Binary surface reliefs with sub-wavelength features making up a pseudorandom pattern based on mathematical Galois fields GF(pm) [1, 2] can scatter incoming waves into a large number of diffraction maxima within a huge solid angle.A one-dimensional (1D) Galois number sequence can be folded into a here two-dimensional (2D) array by the sino-represent
Study region: A large, densely populated area nearby Padova (Veneto Region, Italy) is exposed to floods owing to the Brenta-Bacchiglione river network, which is formed by two main rivers and by a set of interconnected channels, control structures and pump stations.Study focus: The Brenta and Bacchiglione rivers suffer from an increasing pressure in
The term knuckleball in sporting jargon is used to describe a ball that has been launched with minimal spin, resulting in a trajectory that is erratic and unpredictable.This phenomenon was first observed in baseball (where the term originated) and has since been observed in other here sports.While knuckleball has long fascinated the scientific comm