The present work aims to study forward osmosis process using different kinds of draw solutions and membranes. Three types of draw solutions (sodium chloride, sodium formate, and sodium acetate) were used in forward osmosis process to evaluate their effectiveness with respect to water flux and reverse salt flux. Experiments conducted in a laboratory-scale forward osmosis (FO) unit in cross flow flat sheet membrane cell. Three types of membranes (Thin film composite (TFC), Cellulose acetate (CA), and Cellulose triacetate (CTA)) were used to determine the water flux under osmotic pressure as a driving force. The effect of temperature, draw solution concentration, feed and draw solution flow rate, and membrane types, were studied with respect to water flux. The results showed an increase in water flux with increasing feed temperature and draw solution concentrations In addition, the flux increased with increasing feed flow rate while the flux was inversely proportional with the draw solution flow rate. The results showed that reverse osmosis membranes (TFC and CA) are not suitable for using in FO process due to the relatively obtained low water flux when compared with the flux obtained by forward osmosis membrane (CTA). NaCl draw solution gave higher water flux than other draw solutions and at the same time, revealed higher reverse salt flux.
أشارت الجهود المعرفية السابقة إلى وجود اهتمام متزايد بالجماعات (Groups) على أساس أنها اللبنات الأساسية لقيام المنظمات. وقد فرض تعدد المنظمات في المجتمعات المعاصرة وتباينها من حيث أهدافها وطبيعة نشاطها، تجزئة فعالياتها إلى تخصصات عدة على وفق إطار تقسيم العمل، وبما أدى إلى تقسيم الأفراد العاملين إلى جماعات مختلفة في أدائها وأحجامها وشكلها، والتي تعمل جميعها لتحقيق هدف&
... Show MoreThe main subject of this poem is a chance meeting between Baudelaire and unknown beautiful lady. Her presence represents the far-fetched, magnificent beauty. This beauty forms an aspect of idealism that takes its real existence and disappears immediately.
This emotional poem deals with the continuous despair that dates back to the Romantic age where it was a key topic; the passing woman embodies destiny. All this comes from constant experience and mad love through the poet’s view to a woman paving the way toward the unknown. Baudelaire, however, noticed this unknown through a passer-by that reflected the real and magical image of this unk
... Show MoreLe Petit Prince est apparu en 1943 vers la fin de la vie de son auteur. La mondialité qu'a gagnée ce récit le rend un des livres les plus lus et les plus vendus dans le monde. Cette popularité en fait un des classiques de la littérature française.
En effet la littérature française a un impact profond et direct sur la vie intellectuelle et littéraire dans le monde arabe. La circulation des œuvres littéraires écrites en français a bien influencé les lecteurs arabes soit en langue française soit traduites en arabe. Cette réalité est identique lorsqu'on parle de la réception du Petit Prince ; l'œuvre la plus connue dans le monde entier dès son apparition officielle.
Ab
... Show MoreThe Studying of historian aspects in Al-Hadieth books , such as " Al-Musnad Book " subjected to Al-Imam Abi Yalaa Al-mousily" ,has great importance in the field of Islamic history , in which Al- Al-Imam Abi Yalaa Al-mousily has presented valued information that have significant impact on the understanding of history, Have a significant impact on the understanding of Islamic history
يعد موضوع الثورات العربية من الموضوعات التي تحظى بأهمية كبيرة على المستويين الاقليمي والدولي، لذا فقد طورت مؤسسات الابحاث الدولية ومراكز صنع القرار السياسي والاستراتيجي الاطر والمفاهيم الجديدة في مجال السياسة الدولية، نظرا للتطورات التي شهدتها المنطقة العربية والتي استدعت التطرق الى مجموعة من المفاهيم النظرية ذات العلاقة الوثيقة بما هو حاصل في المنطقة العربية من تغييرات مما تطلب الامر البحث والتدقيق ومن
... Show Moreبدأت الشركات تخطو خطوات متسارعة باستخدام أنظمة تكنولوجيا المعلومات في عملياتها المالية وباعتماد قليل على الورق والذي يتم الاحتفاظ بالنسخ الأصلية منه تعزيزا للإجراءات التي تمت معالجتها الكترونيا. إن ممارسة الشركات وبشكل متزايد الأسلوب الواقعي (Virtualization) في علاقاتها مع الموردين والمستهلكين والشركاء أدى للحاجة المتزايدة للثقة والتأكيد على مثل هذه العلاقات مما يولد ضغطا كبيرا ع
... Show MoreAbstract traditional acculturation is one of the significant phenomena which is used in the old and modern arabic poetry. Poets have found in this tradition and flourishing arena for acculturation and interaction to Express their thoughts and inspection
The history of nations & civilizations shaped with its intellectual and cultural heritage and accumulation of met through the stages and years
Önsöz
Ali Şir Nevai’nin vücuda getirdiği edebi Çağatayca, edebi ve canlı bazı Türk şivelerinin işlenmesinden ve kaynaşmasından hasıl olmuştur. Bu gün bu dilin
fonetik bünyesi hakkında, en çok bilgi veren, yine Nevai’nin kendisidir. Onun―Muhakeemet-ül-luğateyn‖ adlı eseri, bu bakımından büyük bir değer taşımaktadır.Bu eserinde Nevai, bir taraftan Türk dilinin Farsçaya üstünlüğünü ispata kalkışken, bir taraftan da kendi Türkçesinin fonetik ve morfolojik özelliklerini belirtmiştir. O, Arab imlası kaidesi üzerine ayni şekilde yazılarak, semantik yönden başka başka manalarda kullanılan kelimeleri sıralarken, açık bir surette, edebi Çağataya şivesinin fonetik bünyesini d
Anhdralazuri of Yazour a village Ramle Palestine, from a religious family of Abu Mohammed Yazouri arrived in Egypt in the year (439 AH / 1036 AD), and was aimed from behind, returned him to his previous position to assume spend Ramle, Fasttaa a senior statesmen to provide Abu Muhammad Yazouri L. Caliph assuming start, Vtm him so, raising its standing and became MetwallyDiwan or caliph, in the year (441 AH / 1049 AD) was assigned the Chief Justice did not stop at that, but the era of his post of the ministry a year (442 AH / 1051 AD), having proven merit in every Matulah, The minister Yazouri of the powerful minister aspiring and employers pens won several titles did not collect it for one by the judiciary, advocacy and ministry granted C
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