Ubiquitous Internet in an integrated satellite-terrestrial environment: The SUITED solution

yesThe current Internet architecture appears to not be particularly suited to addressing the emerging needs of new classes of users who wish to gain access to multimedia services made available by ISPs, regardless of their location, while in motion and with a guaranteed level of quality. One of the main objectives of so-called nextgeneration systems is to overcome the limitations of today¿s available Internet by adopting an approach based on the integration of different mobile and fixed networks. The SUITED project moves in this direction since it aims at contributing to the design and deployment of the global mobile broadband system (GMBS), a unique satellite/terrestrial infrastructure ensuring nomadic users access to Internet services with a negotiated QoS. A description of the main features of the GMBS architecture, characterized by the integration of a multisegment access network with a federated ISP network is given in this article. The GMBS multimode terminal is schematically described, and an overview of the so-called QoS-aware mobility management scheme, devised for such a heterogeneous scenario,is provided

Umbro Apollonio e l’Archivio della Biennale di Venezia (1948-1972)

In 1948 Rodolfo Pallucchini requested the collaboration of Umbro Apollonio to organize the 24th Venice Biennale. In 1949 the critic became the permanent curator of the Historical Archive of Contemporary Art (The Biennale Archive). First of all Apollonio organized the archival documentation of the Biennale and for this reason he thought of a new project for the library and the archive: to realize it he previously entrusted with the architect Carlo Scarpa and then with BBPR Group. After the great disorders of the 1968 edition, in 1970 Apollonio became Bienniale director. He curated with Dietrich Mahlow the special exhibition «Proposal for an experimental exhibition». On this occasion, a strong dialogue with the public was sought, focusing on issues such as art and society, art and production, analysis of seeing. The result was an exhibition holding arts from historical avant-garde to the most recent researches

Evidence of a geomagnetic effect on extensive air showers detected with the ARGO-YBJ experiment

The geomagnetic field causes not only the east-west effect on primary cosmic rays but also affects the trajectories of the secondary charged particles in the shower, causing their lateral distribution to be stretched. Thus, both the density of the secondaries near the shower axis and the trigger efficiency of detector arrays decrease. The effect depends on the direction of the showers, thus, introducing a modulation in the measured azimuthal distribution. The azimuthal distribution of the events collected by the ARGO-YBJ detector is deeply investigated for different zenith angles in light of this effect