Transport infrastructures and regional development: The discovery of centrality of the container terminal of Gioia Tauro in the Mediterranian

European container terminals of Mediterranean are enjoying of a discovery on the more dynamics routes of the whole world that link Europe to Far East-Pacific. This centrality consists in the acquisition of a relative advantage in terms of 6 -7 days less of navigation respect to big ports of call of North Europe. In this framework, the new installation of Gioia Tauro?s container terminal is demonstrating to be one of the most important junctions of transhipment of South Europe. This could manifest completely his potentialities in the same measures in which will be guided at the same time adequate territorial policies and lay the bases for logistic systems of high level. This means to direct in the national and continental hinterland the construction of a system of infrastructures of road and railway junctions necessarily adequate and advanced in terms of technician level and capacity of response. Only in this sense it will be possible to initiate a competition forms among economic systems in a territorial base rather than among single productive units. In fact, after a ten-year period of interventions for sectors, transeuropean network of transportation could start to considered as a first systematic tentative of integrated actions among transportation politics and regional politics of European Union. By starting, therefore, by a systemic approach, the paper turns to a simulation model and to specific inquiry on the field to gather the impacts of the container terminal to territorial level. The aim is to verify if and in which way the politics of national and community transport linked to the birth of container port of Gioia Tauro, will assume the features of a complex regional development politics able to mitigate and/or prevent the imbalances become worse in the ambit of European Union.

Evidence of a Critical Phase Transition in Purely Temporal Dynamics with Long-Delayed Feedback

We wish to thank S. Lepri and A. Politi for useful discussions. MF and FG acknowledge support from EU Marie Curie ITN grant n. 64256 (COSMOS).Peer reviewedPublisher PD

Subspace code constructions

We improve on the lower bound of the maximum number of planes of ${\rm PG}(8,q)$ mutually intersecting in at most one point leading to the following lower bound: ${\cal A}_q(9, 4; 3) \ge q^{12}+2q^8+2q^7+q^6+q^5+q^4+1$ for constant dimension subspace codes. We also construct two new non-equivalent $(6, (q^3-1)(q^2+q+1), 4; 3)_q$ constant dimension subspace orbit-codes

Shock formation in the collapse of a vapor nano-bubble

In this paper a diffuse-interface model featuring phase change, transition to supercritical conditions, thermal conduction, compressibility effects and shock wave propagation is exploited to deal with the dynamics of a cavitation bubble. At variance with previous descriptions, the model is uniformly valid for all phases (liquid, vapor and supercritical) and phase transitions involved, allowing to describe the non-equilibrium processes ongoing during the collapse. As consequence of this unitary description, rather unexpectedly for pure vapor bubbles, the numerical experiments show that the collapse is accompanied by the emission of a strong shock wave in the liquid and by the oscillation of the bubble that periodically disappears and reappears, due to transition to super/sub critical conditions. The mechanism of shock wave formation is strongly related to the transition of the vapor to supercritical state, with a progressive steepening of the compression wave to form the shock which is eventually reflected as an outward propagating wave in the liquid

Diffuse interface modeling of a radial vapor bubble collapse

A diffuse interface model is exploited to study in details the dynamics of a cavitation vapor bubble, by including phase change, transition to supercritical conditions, shock wave propagation and thermal conduction. The numerical experiments show that the actual dynamic is a sequence of collapses and rebounds demonstrating the importance of nonequilibrium phase changes. In particular the transition to supercritical conditions avoids the full condensation and leads to shockwave emission after the collapse and to successive bubble rebound

Superradiant scattering in fluids of light

We theoretically investigate the scattering process of Bogoliubov excitations on a rotating photon-fluid. Using the language of Noether currents we demonstrate the occurrence of a resonant amplification phenomenon, which reduces to the standard superradiance in the hydrodynamic limit. We make use of a time-domain formulation where superradiance emerges as a transient effect encoded in the amplitudes and phases of propagating localised wavepackets. Our findings generalize previous studies in quantum fluids to the case of a non-negligible quantum pressure and can be readily applied also to other physical systems, in particular atomic Bose-Einstein condensates. Finally we discuss ongoing experiments to observe superradiance in photon fluids, and how our time domain analysis can be used to characterise superradiant scattering in non-ideal experimental conditions.Comment: 11 pages, 6 figures Version 2: Updated first author affiliation, fixed grammatical typo