Sustainable Use of Natural Resources In Construction Works: a Case Study of Social Housing.

Optimizing the use of resources in the building process is a current problem and is also highly regarded in the latest European legislation. The problem can be tackled by minimizing waste production, promoting waste recovery and transforming waste into resources. In this work has been experimented the elaboration of a building project, for the social building intended use, which can be realized in all aspects in accordance with current regulations and which uses products containing materials from recycling. It relates to the methodology applied and the results obtained and the difficulties encountered in the development of the project

Matrix functions that preserve the strong Perron-Frobenius property

In this note, we characterize matrix functions that preserve the strong Perron-Frobenius property using the real Jordan canonical form of a real matrix.Comment: To appear in The Electronic Journal of Linear Algebr

Lagrangian Numerical Methods for Ocean Biogeochemical Simulations

We propose two closely--related Lagrangian numerical methods for the simulation of physical processes involving advection, reaction and diffusion. The methods are intended to be used in settings where the flow is nearly incompressible and the P\'eclet numbers are so high that resolving all the scales of motion is unfeasible. This is commonplace in ocean flows. Our methods consist in augmenting the method of characteristics, which is suitable for advection--reaction problems, with couplings among nearby particles, producing fluxes that mimic diffusion, or unresolved small-scale transport. The methods conserve mass, obey the maximum principle, and allow to tune the strength of the diffusive terms down to zero, while avoiding unwanted numerical dissipation effects