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.
Investment Bases directly and closely to an environment characterized by political, social and economic stability, and through a range of policies and institutions and economic laws that affect investor confidence and convince him directing investments to country without the other, where inter conditions and circumstances affecting the trends of capital and settle in, and political situation of the country and what is characterized of stability or disorder as well as economic conditions that are affected by what is distinguishes the country from geographic and demographic characteristics are reflected on availability of production elements and country's infrastructure.
... Show MoreThe paper deals with the position of the Contemporary Islamic political thought concerning the Islamic of pluralism in party system and the role of political parties in the future Islamic state . this paper focuses on the vision of Mr. mohammad hussain Fadlulah to these topics and his opinion in the legitimacy of alliancy with secular political parties The paper , also discussed his opinion concerning the adaptation of political relations between the Islamic political parties under the rules and lows of secular political system in order to have broad positively the public good
This research has been devoted to the study narratines of the metaphysical concepts in Egypt during the Mamluk era ( 648-923 AD/1250-1517 AH). The study consists of three sections and an introductionwhich highlights the study at that time for its great impaction public life in Egypt.
The Praise be to God, Lord of the Worlds, and prayers and peace be upon the Master of the Messengers and his pure and pure family, and may the peace and blessings be abundantly
التجربة الاتحادية في دولة الامارات العربية المتحدة
Dans le romantisme et ses textes, il est important de mentionner qu'il n'existe qu'un seul thème romantique qui est l'amour, mais assez pour avoir fait du XIXème siècle, une révolution du texte romantique. L'amour consiste à la réduction de l'univers, à un seul être, puis la dilatation de ce seul être, voilà l'amour. cet amour passionnel n'est qu'un arrangement froid et réfléchi excluant d'emblée l'exaltation des sentiments. Néanmoins, cet amour passionnel peut être brutal. quant à la mort, dans le drame romantique, l'amour et la mort sont liés. Beaucoup d'histoires d'amour finissent le plus souvent par un suicide passionnel : le romantique cherche à l'atteindre par l'amour un sentiment sanctifié, et divinisé ; mais c
... Show Moreإن التعبير ينوء بأثقال كبيرة ، وهذه المشكلة قد تتضاعف ،لأنَّ التعبير يحتاج إلى مها ا رت " لم
تنجح المدرسة في تنميتها تنمية صحيحة " ولأنّهُ يصطدم بعوامل معوقة متعددة منها ثنائية اللغة ،
وكثافة الصفوف ، وغياب المنهج ، وٕاهمال التصحيح، ووضع المدرس لكلمة "لوحظ" من غير
ملاحظة شيء وقلة الحصص ، وضعف الربط بين فروع اللغة ، والتساهل في إعداد المدرس.
وقد كان من نتائج د ا رسة أجرتها المنظمة العربية للتربية والثقافة
The method of request is one of the important rhetorical methods used by the creator in terms of rhetorical diversification, influence, artistic aesthetics and increasing textual coherence, and we tried through a group (Which torments are inferior) by the poet Majid Al-Rubaie, to shed light on these methods and their ability, displacement, relationality, direct and advertising interactions from them, and what they broadcast From metaphorical purposes is the second image of it, after its main image and title. This cohesion and harmony between the two images is an important and influential rhetorical trend
بصمات الذاكرة التاريخية في الحياة الوطنية العراقية
Incoming mail from The Arabian Gulf shifted its route to the city of
Aleppo in 1755 as it was used to be sent to Kuwait instead of the city of
Basra. That route became of great importance to the East India -English
Company. British government extended its influence to Muscat and the
southern coast of the Arabian Gulf after the Maritime peace treaty (Peace
Treaty General) being signed on January 21st 1820 and its immediate
aftermath of the treaties of peace with Sheiks of the region .Thereafter, Britain
started to spread its influence to Kuwait and practice pressures on is Sheikhs
who rejected to comply with the British pressures.
The actual activity of the British consuls in Kuwait mainly appeared
between th