1,721,006 research outputs found
Centro Direzionale of Naples. A “smart” concept
Full text linkThe topic of urban planning linked to the growth of
smart cities is now quite common also in the urbansociological
debate. Recent studies (Besselaar,
Koizumi, 2005; Fistola, 2010) identify the main focus
of the smart city no longer exclusively in the strategic
role played by I.C.T. infrastructures, but above all in
the factors enabling urban growth, defined as the
ability to stimulate innovative urban developments,
along with an increasing attention to the environment,
eco-design, improved living levels, as well as the “biosocio-
environmental capital” (Corbisiero, 2013). Based
on this theoretical background, the paper highlights
the results of a research conducted in Naples on the
empirical case of the “Centro Direzionale”. It is an
intervention of urban design of considerable impact on
the city. The design and construction of the Centro
Direzionale of Naples is, in fact, an archetype of the
smart city; a primal testing of “urban intelligence” in
terms of transport systems, infrastructure, logistics,
systems for energy efficiency and technology. More
generally, a good practice of city administration and of
exploitation of strategic spatial planning
The Casimir effect in chiral media using path integral techniques
Full text linksponsorship: F. C. has been funded by Fondecyt Grant 1200022. The Centro de Estudios Cientificos (CECs) is funded by the Chilean Government through the Centers of Excellence Base Financing Program of ANID. The work of D. D. and T. O. was supported by KU Leuven IF project C14/21/087. P. P. was funded by Fondo Nacional de Desarrollo Cientifico y Tecnologico -Chile (Fondecyt Grant No. 3200725) and by Charles University Research Center (UNCE/SCI/013). (Fondecyt Grant|1200022, Chilean Government through the Centers of Excellence Base Financing Program of ANID, KU Leuven IF project|C14/21/087, Fondo Nacional de Desarrollo Cientifico y Tecnologico -Chile (Fondecyt Grant)|3200725, Charles University Research Center|UNCE/SCI/013)status: Publishe
Comments on the compatibility of thermodynamic equilibrium conditions with lattice propagators
No full textIn this paper the compatibility is analyzed of the non-perturbative equations of state of quarks and gluons arising from the lattice with some natural requirements for self-gravitating objects at equilibrium: the existence of an equation of state (namely, the possibility to define the pressure as a function of the energy density), the absence of superluminal propagation and Le Chatelier’s principle. It is discussed under which conditions it is possible to extract an equation of state (in the above sense) from the non-perturbative propagators arising from the fits of the latest lattice data. In the quark case, there is a small but non-vanishing range of temperatures in which it is not possible to define a single-valued functional relation between density and pressure. Interestingly enough, a small change of the parameters appearing in the fit of the lattice quark propagator (of around 10 %) could guarantee the fulfillment of all the three conditions (keeping alive, at the same time, the violation of positivity of the spectral representation, which is the expected signal of confinement). As far as gluons are concerned, the analysis shows very similar results. Whether or not the non-perturbative quark and gluon propagators satisfy these conditions can have a strong impact on the estimate of the maximal mass of quark stars
- …
