Md. Abeed Hassan

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Attitude control of a satellite is performed by controlling two main parameters, angular speed and altitude. An inappropriate value for each of these parameters can lead the satellite to be lost in space or fall to the earth. This paper presents altitude and speed control of geostationary satellites by means of two controllers, the first one is a PID(More)
In this paper, we present an algorithm to search and rank <i>top-k</i> approximately matched subtrees from a tree database, where the query is a collection of trees <i>i.e</i>. a forest. Even though existing algorithms can handle a single tree query, we argue that forest query would be significantly useful in some real life applications including biological(More)
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