In this study we focused on the determination of influence the novel synthesized thiosemicarbazide derivative "2-(2-hydroxy-3-methoxybenzylidene) hydrazinecarbothioamide" (HMHC) influenced the corrosion inhibition of mild steel (MS) in a 1.0 M hydrochloric acid acidic solution.This is in an effort to preserve the metal material by maintaining it from corrosion.The synthesized inhibitor was characterized using elemental analysis, and NMR-spectroscopy. Then the corrosion inhibition capability of (HMHC) was studied on mild steel in an acidic medium by weight loss technique within variables [temperature, inhibitor concentration, and time]. The immersion periods were [1:00, 3:00, 5:00, 10:00, 24:00, and 72:00] hours and the temperature range was (303-333) K. Various concentration of (HMHC) were used and the immersion periods were [0.00, 0.001, 0.05, 0.10, 0.15, 0.20, 0.25, and 0.50] g/L. The prepared derivative has shown the ability to inhibit corrosion. It has been observed that the rate of erosion decreases with the increasing concentration of the prepared inhibitor and increases with the increasing temperature of the solution. The most promising inhibitor action is at 0.5 g/L with an inhibition efficiency of 90.2%. Where it found that the adsorption process of HMHC obeys the Langmuir isotherm model. The electronic properties of the HMHC molecules were obtained from density function theory (DFT) quantum chemical approach. The experimental approach and theoretical results were found to have impressive correlations.
يمكن القول ، أن أزمة الاستبعاد والخلاف بشان ولاية العهد شهدت ولادة النظام الحزبي الحديث في إنكلترا، واظهرت حالة جديدة للتنظيم والدعاية الحزبية وادخال طرق جديدة للتأثير في الرأي العام في اثناء الانتخابات، واختلفت تلك الاحزاب في ايديولوجياتها فحزب الويك كانت له ارتباطات دينية بين اعضائه مع البيورتان أذ تشاركوا في مفاهيم حرية التعبير عن الرأي ومقاومة هيمنة رجال الكنيسة المتنفذين، في حين كان حزب التور
... Show MoreThe research deals with one of the rights of women, which Islam granted them, and the pledge of allegiance to women, despite its simple part, represents an important and basic feature of the uniqueness that distinguishes the Islamic religion from all the heavenly religions
The institutions of higher education and scientific research are the strategic institutions in the field of investing the human resources.
Expenditure on such institutions is considered a long – term investment. Thus, the financial balancing in such institutions is not a traditional one.
These institutions are not for profit organizations.
Accordingly, they need to have accounting data that are calculated on an agreed upon cost basis due to the continuous growth in the expenditure on the services rendered by these institutions. These calls for the availability of tools that help rationalize the expenditure.
Cost Accounting system is capable of providing the useful data for such purposes an
... Show Moreركزت الدراسة على بيان مؤشرات التنمية الحديثة في جمهورية تنزانيا المتحدة مع بيان التحديات الداخلية والخارجية التي تواجهها والتي تعرقل استدامة هذه المؤشرات وتطورها بالشكل الذي يسمح لهذا البلد المحافظة على استقراره ،ومن ثم استمرار برامجه التنموية الشاملة المستدامة، وهذا الامر لا شك يتطلب مواجهة مستمرة وفاعلة للمعرقلات الاقتصادية والسياسية ومنظومة الفساد في اجهزة الدولة . وتوصلت الدراسة في مجمل نتائجها بان
... Show MoreThis research submitted to be a clear form for a city has famous civilization extended many centuries , made its obvious stamps & prominent for eyesight through what left us of edifices stated witnesses of Islamic cities , that are distinguished from others by its model , engineering of buildings that are taken special characteristics display thought creativity features & Islamic Arabian art , and this research clarifies from thought & design of Al-Hajjaj in building Wasit City that appeared as a result from the political conditions that Iraq faced them in general , and Al-Hajjaj in particular , the increasing of revolutions from different governorates
أهمية البحث والحاجة إليه :
يعد تفعيل بناء المؤسسات التربوية ورفع مستواها من المهمات الأساسية التي ينبغي تحقيقها من خلال تحسين دورها في التعبير عن الأرادة المجتمعية المرتبطة والمتناغمة مع مقومات البيئة المادية والبشرية وعلى وفق متغيري الزمان والمكان، وان مسؤولية الأدارة التربوية تتمحور في أعادة النظر في هياكلها الوظيفية الادارية واستثمار الطاقات البشرية العاملة وتنظيمها ووضعها
... Show MoreThe two terms"of fective intelligece and organizational intelligence" is it is the emotional intelligency and organizational intelligency"are considered as one of the contemporany terms which the various organizations started to function them in their activities to in crease their efficiency.
This study aims at examining those two terms and the possibility of their functioning them in one of the general organizations and the questionnaire is used as atool to gather information that are distributed on asample consists of (50)employees and selected randomly from various organizationl levels.
The most important conclusions:<
... Show MoreThe importance of the jurist concentrated on Abu-Abdullah Mohammad Bin Ismael Al- Bukhary who wrote his famous writing (the great history) according to his Modern approach. His style was clearly aimed to record historical events helped narrators reported novel especially through deep reading to be as a sign of special different style from curriculum historians and their ways. It was an approach like an affect charm to the reader and transmitted to a state of grandeur and pride
Corporate governance has the great concern from the international and regional, institutions and organizations especially after the current financial crisis. It became a fertile field for research and study.
So an urgent need was to do research links the relationship between taxes and corporate governance to take advantage of Its multiple positives because corporate governance helps in the elimination of the conflict, to achieve harmony and balance between the interests of different groups interested in the company whether from within or from outside, financial authority is one of the these categories.
The aim of this research is to achieve a set of objectives including:
- make use of the
لقد إزدادت التطورات العلمية والتكنولوجية ولاسيما المعلوماتية زيادة في العلوم والحقائق والنظريات والإكتشافات بصورة مذهلة، وكذلك زيادة فروع في العلم والمعرفة ففي كل يوم نشهد قيام فروع أو تخصص معرفي جديد، إضافة إلى تفجر المعرفة التي ساهمت في بناء قنوات الفروع والتخصصات العلمية القديمة والجديدة (عبد الغفور 2001 ص8).
فالثورة في مجال العلم والمعرفة والمعلومات والإتصا
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