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 Baha'is are a group that belongs to the Baha'iya, the Baha'iya according to the encyclopedia of Religion Sciences is a modern religious sect appeared in existence in the middle of the ninetieth century. The number of their believers is around six million people of different parts of the world. its main center lies in Haifa city in Palestine.
This research psychological construction in the Koran, and the researcher with an overview of the importance of and the need HSCode Elbe.
Built Koran souls on faith and piety , the more you build good was the commitment approach Koran evident , because the Koran built for these souls path will not Tdilh never astronomer can occur amendment or a change in the character of a man in his behavior it is necessary to modify or change his ideas and trends as the human behavior is influenced by a major impact his ideas and trends , the Inn Koran to change people's ideas and attitudes and behavior and to guide them and change what they are in it from going astray and ignorance and directing them to what it Slaham and well-being , and prov
... Show MoreTerrorism is an old phenomenon, but awareness of its seriousness talk of where to stretch the impact of the terrorist crime and the magnitude of the results as well as the community's awareness of the newly therefore appeared studies and special laws to deal with this phenomenon, especially that this phenomenon has increased the time being to enter an organization where the scientific methods and modern techniques that cause destruction and horror of mass.That the term terrorism in the modern era did not materialize and actually only in 1793 and that was when he declared Robespierre (Robespierre) the beginning of the reign of terror or Alrhb (Reign of terror) which lasted in France from March 10 1973_27 July 1794 where it was the execution
... Show MoreContinued Ottoman rule in the Arab world until the end of World War I in 1918, and during the four centuries of Ottoman control, care of the Ottomans install and floating their rule, and to prevent the Arabs from the establishment of a political entity separate from the people to facilitate the rule of the Arab world and to ensure the
This paper deals with the meaning of cultural interaction in the hadith &also foundation that prophet (peace on him) followed through his invitation & rejecting all forms of injustice, oppression & racial discrimination.
الادب في اللغة ملكة تقصي من قامت به عن كل ما يشبنه
او هو حسن الخلق وفعل المكارم
او الظرف وحسن التناول
او الالتزام لما يندب له الانسان(1) .
وقد كثر استخدام هذه اللفظة في التراث فقيل ادب الطبيب ، وادب الوزير، وادب القاضي ، وادب المائدة ، وادب الخط ، وادب المعلم والمتعلم ، وادب المعلم في نفسه وفي درسه ،وادب المتعلم مع استاذه وادب البحث والدرس.
Prof.Dr. Yassin Khudair
Baghdad University
Faculty of Islamic Sciences
Department of Fundamentals of Religion
أهمية البحث والحاجة أليه
لماذا الأهتمام بالشخصية ؟
- بسبب الواقع العالمي المنكوس حيث بات الأنسان يعيش غريباً معزولاً عن أعماق ذاته ، ويحيا مقهوراً من أجل الوسط المادي الذي يعيش فيه .
- أن خلاص الأنسانية الأكبر لن يكون ألا بالنمو الروحي والعقلي للأنسان ، وتحسين ذاته وأدارتها على نحو أفضل ، وليس في تنمية الموارد المحدودة المهددة بالهلاك .
- أن ت
That it is essential to be for us to recognize is that the phenomenon of poverty are addressed most of the doors of Arab countries in general and Iraq in particular, with the contrast between Qatar and another, and that the deteriorating situation of developing countries it is clear that poor people are victims of exploitation and inequality.
That dealing with the phenomenon of poverty should be more present in mind, especially since the Arab world that enters the era of so-called globalization, as more people poor, and the increase of the utilization of materials Arab interests abroad under the competition is unequal and the impoverishment of deliberate environmental and resource Arab