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bsj-3416
Role of Carbon Dioxide on the Corrosion of Carbon Steel Reinforcing Bar in Simulating Concrete Electrolyte
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The main factors that make it possible to get the corrosion of reinforcing steel in concrete are chloride ions and the absorption of carbon dioxide from the environment, and each of them works with a mechanism which destroys the stable immunity of rebar in the concrete. In this work the effect of carbon dioxide content in the artificial concrete solution on the corrosion behavior of carbon steel reinforcing bar (CSRB) was studied, potentiostatically using CO2 stream gas at 6 level of concentrations;  0.03 to 2.0  weight percent, and the effect of rising electrolyte temperature was also followed  in the range 20 to 50 C. Tafel plots and cyclic polarization procedures were obeyed to investigate the corrosion parameters and pitting susceptibility respectively. The change in the microstructure and morphology of the CSRB after polarization in the simulate concrete solution was studied using optical and atomic force microscopes. The results show that the corrosion rate of the CSRB in artificial concrete greatly increases with the existence of CO2 gas and highly depends on its concentration in the range 0.03 to 2.0% .No sign for pitting corrosion is recorded at all CO2 concentrations and the general corrosion is the main problem in the conditions under consideration.  

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Publication Date
Sat Sep 01 2007
Journal Name
Journal Of Economics And Administrative Sciences
دور ادارة المعرفة في تحقيق الفاعلية التنظيمية
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تواجه المنظمات فــي القرن الحالي تحديات جديدة تختلف عــن تلك التــي كانت تواجهها خلال العقود المنصرمة، مما يستدعي الحاجة للتجديد التنظيمي واكتساب ميزة استراتيجية والاحتفاظ بمعرفـة عالية، لقد غدا الكثير من المفكرين والباحثين والمستشارين والمديرين يعتبرون المعرفـة المورد الاساس للميزة التنافسية بدلا" من رأس المال واصبحت الموجودات المادية ذات قيمة محدودة ما لم يعرف الافراد ماذا يفعلون بها، وهكذا فأن

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Publication Date
Fri Jun 01 2007
Journal Name
Journal Of Economics And Administrative Sciences
دور مكننة المعلومات المحاسبي في اتخاذ القرارات
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دور مكننة المعلومات المحاسبي في اتخاذ القرارات

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Publication Date
Sat Mar 18 2023
Journal Name
المجلة العلمية للتكنولوجيا وعلوم الاعاقة
دور التلفزيون في تربية وتعليم النشىء وتثقيفه
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جاءت هذه الورقة البحثية لتبين اهمية التلفزيون في حياة النشىء من حيث بناء شخصيته واكسابه مايلزم من المهارات التي تعدهم الاعداد الافضل للحياة في حاضرها ومستقبلها ولتظهر دوره كوسيلة تعليمية معينة يمكن الاستفادة منها في العملية التربويةفي البيت والروضة والمدرسة ولتواكب مراحل حياة الاطفال وخصائص النمو العقلي والجسمي والانفعالي في كل مرحلة

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Publication Date
Wed May 21 2025
Journal Name
القبة البيضاء
دور المراكز البحثية في دعم القضايا الأجتماعية
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تناول هذا البحث الدور الحيوي الذي تؤديه المراكز البحثية في دعم القضايا الاجتماعية، مع التركيز على مركز دراسات المرأة في جامعة بغداد كنموذج تطبيقي. يوضح الباحث أن هذه المراكز لا تقتصر على إنتاج المعرفة النظرية، بل تسهم بشكل مباشر في معالجة التحديات المجتمعية، من خلال تقديم رؤى تحليلية ومقترحات عملية لصناع القرار. كما ويسلط الضوء على مساهمة مركز دراسات المرأة في تعزيز المشاركة السياسية للمرأة العراقية، خاصة

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Publication Date
Sun Apr 01 2007
Journal Name
Journal Of Educational And Psychological Researches
( دور التخطيط في تنمية وتطوير المؤسسات التعليمية)
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الأهمية :

