Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Mohamed G. Shahien"'
Publikováno v:
Open Ceramics, Vol 17, Iss , Pp 100545- (2024)
The preparation of affordable glass-ceramic materials by induced crystallization of glass-based mica schists and other natural raw materials (dolomite & limestone), as well as magnesite as a mine waste, was investigated for the first time. Five glass
Externí odkaz:
https://doaj.org/article/0ae98fe1d4aa41249ff97ea81f577c74
Publikováno v:
Ain Shams Engineering Journal, Vol 12, Iss 1, Pp 885-896 (2021)
Weathered basalt (WB) is a useless and costless material with a negative environmental impact. The use of WB to replace clay in Portland clinker manufacturing is a successful strategy to enhance clinker quality, cost and reduce environmental impact.
Externí odkaz:
https://doaj.org/article/0d9853fb6be94b4a8ef249d748e1fddc
Autor:
Mostafa A. Masoud, Ahmed M. El-Khayatt, Mohamed G. Shahien, Bottros R. Bakhit, Ibrahim I. Suliman, Ahmed M. Zayed
Publikováno v:
Toxics, Vol 10, Iss 11, p 697 (2022)
Serpentinites are metamorphic rocks that are widely applied as aggregates in the production of radiation-shielding concrete. Different varieties of massive serpentinite mountains located in Egypt exist without real investment. Hence, this study aims
Externí odkaz:
https://doaj.org/article/ff91f915ff0a4b51bd17972abaf62fa1
Publikováno v:
Beni-Suef University Journal of Basic and Applied Sciences, Vol 4, Iss 3, Pp 207-213 (2015)
The Egyptian magmatic ilmenite is classified as a medium-grade ore. The present work is an attempt to produce a high-quality TiO2 that can be used in several industries from this medium-grade raw material using the mechanical activation, carbothermic
Externí odkaz:
https://doaj.org/article/d31a738e93ed46d999dfc7cf054e4684
Autor:
Mostafa A. Masoud, Ahmed M. El-Khayatt, Mohammad W. Marashdeh, Mohamed G. Shahien, Bottros R. Bakhit, Wael Abdelwahab, Mohamed Abdel Rafea, Ahmed M. Zayed
Publikováno v:
Sustainability; Volume 14; Issue 23; Pages: 16225
Barite and hematite are the most common heavy-weight minerals applied as aggregates in radiation shielding concrete (RSC). Therefore, to limit the cement consumption and reduce the CO2 emissions accompanying its production, the aim of this study is t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::79de4e7d2c15f915ed87aa8d64da84b2
Publikováno v:
The Geology of the Arabian-Nubian Shield ISBN: 9783030729943
Abundant ophiolites are distinctive components of the Arabian-Nubian Shield (ANS), providing important clues about its origin and hosting many of its valuable mineral resources. The ANS ophiolites were thrust onto pre-Pan-African continental shelves,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e21db36d2208655451170adbdb023ea3
https://doi.org/10.1007/978-3-030-72995-0_12
https://doi.org/10.1007/978-3-030-72995-0_12
Autor:
Arman Boskabadi, Basem Zoheir, Mohamed G. Shahien, Ayman E. Maurice, Iain K. Pitcairn, Robert J. Stern, Rabea A.M. Ali, Mokhles K. Azer, Tobias Kluge, Bottros R. Bakhit
Neoproterozoic ophiolites in the Eastern Desert (ED) of Egypt are pervasively carbonated and listvenitized. Two types of carbonation are recognized: 1) intergrown magnesite (and to lesser extent dolomite) with serpentine and talc that in cases form p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8087668356c55c9a3e96dbe48874b62b
https://doi.org/10.5194/egusphere-egu2020-18336
https://doi.org/10.5194/egusphere-egu2020-18336
Autor:
Zeinab M. Ahmed, Mostafa R. Abukhadra, Mohamed I. El Sayed, Mohamed G. Shahien, Mohamed Shaban
Publikováno v:
Journal of Sol-Gel Science and Technology. 87:427-441
Raw kaolinite was used as a precursor for several types of modified kaolinite. The modification processes included modification by sodium hydroxide, sodium phosphate, sodium sulfate, CTAB, and sodium acetate. The structural, morphological, and chemic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::677a09e8af5c0545b3670b7b05744c87
https://doi.org/10.1007/s10971-018-4719-6
https://doi.org/10.1007/s10971-018-4719-6
Publikováno v:
Silicon. 11:615-625
This paper aims to evaluate and upgrade the quality of quartz mining by-products through acid leaching process. The quartz samples were collected as gold mine by-products from El Sid- Fawakhir gold mine, Qift-Quseir, Eastern Desert, Egypt and charact
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bcbc6680a0033ceae2ebdb39af2565cd
https://doi.org/10.1007/s12633-018-9865-5
https://doi.org/10.1007/s12633-018-9865-5
Publikováno v:
Journal of Inorganic and Organometallic Polymers and Materials. 28:279-294
Mesoporous graphitic carbon (PG) was successfully synthesized from alkaline treated rice husk ash through chemical activation by phosphoric acid at 800 °C for 1 h and modified by nitric acid to produce porous graphite with nitrogen functional group
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::96fbad7210def5d10cfd91750eebb3d6
https://doi.org/10.1007/s10904-017-0726-2
https://doi.org/10.1007/s10904-017-0726-2