A theoretical and protection study was conducted of the corrosion behavior of carbon steel surface with different concentrations of the derivative (Quinolin-2-one), namely 7-Ethyl-4-methyl-1-[(4-nitro-benzylidene)-amino]-1H-quinolin-2-one (EMNQ2O). Theoretically, Density Functional Theory (DFT) of B3LYP/ 6-311++G/ 2d, 2p level was carried out to calculate the geometrical structure, physical properties and chemical inhibition chemical parameters, with the local reactivity in order to predict both the reactive centers and to know the possible sites of nucleophilic and electrophilic attacks, in vacuum and two solvents (DMSO and H2O), all at the equilibrium geometry. Experimentally, the inhibition efficiencies (%IE) in (3.5% NaCl) and (0.5M HCl) solutions were studied using potentiometric polarization measurements. The results revealed that the (%IE) in the salty solution (94.98%) is greater than that in the acidic solution (81.40%). The thermodynamic parameters obtained, supported the physical adsorption mechanism and the adsorption followed the Langmuir adsorption isotherm. The surface changes of the carbon steel were studied using SEM (Scanning Electron Microscopy) and AFM (Atomic Force Microscopy) techniques.
The Heritage geographical Arab-Muslim of great value in the history of the evolution of thought geographical The themes of cities, like other subjects heritage books geographical Islamic related to geography descriptive and regional were subject to the style of Arabic writing,
تبلور مفهوم مركزية الانسان بالنسبة للإنسان والاعلاء من شأنه و عده قيمه أعلى من الوجود ، هذا الادراك الوجودي هو ما يسمى بالنزعة الانسانية، وتعد النزعة الانسانية هنا احد أهم التيارات التي ظهرت في الفكر السياسي الغربي الحديث، إذ تعد هذه النزعة من أهم الحركات الفكرية والتربوية التي توجت عصر النهضة الاوربي وفجرت ينابيعه الفكرية والاوربية، وعلى الرغم من إن النزعة الانسانية شكلت في عصرها ثورة فكرية شاملة على المن
... Show Moreدراسة التفكير الاستراتيجي وأبعاده وأثره في تمكين الموارد البشرية
The presence of the other representations in the story of modern Arabic
The other who seek to discuss his presence is the other west, and is nothing new to bring the other whatever, especially the Western literature, especially after the opening of the East West and the occurrence of encounters many Whatever the reasons for them or their causes, and the prevalence of the phenomenon influenced by this Western, and therefore his presence in this literature of any had sex. And certainly our presence (we) also in the literature of the other, and this is very natural, created by the convergence of intellectual, cultural and human, which led to the emergence of the cultural theme of conflict between East and West, and these conflicts take d
This study examines the remaining architectural features in Kirkuk Castle,which does not include the heritage buildings outside it. The castle's fortifications are limited about military samples of the city during the Ottoman era ,concentrating on the importance remains of the walls that held on the edge of the hill leads to the interior, As well as some religious buildings such as mosques, shrines and churches, and the service buildings with most important caesarean dating back to the Seljuk era and a range of housing The importance of the subject lies in the study of these buildings , documentation, and knowledge of the designs and models of building to make it a link in the series of the late Islamic architecture
سياسة التعليم لتعزيز الهوية الوطنية في العراق
ادى انتشار الاسلام وانتعاش الاوضاع الى تطور السياحة البحرية
The dhimmis scholars of the Jews, Christians, Sabians and Magi excelled in various pure scientific and human sciences because they are the owners of civilizational inheritances
البيروني مؤلف عربي، أصله فارسي ، رحل للهند ودرس لغتها وثقافتها وديانتها، نبغ في كثير من العلوم فأضحى مؤرخاً ولغوياً وأدبياً وعالماً بالرياضيات والطبيعيات والفلك والطب والفلسفة والتصوف والأديان ، ولهُ بتلك العلوم مصنفات قيمة تمتاز بالبحث الدقيق والإحاطة الشاملة ، وسائل في المعادن والتنجيم، كما له مراسلات وموازنات قيمة بين المذاهب الفلسفية والصوفية عند الهند والمسيحيين والمسلمين
Abstract
The twentieth century French novel had undergo a significant change that took the form of a radical move from the traditional son who follows his father to one who no way prevalent in the classical French novel. The new son in the 2Oth century novel finds himself emotionally attached which both became a new trend and approach in novel writing.
Marcel Proust's novel which can be considered a source of inspiration for most of 2Oth century novelists is a good example of the mother supremacy which is crystal clear from the first page through its parts and chapters till the last page. In fact, Proust had written a completely different novel from the Balzacian conventions. Unlike the latter's novels, Pro
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