Textural Characteristics and distribution of Coastal Sediments in the northern section of the Syrian continental shelf

Detailed textural study of the Northern section of the Syrian Continental shelf (N35.92991 E35.91785: N35.35752 E35.91542) has been carried out in order to determine the sediment nature and distribution. The sediments are mainly coarse to very fine-grained particles, moderately sorted, negatively skewed to fine skewed and leptokurtic to mesokurtic in nature. Interrelationship of various parameters shows bimodal nature of sediments having dominance of mainly medium to coarse sand. The major part of the sediment fall in coarse to very fine grained category (sand, silt and clay). Based on the CM (Coarser one percentile and Median size values in micron) pattern, the sediment fall in rolling and suspension field. These factors indicate that the sediments discharged from the rivers mixes with offshore sediments and with the sediments eroded from a source rock. Moreover, the wave energy conditions were high enough to disperse the sediments along the shelf and passing it to the open ocean and later dispersing them by littoral currents.

Study of sediment characteristics and distribution in the southern section of the Syrian continental shelf

Detailed sedimentary study of the Southern section of the Syrian Continental shelf (N 35.16022 E 35.92712: N 34.71354 E 35.94267) has been carried out in order to determine the sediment nature and distribution. The study of coastal sandy samples (from beach to 2m water depth) revealed variation in the sand colours from place to place. This indicates that there are many sources for coastal sand mostly derived from the hinterlands. Six sediment sorting types were identified along the continental shelf and these are: Sand; Sandy Mud; Slightly Gravelly Sand; Slightly Gravelly Muddy Sand; Slightly Gravelly Sandy Mud; and Gravel. The textural studies clearly establish that the sediments are of medium grain size, moderately well sorted, very negatively skewed and mesokurtic. These parameters confirm that the sediments were deposited under moderate to high energy conditions. These conditions vary from place to another according to the place of deposition and the nature of the source material on one hand and the severity of the kinetic energy namely ocean currents, marine eddies, waves and tides on the other hand.

Study of Islands Formation and Growing in thin films by AFM

In this paper we present a study of ZnS thin films thermally deposited on glass substrates, with different optical thicknesses. On topography micrographs and feature parameters obtained by Atomic Force Microscope, we pursued the islands formation and growing in ZnS thin films even on the same optical thickness of the film. For doing so, we analyzed the micrographs surface, using Watershed Segmentation and Wolf pruning that allow the detection of significant features on surfaces, Grain sorting operator and Parameter Distribution Study.

Graph Theory

بحث في نظرية البيان يحتوي الفصل الاول على أساسيات ومبادئ برمجية لبرمجة خوارزميات البيان و تمثيل البيان برمجيا , و يحتوي الفصل الثاني على شرح لطرق عبور البيان باستخدام خوارزميات البحث في العرض و البحث في العمق , فيما يعرض الفصل الثالث خوارزميات أساسية في البيان , مثل خوارزمية الترتيب الطوبولوجي و خوارزميات أقصر طريق دايكسترا Dijekstra و floyd warshall , التعامل مع الحالات التي يحتوي البيان فيها وصلات تكلفة سالبة و البيان الخالي من الدورات Acyclic .