Abstract Seven geological sections have been examined and sampled with emphasis on sedimentological & diagenetic processes within Abu Ghaylan Formation and the contact relationships with the underlying Abu Shaybah and overlying Kiklah Formations. Based on current detailed field loggings and microscope investigations, 10 facies are recognized within Abu Ghaylan Formation. The lowermost succession characterised by an overall transition from continental fluvially dominated deposits of the Abu Shaybah Formation into transitional to marginal marine, tidal flat deposits of the Abu Ghaylan Formation upward. The transitional nature of this lowermost part succession is demonstrated by interbeddings of claystone, sandstone and fossiliferous facies arranging in coarsening up cycle, in which most probably deposited in estuary / beach environment.The Abu Ghaylan Formation generally wedges laterally eastward and exposes intermittently east of Wadi Ghan area resulting of syngenetic uplift of Wadi Ghan area followed by erosion (ElHinnawy & Cheshitev, 1975). A slightly earlier uplift and greater erosion in a westward sloping basin of deposition near the close of the Early Jurassic and Early Cretaceous times is suggested by Fatmi & Sbeta (1991). The current study reveals that several exposure surfaces are demonstrated within Abu Ghaylan Formation suggesting uplifting and erosion episodes interrupted Abu Ghaylan Formation, where a restricted distribution of Abu Ghaylan may suggest a local tectonic overprint.Although the overall impression is that the base beds of Kiklah Formation starts with sandstone and red clay beds as channel infill deposits above Abu Ghaylan carbonate unit with surface of unconformity, however, based on current close investigation, a sequence characterized by interbeddings of carbonate and greenish clay overlying Abu Ghaylan Formation with surface of unconformity and gradationally overlain by sandstone beds should be introduced as separate unit attributes to Kiklah Formation.The current study emphasizes and supports a solution collapse origin for the breccias and introduces better insight into architecture and geomorphology of the breccias bodies that are exposed in the area of study. The dissolution of evaporites is considered responsible for all breccias development in this stratigraphic interval. According to the occurrence mode of breccias, the breccias intervals have been divided into two main parts; a lower section of strata that contains collapsed paleocaves and an upper section of strata that is deformed to varying degrees due to the collapse and compaction of the section of paleocave-bearing strata. The sharp flat base, inverse grading, V-shaped/ sag structures and irregular undulating top of brecciated bodies are recognized within Abu Ghaylan Formation and typically characterize solution collapse processes. Based on field study and architecture relationships, five distinctive karst facies are recognized in the area of study.The early diagenetic genetically related processes probably interrupted the deposition of Abu Ghaylan Formation is a most possible assumption for the origin and timing of breccias formation.
أحمد أبوبكر الحلو (2015)

Abstract In this thesis, we present a set of scheduling algorithms that are used in designing core-based system-on-chips. Related techniques such as hardware /software codesign, and High-level-synthesis are defined. However, we selected some algorithms at system level and core level to implement them. They combined in system design methodology. Therefore, we used them for design exploration process. The methodology able to explore designs by scheduling them partitioning systems, and pipelining.Finally results obtained are encouraging to use the selected algorithm in designing efficient core-based system-on-chip systems.
مفيدة رمضان علي بلال (2010)

في هذه الرسالة، ندرس حل معادلة لابلاس في بعض الإحداثيات المنحية مع بعض تطبيقاتهم. أولا سنقوم بالتركيز على نظام الإحداثيات المنحنية وعلى إيجاد معامل القياس الذي يعتبر مهم في كتابة معادلة لابلاس لآي نظام إحداثي منحني. تم تناولنا الإحداثيات الاسطوانية والكروية وحل معادلة لابلاس في هذه الإحداثيات بالإضافة إلى تطبيق ديرشليت لنطاق محدود ب (اسطوانة أو كرة). تم اتجهنا إلى حل معادلة لابلاس في نظام الإحداثيات الحلقية حيث درست باستفاضة، بالإضافة إلى الإحداثيات ذو القطبين وعلاقتها بالإحداثيات الحلقية، ومسالة ديريشليت الداخلية والخارجية. Abstract In this thesis, we study the solution of Laplace's equation in some curvilinear coordinates systems with some applications. We will concentrate first on curvilinear coordinates and find scale factor which is important in writing the Laplace's equation for any curvilinear coordinate system. And we presented the (cylindrical, spherical) coordinates system and the solution of Laplace's equation in these coordinates, as well as Dirichlet application with closed domain (cylinder, sphere). Finally, solutions of Laplace's equation in toroidal coordinates system were studied in details, also we studied the bipolar coordinates system, and its relation with toroidal coordinates, as well as Dirichlet problem for a domain bounded by a toroidal surface
صالحة ونيس بحور (2015)