Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Mohamed G. El-Feky"'
Autor:
El-Afandy H. Adel, Samia H. Taha, Osama A. Ebyan, Wafaa M. Rashed, Mohamed G. El-Feky, Mohammed S. Alqahtani, Korany A. Korany, Mohamed Y. Hanfi
Publikováno v:
Toxics, Vol 10, Iss 10, p 596 (2022)
Sixty-seven sites of Hafafit pegmatite from the Southeastern Desert of Egypt were investigated radiometrically in the field using an in situ γ-ray spectrometer to determine eU, eTh, and K contents. The obtained results ranged from 0.4 to 6 ppm for e
Externí odkaz:
https://doaj.org/article/dc1ad11beb67468cb6c45d396f7f6e5b
Autor:
Neveen S. Abed, Mohamed G. El Feky, Atef El-Taher, Ehab El Sayed Massoud, Mahmoud R. Khattab, Mohammed S. Alqahtani, El Sayed Yousef, Mohamed Y. Hanfi
Publikováno v:
Minerals; Volume 12; Issue 10; Pages: 1245
Egypt is mainly covered by ophiolitic rocks, muscovite, and two mica granites, in addition to different types of acidic and basic dikes. Our field observations indicated that El Sela granites were subjected to alteration types such as silicification,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::49b88e5db5183e24e0bf29113da0ed42
Autor:
Ahmed Mohammed El-Shabasy, Mohamed G. El-Feky, Sayed M. Omar, Ahmed M. El Mezayen, Sherif A. Taalab, Eman M. Ibrahim
Publikováno v:
International Journal of Environmental Analytical Chemistry. 102:970-986
Nine samples were chemically characterized and radiometrically analyzed for determination of 234U, 238U, 235U, 230Th, 232Th, 226Ra and 40K by γ-ray spectrometer Hyper Purity Germanium (HPGe detecto...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b354b0824ff1ba03179e54aa59e4ea96
https://doi.org/10.1080/03067319.2020.1729758
https://doi.org/10.1080/03067319.2020.1729758
Autor:
El-Afandy H. Adel, Mohamed G. El-Feky, Samia H. Taha, Salwa M. El Minyawi, Hanaa A. Sallam, Osama A. Ebyan, El-Sayed Yousef, Mohamed Y. Hanfi
Publikováno v:
Minerals; Volume 12; Issue 3; Pages: 294
The occurrence of heavy radioactive minerals in construction supplies such as granite has drawn attention to the extraction of heavy radioactive minerals. Granitic rocks were identified to serve an essential economic role in the study area’s surrou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ba8765c654efd4cce0283bc81ecfdf73
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::497653d484bc90791f5fc8c34d7e3ce5
https://doi.org/10.1088/1742-6596/2305/1/012033
https://doi.org/10.1088/1742-6596/2305/1/012033
Publikováno v:
Nuclear Sciences Scientific Journal. 7:87-100
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2281f16a73c7b606ebe6552b38d71156
https://doi.org/10.21608/nssj.2018.30732
https://doi.org/10.21608/nssj.2018.30732
Autor:
Mona S. Talaat, Maisa M. Amin, Nilly A. Kawady, Ibrahim E. Elaassy, Mohamed G. El-Feky, Abdelsattar M. Sallam
Publikováno v:
Separation Science and Technology. 53:2232-2237
Bioleaching, in the scope of biotechnology, is one of the promising technologies, which can be utilized for extracting valuable radioactive metal (uranium) from other radioactive ones. Also, it con...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::76347c915dac1fff0e6b2576520e82d3
https://doi.org/10.1080/01496395.2018.1437182
https://doi.org/10.1080/01496395.2018.1437182
Autor:
Jukka Lehto, Ibrahim E. El Assay, Hanna Tuovinen, Mahmoud R Khattab, Mohamed G. El Feky, Mohamed A. Abd.El-Rahman
Publikováno v:
Instrumentation Science & Technology. 45:338-348
Three methods were employed for the determination of uranium in granitic ore rock samples. Gamma spectrometry is a non-destructive technique while alpha spectrometry and inductively coupled plasma–mass spectrometry (ICP-MS) are destructive methods
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5849d0dbf63181aec29dd2d596fc871e
https://doi.org/10.1080/10739149.2016.1242078
https://doi.org/10.1080/10739149.2016.1242078
Autor:
Nagdia M. Ibrahim, Ibrahim E. Elaassy, Farag A. Issa, Mahmoud R. Khattab, Osman A. Desouky, Mohamed G. El-Feky
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 303:357-362
The present work is an attempt to study the uranium concentration and deviation in activity ratio 234U/238U from secular equilibrium conditions for determination the geochemical variation due to water–rock interaction. The studied wells are located
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ce0a3ca512068417e461dd73bfe913db
https://doi.org/10.1007/s10967-014-3461-y
https://doi.org/10.1007/s10967-014-3461-y
Autor:
Mohamed G. El-Feky, Abdelsattar M. Sallam, Maisa M. Amin, Nilly A. Kawady, Ibrahim E. Elaassy, Mona S. Talaat
Publikováno v:
Journal of Environmental Radioactivity. 134:76-82
Bioleaching, like Biotechnology uses microorganisms to extract metals from their ore materials, whereas microbial activity has an appreciable effect on the dissolution of toxic metals and radionuclides. Bioleaching of uranium was carried out with iso
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::33e7f3b1040cf0b21827e3354594f85b
https://doi.org/10.1016/j.jenvrad.2014.02.024
https://doi.org/10.1016/j.jenvrad.2014.02.024