Articolo in rivista

Lattice Boltzmann Analysis of Fluid-Structure Interaction with Moving Boundaries

Numerical Linear Algebra in Signal Processing Applications

Some properties of the asymptotic location of poles of Padè approximants to noisy rational functions, relevant for modal analysis

In this paper, the modal analysis model, made up by a linear combination of complex exponential functions, is considered. Padè approximants to the Z-transform of a noisy sample are then considered, and the asymptotic locus of their poles is studied. It turns out that this locus is strongly related…

Nondestructive evaluation of spatially varying internal heat transfer coefficients in a tube

We derive a rule for the reconstruction of the internal heat transfer coefficient hint of a pipe, from temperature maps collected on the external face. The pipe is subjected to internal heating by connecting two electrodes to the external surface. To estimate hint we apply the perturbation theory…

On the use of temporal series of L- and X-band SAR data for soil moisture retrieval. Capitanata plain case study

This paper investigates the use of time series of ALOS/PALSAR-1 and COSMO-SkyMed data for the soil moisture retrieval (mv) by means of the SMOSAR algorithm. The application context is the exploitation of mv maps at a moderate spatial and temporal resolution for improving flood/drought monitoring at…

Asymptotic Behavior of Solutions for Nonlinear Volterra Discrete Equations

We consider nonlinear difference equations of unbounded order of the form x i = b i - ? i j = 0 a i , j f i - j ( x j ) , i = 0 , 1 , 2 , ... , where f j ( x ) ( j = 0 , ... , i ) are suitable functions. We establish sufficient conditions for the boundedness and the convergence of x i as i -…

Estimate of traffic emissions through multiscale second order models with heterogeneous data

In this paper we propose a multiscale traffic model, based on the family of Generic Second Order Models, which integrates multiple trajectory data into the velocity function. This combination of a second order macroscopic model with microscopic information allows us to reproduce significant…

On the role of specific drug binding in modelling arterial eluting stents

In this paper we consider drug binding in the arterialwall following delivery by a drug-eluting stent. Whilst it is now generally accepted that a non-linear saturable reversible binding model is required to properly describe the binding process, the precise form of the binding model varies between…

Multiple-component lattice Boltzmann equation for fluid-filled vesicles in flow

We document the derivation and implementation of extensions to a two-dimensional, multicomponent lattice Boltzmann equation model, with Laplace law interfacial tension. The extended model behaves in such a way that the boundary between its immiscible drop and embedding fluid components can be shown…

Lattice Boltzmann models for non-ideal fluids with arrested phase-separation