S. A. Abdulack

State University of Ponta Grossa | UEPG · Departamento de Física

Em grande parte das aplicações da Termodinâmica nas Engenharias são empregadas as equações das taxas de transferência de calor, de modo que a modelagem matemática e as simulações tomam lugar na construção de importantes dispositivos e equipamentos. O presente artigo traz a modelagem e solução da aplicação de camadas de isolante térmico em sistemas...

In this work we investigate how regular islands localized in a mixed phase-space of generic area-preserving Hamiltonian systems are affected by a small amount of dissipation. Mainly we search for a universality (hierarchy) in the convergence of higher-order resonances and their periods when dissipation increases. One very simple scenario is already...

We study the effects of a finite kicked environment (bath) composed of N harmonic oscillators on the particle transport in a weakly dissipative quasisymmetric potential system. The small spatial asymmetry is responsible for the appearance of directed particle transport without a net bias, known as the ratchet transport. The whole dynamics is govern...

In this work we derive a generalized map for a system coupled to a kicked environment composed of a finite number N of uncoupled harmonic oscillators. Dissipation is introduced via the interaction between system and environment which is switched on and off simultaneously (kicks) at regular time intervals. It is shown that kicked environments natura...

We analyze the problem first discussed by S. Strogatz, which deals with the loving relationship between two people through a dynamical system. A discussion of the concepts and basic tools of Nonlinear Dynamics is done and we focuse on the asymptotic behavior for parameters values that can be interpreted as "opposite feelings" and "opposite personal...