This volume constitutes the refereed proceedings of the Third International Conference on
Advanced Science and Technology AST 2011 held in Seoul South Korea in September 2011. The
37 revised full papers presented in this volume were carefully reviewed and selected from
numerous submissions. The papers feature ideas problems and solutions relating to the
multifaceted aspects of the Advanced Science and Technology such as communication and
networking ubiquitous multimedia computing security technology and infromation assurance
computer science software engineering and applications thereof bio-science and bio-technology
u- and e-service science and technology database theory and application control and
automation signal processing image processing and pattern recognition as well as grid and
distributed computing.
