism...
Publikováno v:
International Journal of Environmental Analytical Chemistry. 101:1750-1760
Abu Garadi area is mainly represented by metasediments, alkali feldspar granites and stream sediments. The granitic mass described different degrees of hydrothermal alterations like albitization, g...
Autor:
El-Afandy A. H, Mohamed G. El-Feky, Samia H. Taha, S. M. El Minyawi, H. A. Sallam, A. F. Tawfic, A. Omar, M. G. El-Samrah
Publikováno v:
Journal of Physics: Conference Series. 2305:012033
Granites from the Southeastern Desert of Egypt were investigated by using in situ γ-ray spectrometer. Consequently, estimating the radiological effects from these rocks were achieved through calculation of some radiological parameters; Annual effect