SearcharxivSearch

arXiv subjects

P. Ferrante

Publications and source records attributed to P. Ferrante.

3 recordsLinked to original sources

A Phenomenological Environmental Traffic Model Part 1: Fuzzy Logic Validatation

In this first paper of a series of two we are going to show that, on the ground of few reasonable hypotheses, an equation linking the number of vehicle N($\tau_i$), that run from (i-1)-th to the i-th hour, to the ground-level hourly average measured values of an arbitrary pollutant concentration, $C(\tau_i,z=0)=C(\tau_i)$, can be established. The traffic environmental model so generated is validated via a fuzzy logig approach. In a second paper we will valitadeted and calibrated it via a manual counting of traffic fluxes and its provisional capability will be tessted

physics.soc-ph

Obtaining Traffic Information by Urban Air Quality Inspection

The level of air quality in urban centres is affected by emission of several pollutants, mainly coming from the vehicles flowing in their road networks. This is a well known phenomenon that influences the quality of life of people. Despite the deep concern of researchers and technicians, we are far from a total understanding of this phenomenon. On the contrary, the availability of reliable forecasting models would constitute an important tool for administrators in order of assessing suitable actions concerning the transportation policies, public as well private. Referring to the situation of the running fleet and the measured pollutant concentrations concerning the Italian town of Palermo, a data-deduced traffic model is here derived, its truthfulness being justified by a fuzzyfication of the phenomenon. A first validation of the model is supplied by utilising the emissions characteristics and the pollutant concentrations referring to a two years period of time. This work could represent a first attempt in defining a new approach to the problem of the pollution of the urban contexts, in order of providing administrators with a reliable and easier tool.

physics.flu-dyn

Quantum Computation in a radio single mode cavity: the dissipative Jaynes and Cummings Model

In this paper we have considered the interaction of a Jaynes and Cummings system with the electromagnetic field in its vacuum state and, solving the dynamical problem, we have analyzed the amount of entanglement induced in the bipartite system (atom + cavity mode) by the common electromagnetic reservoir. This has allowed us to quantitatively characterize the regime under which field-induced cooperative effects are not vanished by dissipation. Once the Decoherence Free Regime is reached, transient entanglement tends to become stationary and, therefore, usable for quantum gate implementation.

quant-ph