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alkej-502
Free Convection in an Inclined Concentric Annular Square Cavities Filled With Porous Medium and Heated By Non-Uniform Temperature
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A numerical study of the two-dimensional steady free convection flow in an inclined annulus between two concentric square cavities filled with a porous medium is presented in this paper for the case when the side outer walls are kept with differentially heated temperature while the horizontal outer walls and the inner walls are insulated. The heated wall is assumed to have spatial sinusoidal temperature variation about a constant mean value. The Darcy model is used and the fluid is assumed to be a standard Boussinesq fluid. For the Cartesian coordinate system, the governing equations which were used in stream function form are discretized by using the finite difference method with successive under – relaxation method (SUR) and are solved by Gauss-Siedel iterative method. The upwind scheme was used for the transport terms in the energy conservation equation. The results are presented to demonstrate the streamlines, the isotherms, and the Nusselt number depending on the Rayleigh number ranging from (Ra =10 to 1000), dimension ratio from (Dr = 0.15 to 0.45), and the inclination angle from (= 0o to 45o). Also the effects of the amplitude (=0 to 1) and the wave number (f =0 to 5) of the heated side wall temperature variation on the free convection are investigated. The results show the effect of previous parameters (Ra, Dr,, , and f) on the flow fields and temperature profiles. It also show that the average Nusselt number is a strong function of the Rayleigh number, inclination angle, dimension ratio, and temperature variation. The peak value of the average Nusselt number based on the hot wall temperature is observed to occur at dimension ratio of (0.15), inclination angle of (40.1°), amplitude and wave  number (1 & 0.75) for Rayleigh number of (1000).

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Publication Date
Mon Dec 02 2024
Journal Name
مجلة الانبار للعلوم القانونية والسياسية
دور القانون الجنائي في حماية تاريخ الدول ( الاثار العراقية انموذجاً)
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Publication Date
Sun Apr 03 2016
Journal Name
Journal Of Educational And Psychological Researches
The effect of a counseling program to develop the skills of friendship among introverts children
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Some children are suffering from introversion in kindergartens , so it must be confront and obviated by specialists because it will inevitably lead to unsatisfactory results reflect negatively on the individual and the community together . And the introvert child is a miserable child incapable of social interaction or give - and - take with colleagues , lack of integration of the child to life leads to the obstruction of  participation with his peers in various activities.     Introversion  causes a real emotional deficit to the children of kindergartens which limits of possibility of their intellectual development and mental growth and that because of their isolation and poor focus in education

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Publication Date
Thu Nov 12 2020
Journal Name
Arab Science Heritage Journal
المواجهة العربية الإسلامية للمغول في شمال الجزيرة الفراتية وبلاد الشام
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The current study deals with the Islamic Arab  of Mongolian invasion  in  the Island of Euphrates. We have exposed  conditions of  Levant  before the Mongolian invasion and that includes   situations of princess  of Levant and their  caliphates , they have been unaware  the danger surrounding them  and their country. It has also included  the Islamic  Arabic threat  through  the integration of  Islamic Arabic  cities residents  in  Levant  to confront

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Publication Date
Mon Jan 01 2018
Journal Name
Journal Of The College Of Languages (jcl)
La langue et la quête de l'identité dans l’œuvre d’Annie Ernaux
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Since her early beginning in 1974 in her novel "Les armoires vides", Annie Ernaux writing about life in all its various aspects remained her main goal. This novel gave the earliest signals of what would happen later on in her literary career. Indeed, her works showed abilities of echoing reality, her sufferance and experiences via the use of simple and clear language. Add to this, her writings are to be viewed as an expression of deep felt journey, and a continuous search due to the consequent changes coming out of her identity.

