One of the most important phenomenon that occurs in sheet metal forming processes is the spring-back, which causes several geometrical alterations in the parts. The accurate prediction of springback after bending unloading is the key to the tool design, operation control, and precision estimate concerning the part geometry. This study investigated experimentally the effect of pretension in three rolling direction (0, 90, 45 degree) on the springback behavior of the yellow brass, sheet under V shape bending die. The pre-tension ranges from five different levels starting of 11% to 55% from the total strain in each rolling direction by regular increase of 11 %, then bent on a V-die 90 degree for the springback estimate. From experiment the results revealat that the springback increment with increase pretension ratio and the springback in 45° rolling direction is considerable than the sbringback in 90° rolling direction and the springback in 90° is greater than the sbringback in 0° rolling direction.
The book (Al-Thaw’ Al-Lami’) (Bright Light) by AlSakhawi is one of the most important historical sources in the Hijri ninth century. In this book, the author mentioned the biographies of most famous scientists and other authors browsing the most prominent scientific
When Allah has chosen Arabic language to be the eternal language of the Holly Qura'an, Qura'an was the original resource of the perfect grand Arabic
This research aims at shedding light on the electronic disclosure of the financial information under the condition of the development of this kind of disclosure all over the world , and its effect on the job of auditing and accounting . It also aims to show the extent to which the observers of accounts are aware of their duties towards this kind of disclosure and to test the effect of some environment factors on the level of this awareness.
To achieve the aims of the research has been divided in to four parts. The first one deals with mathadolge of the research. The second parts is devoted to the theoretical aspect of the research referring to the notion of electronical, disclosure its features and effect on the auditing jo
... Show MoreThis paper aims to study Antonia's character and her mannish behavioral transition throughout the novel entitled My Antonia. Willa presents Antonia who shows her resolution and courage in facing and dealing with personal dilemmas and social circumstances. Willa portrays Antonia, who struggles in the new society and culture by working hard in changing the salty land of Nebreska and her destiny . Working in salty land day and night forces Antonia to lose her tender behavior and her beauty as a woman is changed too. She achieves her goals to live with her family in a new place with a dignity and respect though she looks like a man in her strength and body built . Willa Cather tries to explain that the major&
... Show Moreنهضة الامة العربية والاسلامية في فكر مالك بن نبي
This paper sheds light on aspects of environmental and climatic treatments in the groves mud existing in some Libyan oases. It reveals the architecture efforts and contributions to the adaptation of the construction and materials in order to organize the weather inside the building blocks to suit the nature of the human and his living in all seasons
الحديث عن محمد بن إسحاق النديم حديث عن عالم جليل كان له فضل تصنيف سفر خالد من أسفار المعرفة و العلم و سجل ضم عناوين ما أنتجته الأمة العربية الإسلامية في وقت عزها و مجدها و سطوع كوكبها في سماء الدنيا ، فجاء هذا الكتاب جامعا نافعا في بابه .
The research addresses a pattern of imagery which is regarded a Prominent feature of Abi Tamaam's Poetry (the image of implicit simile) which is based on the hidden signified and the signifier which can be deduced out of context . The investigation requires a study whose proof is based on imagery which is of three types: natural proof , human proof and Quran proof . After handling the realistic structures of this image, the researcher has shifted attention to its types and has dealt with the psychological domain , dividing it in two types: the sensory image and the mental image. The research is directed towards studying the implicit sentence regarding its styles of expression : declarative expression and composition expression . The
... Show Moreيعد النظام التعليمي لاي بلد انعكاسا للمستوى الثقافي والحضاري للمجتمع وعادة ما يحدد هذا النظام ويوجه من قبل التنظيمات السياسية والاقتصادية والاجتماعية في المجتمع كونها تعتمد علية في تحقيق اهدافها ,وصبحت الجامعة اليوم تمثل عمد النظام التربوي والتعليمي بما تمتلكه من كفاءات وقد ا رت وامكانيات بشرية ومادية تستطيع من خلالها رفد المجتمع بما يحتاجة من قد ا رت بشرية متعلمة في كافة الاختصاصات ومناحي الحياة لادامة ال
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