Abstract:In this study the problems of satellite orbit design and simulation are tackled and an object oriented satellite tool OOST is developed. The tool with its three main modules enables the user to plan and design different satellite missions. It performs all orbital calculations needed, simulates the target orbit and performs analysis on the current active satellite(s). The simulation module of OOST has been used to provide orbit design and satellite simulation for all geocentric orbits using an interactive world map that is synchronized with simulation time. OOST uses a predefined library of orbital mechanics functions to perform the required calculations. Also it allows users to call the library in their own external programs. A satellite database, containing data from more than 900 active satellites, has been linked to OOST in order to allow comparisons of different satellites. A Data Mining technique is applied to the satellite data. The technique as such relies upon the Decision Tree. It leads to discover valuable data related to classifying satellites and defining the trends of their owners. This classification is based on classifying satellite orbits into two trends, one representing the majority of owners and the other represents special cases. These orbits have been analyzed using different simulation capabilities of the Ground Track Module. The applications that have been studied in this study are communication, remote sensing and military missions.

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The researcher saw that the presentation of two schools in the language function, one of which represents one of the flags of the linguistic heritage (Ibn Jannie), which found the features of linguistic thinking, especially in his books "characteristics, the secret of the industry of expression, and calculated" He is, in my opinion, the first pioneer in functional studies And the second French scientist (André Martineh), a pioneer of the functional school in Western Languages studies, where he took the language function concept and terminology a large area in his linguistic analyzes. This research is divided into sections, first: the job and the principles of functional in which the job dealt with language and terminology and then touched on the function of the language in which the views of Ibn Jannie and Martini were presented in relation to this aspect of social language and its continuity And then came the requirement of dual chopping or the so-called double-word, and concluded the a voice phenomenon mentioned by Ibn Jannie and Martineh, which is the phonology -the Science of Voices -and then the search of the most important results

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