Thesiss

This work is focused on a search for strong gravitational lenses in early-type galaxies (ETGs). The total number of samples is 4,706 galaxies encompassing a magnitude range 15.0 < i < 18.0 and colour 3.5 < (u-r) < 5.0. Two databases were employed as the source of K-band images (…

There have been many changes in Geographical Information Systems (GIS)technology which are beneficial for analysis and visualisation of GeographicalInformation (GI) but these have failed to be applied to non GIS users. Thedevelopment of a computer based working environment for u…