M.Sc.

Abstract: Segmentation of MR images was formulated in this thesis as the problem of partitioning a set of feature vectors obtained from an MR image into a relatively small number of clusters. Segmentation of MR images is formulated as an unsupervised vector quantization process, where the local values of different relaxation parameters form the feature vectors which are represented by a relatively small set of prototypes.

Abstract: This thesis focuses on implementing packet filtering firewall technique for protecting SCADA system. It uses filtering criteria to decide whether to permit or deny packets entry into the network. Parts of the packet that are examined are; the source IP address, the destination IP address, and the Internet protocols carried by the packet. At the beginning, the miniature SCADA system was implemented on two computers to take overview on the basic component of SCADA system, and to preview the data transmission between them.

Abstract: The databases technology has acquired a great deal of attention from the academic community and computer industry for their wide use and success; it can be described as the most developed growing field in computer or information system. Distributed database helps eliminating many of the shortcomings of centralized database This work concerns with the design and implementation of mark system in the college of engineering of Nahrain University.