This article describes how affordability, acceptability, and reliability of energy supply are three important concerns for government. Due to the crude oil restrictions and its environmental impacts, a replacement of other energy sources has become more important in recent years. Natural gas is...

The proliferation of information and communication technology has made exchange of information easier than ever. Security, Duplication and manipulation of information in such a scenario has become a major challenge to the research community round the globe. Digital watermarking has been found to...