Ricerc@Sapienza

This paper is a part two of a study investigating the relative importance of the built environment, sociodemographic,
and attitudinal factors on mode choice. A semi-experimental approach that aims to
measure causal effects of the built environment is utilized. This paper reports spatial analysis, survey and
modeling results for San Francisco, CA, USA and compares the results with a previous similar study in
Rome, Italy. Results reveal that the local street network’s integration is important in both cities and that in

Heating and cooling in buildings is a central aspect for adopting energy efficiency measures and implementing local policies for energy planning. The knowledge of features and performance of those existing systems is fundamental to conceiving realistic energy savings strategies. Thanks to Information and Communication Technologies (ICT) development and energy regulations’ progress, the amount of data able to be collected and processed allows detailed analyses on entire regions or even countries.

The present contribution proposes a decision support paradigm that elucidates factors ensuing from Product-Service System implementations and that might be neglected due to assessment difficulties. These aspects emerge when companies are exposed to new business model scenarios underlying servitized propositions.

A method for assessing and mapping the wind energy potential of near- and off-shore areas by means of multi sensor satellites (i.e. the recently launched Sentinel 1) is shown in this paper and applied to a case study area in the north-west coast of the Sicily island. The presented method aims at i) preliminary identifying the best sites for wind turbine generators installation and/or ii) estimating the average wind potential in small areas (e.g. archipelagos) for energy planning purposes.

In this work we discuss the degradation chemistry on carbon-free electrodes of two ether based electrolytes for Li-O2 batteries, i.e. tetraethylene glycol dimethyl ether (TEGDME) and dimethoxy ethane (DME) with lithium trifluoromethane sulfonate (LiTfO) as salt. To this aim we developed an all-metallic positive electrode by electrodeposition of a gold dendritic film on a nickel foam (Au@Ni).

The aim of the paper is to preliminary analyse the performance of several nearshore Wave Energy Converters (WEC) sited in the west coast of Sicily close to the Favignana island's shorelines. In particular, the four WEC technologies that have been considered are Wave Star, Oyster, Wave Dragon and Archimedes Wave Swing. The power performance assessment has been developed through the comparison of various scaled versions of the WEC using a proved scaling process based on the Froude similitude.

Energy costs, carbon dioxide emissions, security of supply and system stability are common challenges in small islands. Many European islands have become pilot sites of energy innovation, but this green transition goes slowly in other ones usually not connected to the national grid.

Il concetto di Smart Campus ha iniziato a svilupparsi negli ultimi anni come possibile adattamento del modello di città intelligente ai campus universitari. La trasformazione di un campus standard in uno Smart Campus richiede lo sviluppo di un quadro di valutazione che consenta di valutare lo stato dell'arte mediante indicatori compositi. Applicando una nuova metodologia, lo scopo di questo progetto è definire un insieme globale di indicatori.

A Cross-Country Fault (CCF) is the simultaneous occurrence of a couple of Line-to-Ground Faults (LGFs), affecting different phases of same feeder or of two distinct ones, at different fault locations. CCFs are not uncommon in medium voltage (MV) public distribution networks operated with ungrounded or high-impedance neutral: despite the relatively small value of LGF current that is typical of such networks, CCF currents can be comparable to those that are found in Phase-To-Phase Faults, if the affected feeder(s) consists of cables.