Encontrados 17 documentos, a visualizar página 1 de 2
Chimera states in a neuronal network under the action of an electric field
Simo, Gael R.; Njougouo, Thierry; Aristides, R. P. [UNESP]; Louodop, Patrick; Tchitnga, Robert; Cerdeira, Hilda A. [UNESP]Made available in DSpace on 2022-04-28T17:21:57Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-06-08; ICTP-SAIFR; Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP); Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES); The phenomenon of the chimera state symbolizes the coexistence of coherent and incoherent sections of a given population. This phenomenon identified in several ...
Network of mobile systems: mutual influence of oscillators and agents
Nguefoue, Venceslas; Njougouo, Thierry; Louodop, Patrick; Fotsin, Hilaire; Cerdeira, Hilda A. [UNESP]Made available in DSpace on 2022-04-29T08:37:11Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-01-01; This work presents a network of mobile systems whose nodes are constituted by a moving agent with an internal state (an oscillator), which influences each other. The coupling topology of the agents and internal oscillators changes over time according to the interaction range (also called vision range or...
Coherent libration to coherent rotational dynamics via chimeralike states and c...
Mishra, Arindam; Saha, Suman; Hens, Chittaranjan; Roy, Prodyot K.; Bose, Mridul; Louodop, Patrick [UNESP]; Cerdeira, Hilda A. [UNESP]; Dana, Syamal K.Made available in DSpace on 2022-04-29T08:00:13Z (GMT). No. of bitstreams: 0 Previous issue date: 2017-01-04; An array of excitable Josephson junctions under a global mean-field interaction and a common periodic forcing shows the emergence of two important classes of coherent dynamics, librational and rotational motion, in the weaker and stronger coupling limits, respectively, with transitions to chimeralike st...
Traveling chimera patterns in a two-dimensional neuronal network
Simo, Gaël R.; Louodop, Patrick; Ghosh, Dibakar; Njougouo, Thierry; Tchitnga, Robert; Cerdeira, Hilda A. [UNESP]Made available in DSpace on 2022-04-29T08:29:44Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-09-06; We study the emergence of the traveling chimera state in a two-dimensional network of Hindmarsh-Rose burst neurons with the mutual presence of local and non-local couplings. We show that in the unique presence of the non-local chemical coupling modeled by a nonlinear function, the traveling chimera phen...
Multistable behavior above synchronization in a locally coupled Kuramoto model
Tilles, Paulo F. C. [UNESP]; Ferreira, Fernando F.; Cerdeira, Hilda A. [UNESP]Made available in DSpace on 2022-04-28T23:59:37Z (GMT). No. of bitstreams: 0 Previous issue date: 2011-06-14; A system of nearest neighbors Kuramoto-like coupled oscillators placed in a ring is studied above the critical synchronization transition. We find a richness of solutions when the coupling increases, which exists only within a solvability region (SR). We also find that the solutions possess different ch...
Dynamics of multilayer networks with amplification
Njougouo, Thierry; Camargo, Victor; Louodop, Patrick; Fagundes Ferreira, Fernando; Talla, Pierre K.; Cerdeira, Hilda A. [UNESP]Made available in DSpace on 2021-06-25T10:49:19Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-12-01; We study the dynamics of a multilayer network of chaotic oscillators subject to amplification. Previous studies have proven that multilayer networks present phenomena such as synchronization, cluster, and chimera states. Here, we consider a network with two layers of Rössler chaotic oscillators as well ...
Chimera states in a neuronal network under the action of an electric field
Simo, Gaël R.; Njougouo, Thierry; Aristides, R. P. [UNESP]; Louodop, Patrick; Tchitnga, Robert; Cerdeira, Hilda A. [UNESP]Made available in DSpace on 2021-06-25T11:02:26Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-06-01; The phenomenon of the chimera state symbolizes the coexistence of coherent and incoherent sections of a given population. This phenomenon identified in several physical and biological systems presents several variants, including the multichimera states and the traveling chimera state. Here, we numerical...
Heuristic Active Learning for the Prediction of Epileptic Seizures Using Single...
Marques, Joao M.C.; Cerdeira, Hilda A. [UNESP]; Tanaka, Edgar; Vitor, Conrado De; Gomez, PaulaMade available in DSpace on 2019-10-06T16:19:51Z (GMT). No. of bitstreams: 0 Previous issue date: 2019-01-21; Predicting epileptic seizure occurrence has long been a goal of the community surrounding it. Accurate prediction, however, is still elusive. This work presents a modified pipeline for the training of seizure prediction systems which aims to attenuate the effects of current data labeling strategies - an...
Extreme multistability in a Josephson-junction-based circuit
Louodop, Patrick [UNESP]; Tchitnga, Robert; Fagundes, Fernando F.; Kountchou, Michaux; Kamdoun Tamba, V.; Pando, Carlos L.; Cerdeira, Hilda A. [UNESP]Made available in DSpace on 2019-10-06T16:27:35Z (GMT). No. of bitstreams: 0 Previous issue date: 2019-04-18; We design and report an electrical circuit using a Josephson junction under periodic forcing that reveals extreme multistability. Its overall state equations surprisingly recall those of a well-known model of Josephson junction initially introduced in our circuit. The final circuit is characterized by t...
Heuristic Active Learning for the Prediction of Epileptic Seizures Using Single...
Marques, Joao M. C.; Cerdeira, Hilda A. [UNESP]; Tanaka, Edgar; Vitor, Conrado de; Gomez, Paula; Zheng, H.; Callejas, Z.; Griol, D.; Wang, H.; Hu, XMade available in DSpace on 2019-10-04T12:35:19Z (GMT). No. of bitstreams: 0 Previous issue date: 2018-01-01; Predicting epileptic seizure occurrence has long been a goal of the community surrounding it. Accurate prediction, however, is still elusive. This work presents a modified pipeline for the training of seizure prediction systems which aims to attenuate the effects of current data labeling strategies - an...