khalaf.ali

Khalaf Ali Fayez Abuamra

استاذ - أستاذ متفرغ

كلية العلوم

العنوان: قسم النبات والميكروبيولوجى -كلية العلوم -جامعة سوهاج

2

إعجاب

المنشورات و المؤلفات التي تحتوي علي الكلمة المفتاحية: EDX


2018-10-03 08:55:52 الكلمات المفتاحية Cationic surfactants, Corrosion inhibition, Carbon steel, Cyclohexene, EIS, SEM, EDX,
Novel Quaternary Ammonium-Based Cationic Surfactants: Synthesis, Surface Activity and Evaluation as Corrosion Inhibitors for C1018 Carbon Steel in Acidic Chloride Solution
A novel class of quaternary ammonium-based cationic surfactants is synthesized and characterized via spectroscopic methods (FTIR, 1 HNMR and13 C NMR). The surface properties, foaming power and biodegrad-ability of the synthesized cationic surfactants are deter-mined using the surface tension technique. The protection performance with their adsorption mecha-nisms for carbon steel is evaluated in a 15% HCl solu-tion by a series ... إقراء المزيد

2018-09-16 10:20:59 الكلمات المفتاحية Brick, External casing, Deterioration problems, EDX, XRD, SEM,
20.	 Characterization of brick used in the external casing of Roman bath walls "Gedara-Jordan" x
The use of sub-soil materials have been used in buildings long time ago, for more than 10,000 years. This study investigates the different characteristics of brick units used in one of the Roman baths in Gadara archaeological site. This is achieved by studying the raw materials and the different technological measurements of brick units: shapes, dimensions and visual description. Moreover, ... إقراء المزيد

2018-09-16 10:01:56 الكلمات المفتاحية XRD, EDX, Red spots, weathering, deterioration, Granite,
15.	Analytical investigations of disintegrated granite surface from the Un-finished obelisk in Aswan  Int. J. of ArchaeoScience, Vol. 35
The deterioration of natural stone monuments is subjected to different external reasons that take place through different weathering factors, in addition to other several factors concerning the stone itself “internal reasons” mainly pore structure and permeability index. All of these factors lead to the formation of altered surface layers, then damaging the original stone components. Here, red weathering, one of ... إقراء المزيد