This study deals with the corrosion inhibition of metal corrosion process of medium carbon steel using 1M HCl for kinetic studies and rate reaction determination. The weight loss method is applied to pieces of Medium carbon steel divided to Cubans with dimensions (0.4*2*2.4) cm , and use Tafel Extrapolation Method, the samples were polished using carbide silicon paper with dimensions of (180,200,400,600,800,1000). The samples were immersed in the alcoholic medium ethanol at a temperature 293K for 3hr. Natural inhibitor Kujarat Tea (Hibiscus sabdarriffa L.) is used which is extracted in aqueous and alcoholic medium, different concentrations (1000،2000, 3000) ppm have been used ; The best concentration found through the results is a concentration found that is 1000 and 2000 ppm, the results indicate that the highest degree of inhibition for aqueous extract is 93.3% with the concentration of 2000 ppm and 90.5% with 1000 ppm at293K. While the alcoholic inhibitor shows the highest efficiency 92.4% with a concentration of 2000 ppm and 88.6% with a concentration of 1000 ppm respectively. The structure of the inhibitor was investigated using infrared spectroscopy (FTIR), and the surface morphology of the tested samples was investigated using a scanning electron microscope (SEM).
Seen in Iraq that the volume of insurance activity in the case of a clear deterioration and a sharp decline in demand for life insurance, because of reluctance by senior members of the Iraqi society on the demand for life insurance. The study was descriptive approach in identifying and addressing variables, namely the (perception of risk need of the individual trends in personal income of the individual insurance awareness of the individual customs and traditions of communal religious belief of the individual age and sex of the individual methods promotional company competitive alternatives to the insurance service life inflation rate service life insurance) indepen
... Show MoreFind extract This research aims to find out (after learning strategy cells in the development of critical thinking and reflective thinking at the fifth-grade students in the geographic literary material). And follow researcher Almhnj demo for the purpose of achieving the goals of current research and design on an experimental group and a control with a test group after me and adopted chose researcher sample Find a way Mqsidih students of junior high Kadhimiya Boys of the breeding Baghdad / Karkh II and to verify the effectiveness of the search coined researcher hypotheses following cases: - 1. No statistically significant between the mean scores of the experimental group and the students taught her students that strategy differences (lea
... Show MoreThe current research aims to study (the effect of strategy of analysis - synthesis duality in the collection of scientific fourth stage students and high-order thinking in Biology material). For evidence the objective of the research, the researcher formulated the following two null hypotheses: 1. There is no significant difference at the statistical level (0.05) between the average of scores of the experimental group students that will study according to the dualism strategy of analysis and structure and the average of scores of the controlled group students that will study according to the normal way in the collection. 2. There is no significant difference at the statistical level (0.05) between the average of scores of the experimenta
... Show MoreThe audit committees are considered to be one of the most important committees because of the role they play in supervising and monitoring the process of formation of the financial statements and correction of the internal supervising system also strengthening the independency of the internal and external audit. Matters which increases the efficiency and integrity of the financial statements which reflects positively on competence of board of directors and then enhance the position of the company through increasing the trust of the users of the financial statement within the company.
Therefore, this research deals with the evaluation of the performance of the audit committees in Iraqi banks according to the local rules and
... Show Moreالمستخلص تهدؾ الدراسة الى ل اٌس مدى التطب كٌ والتبن للم اٌدة ال مٌظة ف المنظمات العامة ولد اشتمت مشكلة الدراسة النظر ةٌ من وجود فجوه معرف ةٌ وذلن لملة الدراسات والبحوث الت تناولت متؽ رٌ الدراسة بأبعاده )الرؤ ةٌ المح طٌ ةٌ, التمك نٌ, الشبكات ب نٌ اعضاء الفر قٌ, الترك زٌ, الم لٌ للتعامل مع حالات عدم التأكد( اعتمدت الدراسة منهج دراسة الحالة عن طر كٌ استعمال استمارة الفحص ف المنظمة الت تم اخت اٌرها دائرة العمل والتدر ب
... Show Moreيتناول البحث الاخلال المسبق واثره في تنفيذ الالتزام العقدي على حساب المدين ـ دراسة مقارنة في القوانين المدنية والقانون الانكليزي
يتناول هذا البحث موضوع مهم في تاريخ العراق في العهد الملكي يتمثل في الانقلاب العسكري الذي قام به عدد من قادة الجيش العراقي بقيادة الفريق بكر صدقي رئيس أركان الجيش العراقي سنة 1936م وتم تشكيل حكومة من الانقلابيين استمرت حوالي تسعة أشهر وكتب عنها الكثير بعض هذه الكتابات كانت مع الانقلاب وبعضها كانت ضده وجاء هذا البحث ليسلط الضوء على ألصوره الذهنية التي حاولت ان ترسمها الصحف العراقية في حينها وتم دراسة الموضوعات
... Show Moreيهدف هذا البحث إلى معرفة أثر استخدام دورة التعلم في اكتساب المفاهيم الصرفية واستخلاصها لدى طالبات قسم اللغة العربية بكلية التربية للبنات وقد صيغت فرضيتان مفادهما أن ؛ 1- لا توجد فروق ذات دلالة إحصائية بين متوسط درجات طالبات المجموعة التجريبية اللاتي يدرسن المادة الصرفية في دورة التعلم ومتوسط درجات طالبات المجموعة الضابطة اللاتي يدرسن المادة الصرفية بالطريقة القياسية لاكتساب المفاهيم. 2- لا توجد فروق ذ
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This research was conducted to test the hypothesis (There is no significant moderating effect for Dramaturgy on the relationship between impression management strategies and PTSD), (45) employees in Iraqi drilling company (Basra province) were selected as a sample. Findings showed that the percentage (0.91%) of the employees who are exposed to accidents as a result of work suffer from post traumatic stress disorder, which negatively affects their organizational behavior, thereby, reducing future performance, findings also showed that the employment of impression management strategies will assist management to address PTSD among employees wh
... Show Moreوللتحقق من هدف البحث صيغت الفرضية الصفرية الاتية:
- لا توجد فروق ذات دلالة احصائية عند مستوى (0.05 ) بين متوسط درجات طالبات المجموعة التجريبية التي درست وفقا لاستراتيجية (تنال القمر ) ومتوسط درجات طالبات المجموعة الضابطة التي درست على وفق الطريقة الاعتيادية في مقياس مهارات ما وراء المعرفة .
ولأجل التحقق من صحة هذه الفرضية اجرت الباحثة تجربة استغرقت الفصل الدراسي
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