Several bifurcation scenarios near grazing bifurcation are studied to examine the evolution of the system dynamics from a geometrical point of view. The geometrical conditions are obtained for the ...

The modal expansion of the fields is complicated by the coupling of the basic modes by the imperfect walls. To avoid this difficulty, and in view of the large guide dimensions relative to the free ...

What is the true story hidden behind the geometrical patterns of Pyrgi? Video by Iliana Mier, Executive Producer Anna Bressanin An insect hunter from New Zealand named George Hudson is ...