Zobrazeno 1 - 10
of 24
pro vyhledávání: '"A M Motawie"'
Autor:
Abeer M. E. Osman, Ayat A. M. Motawie, Amany M. Abd Al-Aziz, Nadia A. A. Mostafa, Nehal S. Hasan, Mohamed S. El-Baz
Publikováno v:
BMC Pediatrics, Vol 23, Iss 1, Pp 1-11 (2023)
Abstract Background Asthma is a chronic inflammatory disorder of the airways with diverse overlapping pathologies and phenotypes contributing to a significant heterogeneity in clinical manifestations. Obesity may modify asthma risk, phenotype, and pr
Externí odkaz:
https://doaj.org/article/9e51f46b8a8642efa624c04863ae3c09
Publikováno v:
Journal of Scientific Research in Science. 36:453-468
Poly (vinyl chloride) (PVC) nanocomposite have been prepared via solution technique. The nanocomposite structure based on the used modifier type and content was characterized with (XRD), (TEM) and (FTIR) spectroscopy. The results indicate the interac
Publikováno v:
Egyptian Journal of Chemistry.
The preparation of both polymer composites and nanocomposites by melt compounding of polypropylene (PP) with micro CaCO3 content 1, 3, 5, 7, 10, 15 and 20 wt.% and nano CaCO3 content 1, 3, 5, 7 and 10 wt.% using carboxylic acid as compatibilizer has
Autor:
N. A. Badawy, A. M. Motawie, A. Y. Abd El All, D. El-Komy, Sahar M. Ahmed, M. Z. Mohamed, E. M. Sadak
Publikováno v:
Russian Journal of Applied Chemistry. 88:970-976
Novolac phenol formaldehyde NPF resin/organobentonite clay nanocomposites were prepared and modified with epoxy and/or urethane resin via solution technique. The prepared samples at organoclay content 2 phr were characterized by transmission electron
Autor:
Dalia E. Abulyazied, A. M. Motawie, H.M. Othman, E.A. Esmail, A.Z. Dacrorry, M. M. Badr, M. Madani
Publikováno v:
Egyptian Journal of Petroleum, Vol 23, Iss 4, Pp 379-387 (2014)
Modification of the Egyptian Bentonite (EB) was carried out using organo-modifier namely; octadecylamine ODA. Before the modification, the cation exchange capacity (CEC) of the EB was measured, also it was purified from different impurities using HCl
Autor:
M.M. Madany, Dalia E. Abulyazied, M. M. Badr, A.Z. El-Dakrory, A. M. Motawie, D.A. El-Komy, H.M. Osman, Eid A. Ismail
Publikováno v:
Egyptian Journal of Petroleum, Vol 23, Iss 3, Pp 331-338 (2014)
Different types of nano-organo bentonite (NOB) were prepared from the Egyptian Bentonite (EB). EB was characterized by energy dispersive X-ray EDX. It was purified from different impurities using a conventional method via the treatment with HCl and d
Autor:
Huda Amer Ibrahiem, Khalid F. Mahmoud, Hesham M. Kamal, Abdallah A. El-Sawy, A. M. Motawie, Hassan H.H. Hefni
Publikováno v:
Egyptian Journal of Petroleum, Vol 23, Iss 2, Pp 221-228 (2014)
Chitosan (CTS) was first prepared by proper treatment of shrimp shells and the cross-linked chitosan (CCTS) was then synthesized by its reaction with epichlorohydrin ( ECH ) under alkaline conditions. Adsorption of uranium from aqueous nitrate soluti
Autor:
E. M Sadek, A. A Khalil, A. M. Motawie, A. I. A Eid, S. L. Abd-El-Messieh, Nesreen A. Fatthallah, K. M El-Ashry
Publikováno v:
IOSR Journal of Applied Chemistry. 7:37-45
The influence of 1.31PS organoclay content relative to PGV grade on the properties of PVC compounds was analyzed. Dielectric properties (i.e. permittivity ' & dielectric loss " ) of the PVC nanocomposites were investigated in the frequency rang