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Condensation phase transitions in ferrofluids

Zubarev, A. Yu; Iskakova, L. Yu - In: Physica A: Statistical Mechanics and its Applications 335 (2004) 3, pp. 325-338

particles in ferrofluids. In this scenario the phase transition begins with the formation of linear chainlike clusters which …

Persistent link: https://www.econbiz.de/10010872857

Chain-like structures in polydisperse ferrofluids

Zubarev, A. Yu; Iskakova, L. Yu - In: Physica A: Statistical Mechanics and its Applications 335 (2004) 3, pp. 314-324

An influence of polydispersity of ferrofluids on structure of internal chain-like aggregates is studied theoretically …

Persistent link: https://www.econbiz.de/10010873082

On the self-assembly of net-like nanostructures in ferrofluids

Elkady, Ashraf S.; Iskakova, Larisa; Zubarev, Andrey - In: Physica A: Statistical Mechanics and its Applications 428 (2015) C, pp. 257-265

structural transformations and condensation in ferrofluids (FF). In this work, we study internal structural transformations in FF … formation of linear chains, Y-forks and net-like nanostructures. The results show that, in agreement with experiments, when the … united in individual linear chains. But, when these parameters exceed some threshold magnitude, the main particles population …

Persistent link: https://www.econbiz.de/10011209649

Computational modelling of polymer electrolyte membrane (PEM) fuel cells: Challenges and opportunities

Djilali, N. - In: Energy 32 (2007) 4, pp. 269-280

Fuel cells are still undergoing intense development, and the combination of new and optimized materials, improved product development, novel architectures, more efficient transport processes, and design optimization and integration are expected to lead to major gains in performance, efficiency,...

Persistent link: https://www.econbiz.de/10010808103

Irreversibility and entropy production in transport phenomena, III—Principle of minimum integrated entropy production including nonlinear responses

Suzuki, Masuo - In: Physica A: Statistical Mechanics and its Applications 392 (2013) 2, pp. 314-325

A new variational principle of steady states is found by introducing an integrated type of energy dissipation (or entropy production) instead of instantaneous energy dissipation. This new principle is valid both in linear and nonlinear transport phenomena. Prigogine’s dream has now been...

Persistent link: https://www.econbiz.de/10011063871

Stochastic resonance and Brownian ratchets

Fendrik, A.J.; Romanelli, L.; Perazzo, R.P.J. - In: Physica A: Statistical Mechanics and its Applications 359 (2006) C, pp. 75-84

We discuss the connections between Brownian ratchets (BR) and stochastic resonance (SR). We consider a periodic potential energy landscape with no left–right symmetry that is driven by an external force which can be derived from a potential that is periodic both in time and space. We show that...

Persistent link: https://www.econbiz.de/10011064434

Analysis of transport phenomena with finite speed of perturbations propagation

Shnaid, Isaac - In: Physica A: Statistical Mechanics and its Applications 343 (2004) C, pp. 127-146

Known governing equations for transport phenomena predict infinite speed of perturbations propagation. From molecular point of view, infinite speed of perturbations propagation does not seem to be a reasonable physical assumption, because for instance in a gas, any perturbation propagates as a...

Persistent link: https://www.econbiz.de/10010590645

Periodic states, local effects and coexistence in the BML traffic jam model

Linesch, Nicholas J.; D’Souza, Raissa M. - In: Physica A: Statistical Mechanics and its Applications 387 (2008) 24, pp. 6170-6176

The Biham–Middleton–Levine (BML) model is simple lattice model of traffic flow, self-organization and jamming. Rather than a sharp phase transition between free-flow and jammed, it was recently shown that there is a region where stable intermediate states exist, with details dependent on the...

Persistent link: https://www.econbiz.de/10010874467

Time-dependent Onsager equations and perturbation propagation

Mostacci, Domiziano; Molinari, Vincenzo; Premuda, Margherita - In: Physica A: Statistical Mechanics and its Applications 316 (2002) 1, pp. 213-224

The diffusion of perturbations is investigated, beginning with Onsager-type equations for particle current and energy flow and conservation equations. This method takes into consideration the interplay of density and temperature, and the phenomena produced by this interplay—often neglected...

Persistent link: https://www.econbiz.de/10011057207

Irreversibility and entropy production in transport phenomena I

Suzuki, Masuo - In: Physica A: Statistical Mechanics and its Applications 390 (2011) 11, pp. 1904-1916

The linear response framework was established a half-century ago, but no persuasive direct derivation of entropy production has been given in this scheme. This long-term puzzle has now been solved in the present paper. The irreversible part of the entropy production in the present theory is...

Persistent link: https://www.econbiz.de/10011057301