In this work, functionally graded materials were synthesized by centrifugal technique at different
volume fractions 0.5, 1, 1.5, and 2% Vf with a rotation speed of 1200 rpm and a constant rotation time, T
= 6 min . The mechanical properties were characterized to study the graded and non-graded nanocomposites
and the pure epoxy material. The mechanical tests showed that graded and non-graded added alumina
(Al2O3) nanoparticles enhanced the effect more than pure epoxy. The maximum difference in impact strength
occurred at (FGM), which was loaded from the rich side of the nano-alumina where the maximum value was
at 1% Vf by 133.33% of the sample epoxy side. The flexural strength and Young modulus of the functionally
graded samples were enhanced by 43.69% and 52.74%, respectively, if loaded from the alumina-rich side.
On the other hand, when loading (FGM) from the epoxy side, the amount of decrease in bending resistance
was 122.4% while the improvement in bending modulus was 81.11% compared to pure epoxy. Scanning
electron microscopy (SEM) revealed the fracture surface of the impact samples and the gradient scattering of
nanoparticles in the epoxy matrix. Numerous applications can be used to manufacture the functionally
graded material by centrifugal casting method, including for the manufacture of gears and all bending
applications such as leaf springs.
The social support is considered one of the most important constituents of
society and the one which can ensure its unity.
The resources of social support are different accordind to the variety and
the multiplication of the net – work of the social relationships that are
established among the individuals. The importance of this variable is evident
in the emolional adaptation and the mental health as well as its role in mitigating of the illness threating and in accelerating the recovery. social support can enhance the individuals ability to tolerate and face the emotional
and physical problems in the time of cris and stressful life conditions.
The most important results are shown as follows :
1- It was
Praise be to God, Lord of the worlds, and prayers and peace be upon our Prophet Muhammad and his family and companions. And after:
For one of the greatest blessings of God Almighty upon us is the blessing of Islam, which brought people from darkness to light and from injustice and fear to security, justice, stability, and the preservation of blood, symptoms, rights, and sacrifices, because pride, strength, and dignity are what God chose and pleases His servants - namely - adherence to the Islamic religion, and in light of This must be said that the private legal defense (pushing the person) with its Islamic provisions and legislations is one of the great aspects that guarantees the establishment of a safe
The art of Islamic ceramics is considered one of the main pillars of the art of ceramics in the plastic arts, as his knowledge of what is presented in the Islamic arts intertwined in a special way. And the Islamic ceramics are indications of fertility and the rekindling of religious ties, controversy over them, and interpretation as additions to their vocabulary. Studies in the plastic arts began to empty the knowledge towards this direction, especially its relationship to the Arabic calligraphy and specifically the Islamic decoration, which derived the first aesthetic values from calling the artist Muslim pottery and potters to inviting the Arabic letter and Islamic decoration to indicate within the theory of "displacement" the aestheti
... Show Moreيسلط هذا البحث الضوء على ظاهرة لغوية، والتي يطلق عليها تسمية "التضاد". يبين هذا البحث مفهوم هذه الظاهرة، خصائصها، أنواعها، وأسبابها، في اللغتين الساميتين: السريانية والعبرية. حيث تم اعتماد المنهج المقارن في دراسة هذه الظاهرة اللغوية وتبيان وجوه التشابه واالختالف في ماهية هذا النوع من المفردات، أي األضداد، في اللغتين: السريانية والعبرية. ويشير البحث إلى نوعين من التضاد وهما: التضاد الذي يكون بين مفردتين مستقل
... Show Moreيعد الرثاء أساساً من أسس الموروث الشعري العربي، وهو باب من أبواب الشعر الرئيسة. وقد وجد الإنسان فيه بغيته في التعبير عن مكنون نفسه ساعة تكتظ بالألم، ومنفذاً يخرج منه لواعجه وأشجانه إلى الخارج في شكل تعبيري يحرر الدمعة، ويعاتب الموت. والرثاء غرض متطور ينمو مع نمو المجتمع والحياة ويسجل التغيير الذي يحصل في كل مرحلة من مراحل التاريخ، وهو نتيجة مهمة من نتائج اصطدام الشاعر بالحياة والأحداث. لهذا وقع اختياري على شع
... Show Moreيعد الالف الأول قبل الميلاد هو عهد ازدهار عظيم للعصر الأشوري الحديث إذ يمتد هذا التاريخ من بداية حكم آدد نراري الثاني عام 911 قبل الميلاد وحتى نهاية حكم الاشوريين السياسي عام 612 قبل الميلاد عندما سقطت نينوى على ايدي المقاتلين الميديين والكلدانيين الذين تحالفوا ضد الاشوريين،و وصل الأشوريون في هذا العهد قمة مجدهم في جميع النواحي العسكرية والسياسية حتى أن سلطتهم وصلت الى معظم انحاء
... Show Moreالطعن الاستئنافي طريق من طرق الطعن العادية، يلجأ إليه الخصم للطعن بالحكم الصادر ضده من محكمة البداءة في الأحوال التي يجيز فيها القانون الطعن بهذا الحكم ويبغي الطاعن بذلك عرض موضوع الدعوى البدائية كلاً أو جزءاً على محكمة الاستئناف بصفتها محكمة الدرجة الثانية في التقاضي لتصحيح الخطأ أو إكمال النقص في الحكم البدائي، فبمقتضى هذا الطعن يتم عرض النزاع أمام هذه المحكمة من جديد، لتنظر القضية من حيث الوقائع والقانو
... Show MoreConcurrent Engineering approved that it is distinguished technology efficiency as it reflect its affection on international great companies . Its becomes vital field connected with its ability to develop the products directly, as well as, its concentration on all local and international competition which need to research and expanded
This study deals with (concurrent engineering) subject in
(Dyala State Company for Electrical Industry) , to bring the benefits of this technology to develop 
تزداد أهمية وجود اللغة العربية على الشبكات الحاسوبية مع توجه المجتمع نحو مجتمع المعلومات, ونحو الاقتصاد المبني على المعرفة. ويصطلح عالمياً على هذا الوجود بكلمة المحتوى, فكيف يمكن أن نزيده
According to Bowens Family systems theory self – differentiation defiance as a
construct that consists of two interrelated abilities : the first is an intrapsychic
ability to distinguish between the thoughts and feelings , and an inter personal
ability to maintain connections with others while achieving an autonomous self .
The present research concerned in testing the hypothesis of marital similarity
(people married persons with the same level of self – differentiation).
The present research aimed to:
1. Measures self – differentiation of university officers .
2. Measures self - differentiation of sample husbands' .
3. Measures self - differentiation of sample wives .
4. Acquaint to the relation betwe