Ricerc@Sapienza

This paper presents a novel numerical approach to simulate H-plane rectangular-waveguide microwave circuits considering a reduced quasi-2D simulation domain with benefits for computational cost and time. With the aim to evaluate the attenuation of the full height 3D component, we propose a modified expression for the waveguide top/bottom wall conductivity. Numerical 2D simulations are validated against results from full wave 3-D commercial electromagnetic simulator.

The paper provides, as a first step, a critical, although not-exhaustive, review of the steps required for assessing the resilience of electric distribution systems to natural hazards, and identifies the required metrics and models still to be defined. Aiming to contribute towards that, the paper proposes an empirical-based analytical formula for estimating the expected damage frequencies to underground cable joints, when subjected to overheating. Empirical-based formulas for estimating the damage frequency to underground cables, subjected to earthquakes are also reported in the paper.

Numerical evaluation of the electromagnetic (EM) quantities induced inside the brain during transcranial magnetic stimulation (TMS) applications is a fundamental step to obtain the optimization of the treatment in terms of coil position and current intensity. In this sense, the human head model considered and the electromagnetic properties used to characterize the tissues have an influence on the EM solution. Thus, the aim of this study is to evaluate how different skin conductivities and different computational head models, i.e.