    We try here to give an answer to the question about writing as to whether being, to Ernaux herself, a need for the search about her social and feminist identity, or a pure literary work

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Publication Date
Wed Feb 20 2019
Journal Name
Political Sciences Journal
The Earidler the earliey shiaa polifical thought studying on the Al- sheikh Al-tossy political ideas
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Abstract This research deals with the Al-Tossy contribution Islamic government and explain the directions of early shiaa political thoughts and knowing the opinions of Al-Shakh Al- Tossy in the Islamic Government

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Publication Date
Thu Jan 01 2009
Journal Name
Journal Of Educational And Psychological Researches
المفاهيم البيئية لدى طالبات كلية العلوم للبنات في جامعة بغداد
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مشكلة البحث

    لقد تفاقمت مشكلة تلوث البيئة في السنوات الأخيرة من العقد الأخير والعقد الأول من القرنين العشرين والحادي والعشرين على التوالي بشكل يلفت النظر. إذ انتشر الاستعمال غير العقلاني للموارد الطبيعية من مياه ملوثة وسكن غير صحي وغير ملائم وسؤ التغذية وظروف الصحة العامة الرديئة وانتشار العوادم التي تحدثها المركبات والمولدات التي انتشرت في أحياء المدن العراقية لتزوي

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Publication Date
Tue Nov 13 2018
Journal Name
Arab Science Heritage Journal
اصناف أصناف النساء اللواتي وردَ لعنُهُنّ في الحديث النبويّ الشريف
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Praise be to God, who is by His Power, righteous is done, and by His help to slaves who He likes, and God bless our Prophet Muhammad envoy mercy to the worlds, and upon his family and the good mates until Doomsday.After:

The fact that cursing is the far distance and expulsion from the mercy of God, curse has been proven by him - peace be upon him - for the many varieties in the Sunnah, with indication of a permit cursing the insurgents from the people of Qibla, either saying - peace be upon him -: (the believer never be as a curser  ...), what is meant by those who do not deserve damnation of those not cursed God and His Messenger, and for this we must remove words cursing from the Dictionary of our words following the examp

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Publication Date
Wed Jan 03 2018
Journal Name
الاستاذ
نقد الطاهر بن عاشور للاراء التفسيرية في مجال علوم القران
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في نقده للآراء التفسيرية في مجال علوم القرآن، ركز الطاهر بن عاشور، العالم التونسي المعروف، على تحليل وتقييم المناهج والمنهجيات المستخدمة في التفسير. استند بن عاشور في نقده إلى المنهج العلمي والمنطقي، مطالبًا بتطبيقه في فهم وتفسير القرآن الكريم. أبرز بن عاشور أهمية استخدام العلوم الإنسانية والاجتماعية في الفهم الصحيح للقرآن، مع التأكيد على الأسس اللغوية والتاريخية للتفسير. كما أكد على ضرورة اتباع منهج الاع

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Publication Date
Sun Nov 04 2018
Journal Name
Arab Science Heritage Journal
اثر أثر الدين في شخصية الملك أمنمحات الأول (1991-1961ق.م)
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The impact of religion in the character of the King Amenmhet I

1991-1961B.C.

This research try to show the  influence of the religion in the character of King Amenmhet I , he entered the names of the gods in the installation of  his names, because he aimed to  the trust of fellows  and to get the loyalty centers of worship, and deliberately enter the name of the god Amun in the composition of his name and make him  the first god of the state, which covered all the gods of Egypt, after the merge with each other, such as the gods Re became the god Amun - Re or after he inherited the functions of some of the other recipes such as what happened with the god Min

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Publication Date
Sat Jun 01 2024
Journal Name
دراسات دولية
توظيف خيارات استراتيجيات مكافحة التطرف العنيف في العراق وافاقها المستقبلية
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أن للتطرف العنيف أسباب متنوعة تقف وراء ظهوره وتمدده في دول العالم المختلفة على نطاق واسع، إذ إن لكل بيئة ظروفها وخصوصياتها الكلية والفرعية التي تسهم في تعزيز القدرة التأثيرية للسلوكيات العنفية في إطار مجتمع ما، لاسيما إذا علمنا إن التطرف العنيف المؤدي الى الإرهاب كسلوكيات عنفية متطرفة مدمرة للبناء المجتمعي ما كان ليستمر لولا وجود بيئة حاضنة وظروف تساعد في انتشاره واستمرارية قدراته التأثيرية في البناء السي

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