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.
Forecasting has become common process and reality. Since man has found multiple forms of simple predictive predictions, fruitful predictive results have emerged, such as weather forecasting or trading on stock exchange. The research was organized by defining the problem, which was manifested by the question:
(What is the prediction in global logo design methods?)
The aim of the research: (revealing design prediction in the methods of global logos). The theoretical framework was: (the concept of prediction in the design of global logos), (methods of global logos), (types of prediction) and then were attached to indicators, results and conclusions, including:
- The color value of international logos came with human needs: a
Provisions related to nails in Islamic Fiqh
ان في هذه الاية الكريمة لآبلغ وصف للاكتئاب حيث الضيق الشديد والشعور باليأس من الدنيا والوحدة .
وقال المتنبي :.
كفى بك داء ان ترى الموت شافياً
وحسب المنايا ان يكن امانيا
وقال مجنون ليلى :.
وامطر في التراب سحاب جفني
وقلبي في هموم واكتئاب
الحزن والقلق والهم والغم جزء من حياة الناس وهناك كثير من العوامل الممه
... Show Moreالدور السياسي للاحزاب الاسلامية في تركيا
Black slaves formed a section of the Murabit community, and they had an important role in wars and in settling battles to the Murabit state. Murabit state lords have depended on them in many scales such as, wars or within the community boarders
تُمثل عملية صنع القرار السياسي في الكويت بمراحلها وآلياتها ومؤسساتها، معياراً على مدى تقدم النظام السياسي ونجاحه في تقدم الدولة. كذلك هي معيار لمستوى قوة تجذّر الديمقراطية بين الفرد الكويتي في المجتمع، ونتاج توازن التفاعل ما بين المؤسسات السياسية مع مؤسسات الدولة الرسمية والغير رسمية، اعتماداً على القانون لا على الأهواء والمصالح القبلية والعشائرية، لتأسيس دولة مؤسسات قبل دولة أفراد.
This research deals with the phenomenon of a similar voice phenomenon has founded
its own laws similar and includes the following phenomenon:
Azahrh aledgam: and Qdbent Tarifaoshrooth or dinaces and reflects the correlation
between language and reading and then apply the provision in sura blessed.
Phenomenon Alaalal and substitution, Two of the important acoustic phenomenon the
linguistic heritage has shown Alaalal types and the difference between him and the
substitution then counted their applications in Sura.
Similar phenomena: in name and deed shares bult causes and probability voices and
sound that refrais where tilt.
The Arabic medicine books have emphasized that the Arabic Pediatricians in their scientific career ,who searched in Various aspects concerns with pediatric , as well as that some medical results and phenomena emphasized some data related to this subject . Which operates at the present time attention and concern towards human and in public and towards Pediatricians in special.
This research contained from an introduction that interpreted the Arabic medical heritage in progressing medicines in Europe then it mentioned the prominence Arabic pediatricians . the researcher depended on references and sources which will the reader had found through research.
Wisdom in the era before Islam is soo famous and so mature And Wisdom in the age of Islam {the holy quran and AI Hadeeth AI shareef }is dealt with by different meanings that agree with the contexts in which it occurs its contacs One of meanings is wisesaying that occuars in the Halal and Haram .As to the wisdom of the Amawy age ,it was some times absent since it was not dealt with by the great Poets of that age .In the Poetry of AL-FARAZDAK , Wisdom was little and it expressed religious and phsycological meanings because wisdom is amessage that has along –rang .