Search results for " fluid"
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SEAty_ living beyond the waterfront dynamics outcomes and risk of a new trend
2011
The growing number of projcts for floating structures or artificial islands in response to the problems of urhan congestion or environmental emergency requires a critical reflection on the prospectives and the risks implied in this new trend of urban water colonization. This paper intends to test the hypothesis thaht the value of a new and emerging issue of Architecrure can be recognized to this trend and, trhrough a comparison with a series of experiences, wants to bring to the attention of the debate a number of questions which, for exigency of synthesis, analyze in particular the morpholinguistic issues re1ated to the diffusion of this new architecture theme.
Dynamics of a harmonic oscillator coupled with a Glauber amplifier
2020
A system of a quantum harmonic oscillator bi-linearly coupled with a Glauber amplifier is analysed considering a time-dependent Hamiltonian model. The Hilbert space of this system may be exactly subdivided into invariant finite dimensional subspaces. Resorting to the Jordan-Schwinger map, the dynamical problem within each invariant subspace may be traced back to an effective SU(2) Hamiltonian model expressed in terms of spin variables only. This circumstance allows to analytically solve the dynamical problem and thus to study the exact dynamics of the oscillator-amplifier system under specific time-dependent scenarios. Peculiar physical effects are brought to light by comparing the dynamics…