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Makarov, Valeri A. ; Velarde, Manuel G. ; Chetverikov, Alexander ; Ebeling, Werner | American Physical Society | 2006-06We provide here a thorough analysis of the interplay between anharmonic lattice dynamics (with exponential repulsion between units) and electric conduction in a driven-dissipative electrically charged one-dimensional system. First, we delineate [...]texto impreso
Makarov, Valeri A. ; Del Río, Ezequiel ; Bedia, Manuel G. ; Velarde, Manuel G. ; Ebeling, Werner | World Academy of Science, Engineering & Technology | 2006We proposed the use of a Toda-Rayleigh ring as a central pattern generator (CPG) for controlling hexapodal robots. We show that the ring composed of six Toda-Rayleigh units coupled to the limb actuators reproduces the most common hexapodal gaits[...]texto impreso
Makarov, Valeri A. ; Nekorkin, Vladimir I. ; Velarde, Manuel G. | American Physical Society | 1998-11We consider a chain with many locally coupled bistable nonisochronous oscillators. We show that on the "background" of a disordered amplitude distribution either phase or frequency clusters form in the chain. Cluster location varies according to[...]texto impreso
Makarov, Valeri A. ; Villacorta-Atienza, José Antonio ; Salas, Luis ; Alba, Luis ; Velarde, Manuel G. | Spie-Int Soc Optical Engineering | 2011Animals for surviving have developed cognitive abilities allowing them an abstract representation of the environment. This Internal Representation (IR) could contain a huge amount of information concerning the evolution and interactions of the e[...]texto impreso
Animals for survival in complex, time-evolving environments can estimate in a "single parallel run" the fitness of different alternatives. Understanding of how the brain makes an effective compact internal representation (CIR) of such dynamic si[...]texto impreso
The evolution and collision of dark solitary waves (solitons) appearing in cigar-shaped Bose-Einstein condensates with repulsive atom-atom interaction are here considered using a Boussinesq-Korteweg-de Vries description. We provide theoretical p[...]texto impreso
Makarov, Valeri A. ; Río, E. del ; Ebeling, Werner ; Velarde, Manuel G. | American Physical Society | 2001-09A detailed theoretical and experimental analysis of the possible oscillatory regimes of the dissipative Toda-Rayleigh lattice system is provided. It is shown that the system has (N-1) oscillatory modes with different space-time scales and two ro[...]texto impreso
Makarov, Valeri A. ; Song, Yongli ; Velarde, Manuel G. ; Hübner, David ; Cruse, Holk | Springer Verlag | 2008-05We study how individual memory items are stored assuming that situations given in the environment can be represented in the form of synaptic-like couplings in recurrent neural networks. Previous numerical investigations have shown that specific [...]texto impreso
Makarov, Valeri A. ; Río, E. del ; Ebeling, Werner ; Velarde, Manuel G. | Spie-Int Soc Optical Engineering | 2003An experimental study has been carried out of a noisy dissipative-driven ring lattice of units coupled via Morse potentials. An electronic circuit mimicking the lattice dynamics and noise sources is used. We show that inclusion of long range att[...]texto impreso
We study here several simple models of the electron transfer (ET) in a one-dimensional nonlinear lattice between a donor and an acceptor and propose a new fast mechanism of electron surfing on soliton-like excitations along the lattice. The nonl[...]texto impreso
Makarov, Valeri A. ; Berg, Christian ; Villacorta-Atienza, José Antonio ; Velarde, Manuel G. ; Arena, Paolo ; Patane, Luca ; Termini, Pietro Savio ; Strauss, Roland | Informa Healthcare | 2010-12Proper orientation is one of the most important skills in the repertoire of an organism. Many different strategies are used in the animal kingdom to find resources like food, nesting sites, a comfortable environment, or mating partners. Optimizi[...]texto impreso
Makarov, Valeri A. ; Río, E. del ; Velarde, Manuel G. ; Ebeling, Werner | American Physical Society | 2003-05A circular lattice (ring) of N electronic elements with Toda-type exponential interactions and Rayleigh-type dissipation is used to illustrate wave formation, propagation, and switching between wave modes. A methodology is provided to help contr[...]texto impreso
Makarov, Valeri A. ; Nekorkin, Vladimir I. ; Velarde, Manuel G. | World Scientific Publishing | 2001-01A one-dimensional chain consisting of many locally coupled oscillatory units is considered when both diffusive (linear) and nonlinear interactions exist. The dynamics of units may also be altered by a weak white Gaussian noise. Two different col[...]texto impreso
Makarov, Valeri A. ; Castellanos, Nazareth P. ; Patane, Luca ; Velarde, Manuel G. | Spie-Int Soc Optical Engineering | 2007Common design of a robot searching for a target emitting sensory stimulus (e.g. odor or sound) makes use of the gradient of the sensory intensity. However, the intensity may decay rapidly with distance to the source, then weak signal-to-noise ra[...]texto impreso
Makarov, Valeri A. ; Castellanos, Nazareth P. ; Velarde, Manuel G. | World Academy of Science, Engineering & Technology | 2006In order to answer the general question: "What does a simple agent with a limited life-time require for constructing a useful representation of the environment?" we propose a robot platform including the simplest probabilistic sensory and motor [...]
