Quantitative extensions of reaction systems based on SOS semantics

On the correlation between human fixations, handcrafted and CNN features

Traditional local image descriptors such as SIFT and SURF are based on processings similar to those that take place in the early visual cortex. Nowadays, convolutional neural networks still draw inspiration from the human vision system, integrating computational elements typical of higher visual cortical areas. Deep CNN's architectures are intrinsically hard to interpret, so much effort has been made to dissect them in order to understand which type of features they learn. However, considerin...

Repair of reinforced concrete bridge columns subjected to chloride-induced corrosion with ultra-high performance fiber reinforced concrete

The rehabilitation of reinforced concrete (RC) bridge columns subjected to chloride-induced corrosion is addressed in the present paper. The proposed strategy is based on the replacement of the original external layer made of normal-strength concrete (NSC) with ultra-high performance fiber reinforced concrete (UHPFRC), and it additionally involves the substitution of the existing corroded longitudinal reinforcement with new machined steel rebars. This repair technique aims at restoring streng...

Numerical simulation and simplified calculation of the effective slab width for composite cable-stayed bridges

With the advent of progressively large and complex structures, the simultaneous presence of axial forces and bending on bridge decks is emerging as a recurring and increasingly concerning phenomenon. In the design of steel–concrete composite cable-stayed bridges, the combination of the axial force, mainly induced by the inclination of the cables, and bending is being increasingly considered to realize long spans that can bear the weight of the structure while ensuring a high rigidity of the d...