Design of Wireless Sensor Nodes for Structural Health Monitoring applications

Enabling low-cost distributed monitoring, wireless sensor networks represents an interesting solution for the implementation of structural health monitoring systems. This work deals with the design of wireless sensor networks for health monitoring of civil structures, specifically focusing on node design in relation to the requirements of different structural monitoring application classes. Design problems are analysed with specific reference to a large-scale experimental setup (the long-term structural monitoring of the Basilica S. Maria di Collemaggio, L’Aquila, Italy). Main limitations emerged are highlighted, and adopted solution strategies are outlined, both in the case of commercial sensing platform and of full custom solutions

Performance of value‐ and size‐based strategies in the Italian stock market

This paper investigates the performance of size‐ and value‐based strategies in the Italian stock market in the period 2000–2018. Previous research argued the impossibility to define properly value‐sorted portfolios due to the inaccuracy of book‐to‐market ratios available for Italian listed stocks. Using more accurate data, we implement portfolios sorting based on value and growth stocks, to assess the relevance of the value factor in the Italian stock market. We find that the capital asset pricing model fails to explain the cross‐section of returns on the different strategies while the Fama and French three‐factor model provides a better fit. The results show that all three factors are significant in explaining Italian stock returns during the sample period. Unlike previous studies, which either found no value effect at all or no clear‐cut results when testing the book‐to‐market variable, we find that the value factor is statistically significant and the associated risk premium is of a considerable size

The GRETA Architecture for Energy Efficient Radio Identification and Localization

none20siThis paper presents an overview of the innovative solutions developed within the Italian project GRETA (GREen TAgs and sensors with ultra-wide-band identification and localization capabilities), whose aim is the development of a distributed and comprehensive system for identification, localization, tracking and monitoring in indoor scenarios. The system is based on hybrid UWB-UHF RFID tags, and the realization and experimental validation of novel tag prototypes based on environmentally friendly materials is a major achievement of the project.mixedDecarli, Nicolo; Guerra, Anna; Guidi, Francesco; Chiani, Marco; Dardari, Davide; Costanzo, Alessandra; Fantuzzi, Marco; Masotti, Diego; Bartoletti, Stefania; Dehkordi, Jinous Shafiei; Conti, Andrea; Romani, Aldo; Tartagni, Marco; Alesii, Roberto; Di Marco, Piergiuseppe; Santucci, Fortunato; Roselli, Luca; Virili, Marco; Savazzi, Pietro; Bozzi, MaurizioDecarli, Nicolo; Guerra, Anna; Guidi, Francesco; Chiani, Marco; Dardari, Davide; Costanzo, Alessandra; Fantuzzi, Marco; Masotti, Diego; Bartoletti, Stefania; Dehkordi, Jinous Shafiei; Conti, Andrea; Romani, Aldo; Tartagni, Marco; Alesii, Roberto; Di Marco, Piergiuseppe; Santucci, Fortunato; Roselli, Luca; Virili, Marco; Savazzi, Pietro; Bozzi, Maurizi