Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Abd El-Shafey I Ahmed"'
Publikováno v:
Journal of Economic and Administrative Sciences, 2015, Vol. 31, Issue 1, pp. 2-19.
Externí odkaz:
http://www.emeraldinsight.com/doi/10.1108/JEAS-02-2014-0005
Autor:
Hany El-Sayed Ahmed, Hamed Y. Moustafa, El-Sayed Anter, M.I. Abdou, A.M. Fadl, Abd El-Shafey I. Ahmed
Publikováno v:
Arabian Journal for Science and Engineering. 46:6989-7017
Currently, polymers were applied as the most functional additives for optimizing the rheological behavior and filtrate volume control of water-based drilling fluids. To affirm this concept, the present work aims to prepare sodium salt of linear polya
Publikováno v:
Waste and Biomass Valorization. 10:1539-1546
The production of agricultural wastes is problematic. Without proper disposal, many aspects of the environment may be affected by these wastes. This study attempted to harness rice straw and sugar cane bagasse wastes for the enhancement of Triticum a
Autor:
Amr L. Saber, Abd El-Shafey I. Ahmed
Publikováno v:
IEEE Sensors Journal. 16:5867-5874
A new and rapid potentiometric method to quantify aluminum ions concentration was developed. The method involves the development of an aluminum ion sensor with a membrane consists of diethyl (2-azobenzoic acid) malonate (DAM) as a novel ionophore in
Publikováno v:
Polymer Composites. 38:E214-E220
Ethylene vinyl acetate (EVA) and poly(styrene-co-butyl acrylate)/organo-silica nanocomposites were prepared by melt blending in a twin screw bara-bender. The structural, morphological, thermal, and mechanical properties of the prepared nanocomposites
Publikováno v:
Propellants, Explosives, Pyrotechnics. 41:286-294
Mechanically-activated nanocomposites (MANCs) of nano-aluminum (nAl)/X (X=Cu, Ni, Zn, Mg, and graphite) were used as replacements for reference nAl powder and as catalytic ingredients in polyurethane (PU) propellants. The effects of their use on comb
Publikováno v:
Journal of Economic and Administrative Sciences. 31:2-19
Purpose– Undoubtedly, saving the environment and avoiding environmental damage is one of the major challenges facing any government. The purpose of this paper is to add to the accumulative knowledge in the field through investigating the different
Publikováno v:
Polymer Composites. 38:61-67
Organo-silica nanoparticles were prepared by sol–gel technique of triethoxyvinylsilane (VTES) in aqueous solution. The vinyl groups located on the surface of organo-silica were used to induce the polymerization process and the encapsulation into st
Autor:
Nabel A. Negm, Sayed El-lboudy, Essam A. Abdel Halim, Abd El-Shafey I. Ahmed, Ahmed F. El-Farargy
Publikováno v:
Journal of Surfactants and Detergents. 17:1203-1211
Four nonionic surfactants were prepared from the reaction of propylene oxide with oleic acid, linoleic acid, and the free fatty acid mixture from hydrolysis of jatropha oil. The chemical structures of the prepared surfactants were confirmed using IR
Publikováno v:
Polymer Composites. 35:2137-2143
N-halamine polymeric material based on cellulose extracted from an agricultural waste (rice straw) was blended with sand/charcoal for disinfection purposes. The presence of N-halamine between sand/charcoal particles in water filters prevents internal