Ricerc@Sapienza

Hydrogen is becoming an attractive alternative for energy storage and transportation, because of the elevated energy content per unit of mass and possibility to have zero carbon-emission vehicles. For these reasons, hydrogen's share in global market is expected to grow substantially in the coming years. Today, hydrogenfueled buses and cars are already available, and several refueling stations are operating in different countries around the world.

This paper illustrates the results obtained in the last phase of the NACIE-UP benchmark activity foreseen inside the EU SESAME Project. The purpose of this research activity, performed by system thermal–hydraulic (STH) codes, is finalized to the improvement, development and validation of existing STH codes for Heavy Liquid Metal (HLM) systems.

We present a simple web experiment in which participants are asked to listen to a small number of songs and download the two they liked the most. In the experiment, participants were subject to common types of online feedbacks such as star ratings, recommendations and expert advice. Somewhat surprisingly, such online cues had no impact on market shares, but a significant difference emerged as far as market volume was concerned.