Recent Researches in Engineering Mechanics, Urban & Naval Transportation and Tourism Proceedings of the 5th WSEAS International Conference on Engineering Mechanics, Structures, Engineering Geology (EMESEG '12) : Proceedings of the 5th WSEAS International Conference on Urban Planning and Transportation (UPT '12) : Proceedings of the 5th WSEAS International Conference on Maritime and Naval Science and Engineering (MN '12) : Proceedings of the 5th WSEAS International Conference on Cultural Heritage