التخطيط بالمعنى العام مارسته بعض الجماعات ، وكثير من الأفراد عبر العصور فهم حاولوا أو يحاولون التحكم في مستقبل حياتهم أو حياة أبنائهم ، وقد حدثنا التأريخ عن بعض التجارب لمواجهة الأزمات والكوارث التي هددت بعض الشعوب ، ولعل قضية سيدنا يوسف عليه السلام وهي تشير الى خطته لمواجهة المجاعة المنتظرة ، ومقوماتها حسن التخزين وضبط الأستهلاك وفترتها الزمنية ، فضلاً عن أمثلة تاريخية لموا

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Publication Date
Tue Nov 30 2021
Journal Name
Iraqi Journal Of Science
Measurement of Pollution Level with Particulate Matter in Babylon Concrete Plant and Evaluation of Oxidative Stress and Hematological Profile of Plant Workers
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The impact of exposure to different sizes of particulate matter (PM1, PM2.5, PM7, and PM10) was evaluated in  Babylon concrete plant workers who had been exposed to concrete dust for at least 10 years.  The effects of  these particles on the hematological parameters, malondialdehyde (MDA) levels, and  antioxidant enzymes (catalase and glutathione peroxidase ) were examined. The results exhibited that the levels of PM2.5 and PM10 were higher than the acceptable limits approved by the National Ambient Air Quality Standards (NAAQS). The blood parameters, namely white blood cells (WBC), red blood cell (RBC) and platelets counts, demonstrated non-significant differences between workers exposed to the PM as compared to the control gro

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Publication Date
Tue Dec 01 2020
Journal Name
Systematic Reviews In Pharmacy
A Study On The Effects Of Risk Factors On The Pathology And The Development Of Breast Cancer In Iraqi Women
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Breast cancer is one of the most important malignant diseases all over the world. The incidence of breast cancer is increasing around the world and it is still the leading cause of cancer mortality An Approximately 1.3 million new cases were diagnosed worldwide last year. With areas rising increasing, risk factors for breast cancer including obesity, early menarche, alcohol and smoking, environmental contamination and reduced or late birth rates become more prevalent. In Iraq, breast cancer ranks first among types of cancers diagnosed in women. This study was conducted on one hundred twenty women with breast cancer that was evaluated and investigated for the possible role of the risk factors on the development of breast cancer in females. T

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Publication Date
Fri Feb 01 2019
Journal Name
Journal Of Economics And Administrative Sciences
Adopting IPSASs and its impact on the quality of financial reporting and performance evaluation in Iraqi government units
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Abstract

     Performance evaluation is of great importance in all countries of the world, because it has a prominent and effective role in determining the efficiency and effectiveness of the optimal use of available resources, which are rare and important in achieving the desired objectives. With the continued growth of public spending and the limited resources, the State seeks to achieve its objectives through its units with minimal expenditure or deficit, rationality and wastefulness in the spending. In many countries, particularly developing countries, reforms are made in the public sector to achieve that goal through the adoption of IPSAS, which is reflected in the developmen

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Publication Date
Mon Mar 01 2010
Journal Name
Al-khwarizmi Engineering Journal
The Effect of Mechanical Combined Contact Stress with Buckling Load on the Stress Distribution in the Ball and Socket Joint Mechanism
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The design of components subjected to contact stress as local compressive stress is important in engineering application especially in ball and socket Joining.  Two kinds of contact stress are introduced in the ball and socket joint, the first is from normal contact while the other is from sliding contact. Although joining two long links (drive shaft in steering cars) will cause the effect of flexural and tensional buckling stress in hollow columns through the ball and socket ends on the failure condition of the joining mechanism. In this paper the consideration of the combined effect of buckling Load and contact stress on the ball and socket joints have been taken, epically on the stress distribution in the contact area. Different

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Publication Date
Tue Dec 06 2022
Journal Name
Iraqi National Journal Of Nursing Specialties
Effectiveness of the Health Action Process Approach on Promoting the Health Behaviors of Male High School Students in Al-Rusafa District
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Objectives: The study aimed to evaluate health behavior, evaluate Health Action Process Approach, determine the effectiveness of the Health Action Process Approach based the application of program on students’ engaging in regular physical exercise.

Methodology: The research design for this study was a quasi-experimental. The study sample included high school male students, the final sample size was(160 ) Non-probability sampling (convenience sample) are chosen, (80) students study group and (80) students control group.

Results: The results show there was no statistically significant difference in the HAPA constructs among family's socioeconomic class groups and less tha

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