Results 41 to 50 of about 1,813,184 (347)

Resynchronization of delayed neural networks

open access: yesDiscrete & Continuous Dynamical Systems - A, 2001
The subject of the paper is a model of a network of identical neurons of the following form \[ \dot u_j(t) = - \mu u_j(t) + \sum_{l=1}^{n} J_{jl} f(u_l(t-\tau)), \quad j=1,\dots,n, \] where \(\mu\) and \(\tau\) are nonnegative constants, \(f:\mathbb{R}\to\mathbb{R}\) is bounded and \(C^1\)-smooth with \(f(0)=0\), \(f'(x)>0\) for all \(x\in\mathbb{R}\).
openaire   +1 more source

Stability and Hopf Bifurcation of Fractional-Order Quaternary Numerical Three-Neuron Neural Networks with Different Types of Delays

open access: yesAxioms
In this paper, the stability and Hopf bifurcation of fractional-order quaternion-valued neural networks (FOQVNNs) with various types of time delays are studied.
Qiankun Wang   +3 more
doaj   +1 more source

Robust synchronization of a class of coupled delayed networks with multiple stochastic disturbances: The continuous-time case [PDF]

open access: yes, 2011
In this paper, the robust synchronization problem is investigated for a new class of continuous-time complex networks that involve parameter uncertainties, time-varying delays, constant and delayed couplings, as well as multiple stochastic disturbances.
Chen J. L.   +12 more
core   +1 more source

Phase models and clustering in networks of oscillators with delayed coupling [PDF]

open access: yes, 2016
We consider a general model for a network of oscillators with time delayed, circulant coupling. We use the theory of weakly coupled oscillators to reduce the system of delay differential equations to a phase model where the time delay enters as a phase ...
Campbell, Sue Ann, Wang, Zhen
core   +2 more sources

Moving Object Detection Using Delayed - Cellular Neural Network [PDF]

open access: yesDoğuş Üniversitesi Dergisi, 2000
Bu makalede, 2 boyutlu goruntuler geciktirilmis hucresel yapay sinir agi (GHYSA) ile incelenmistir. GHYSA ilk defa 1993 yilinda tanitilmistir. Gecikme miktari belirli bir degerden kucuk secilmesi halinde, asimptotik kararlilik saglanir. Ozellikle son yillarda, goruntunun hareketli olan kismi diger bolgelere gore daha onemli olabilmektedir.
UÇAN, Osman Nuri, AĞIRMAN, Lokman
openaire   +3 more sources

Projective Lag Synchronization of Delayed Neural Networks Using Intermittent Linear State Feedback

open access: yesAbstract and Applied Analysis, 2013
The problem of projective lag synchronization of coupled neural networks with time delay is investigated. By means of the Lyapunov stability theory, an intermittent controller is designed for achieving projective lag synchronization between two delayed ...
Junjian Huang   +4 more
doaj   +1 more source

Organ‐specific redox imbalances in spinal muscular atrophy mice are partially rescued by SMN antisense oligonucleotides

open access: yesFEBS Letters, EarlyView.
We identified a systemic, progressive loss of protein S‐glutathionylation—detected by nonreducing western blotting—alongside dysregulation of glutathione‐cycle enzymes in both neuronal and peripheral tissues of Taiwanese SMA mice. These alterations were partially rescued by SMN antisense oligonucleotide therapy, revealing persistent redox imbalance as ...
Sofia Vrettou, Brunhilde Wirth
wiley   +1 more source

Dynamical Analysis of DTNN with Impulsive Effect

open access: yesDiscrete Dynamics in Nature and Society, 2009
We present dynamical analysis of discrete-time delayed neural networks with impulsive effect. Under impulsive effect, we derive some new criteria for the invariance and attractivity of discrete-time neural networks by using decomposition approach and ...
Chao Chen   +3 more
doaj   +1 more source

Desynchronization of Large Scale Delayed Neural Networks [PDF]

open access: yes, 2000
We consider a ring of identical neurons with delayed nearest neighborhood inhibitory interaction. Under general conditions, such a network has a slowly oscillatory synchronous periodic solution which is completely characterized by a scalar delay di ...
Chen, Yuming   +2 more
core   +1 more source

Phoneme Recognition Using Time-Delay Neural Networks

open access: yesIEEE Transactions on Acoustics, Speech, and Signal Processing, 1989
The authors present a time-delay neural network (TDNN) approach to phoneme recognition which is characterized by two important properties: (1) using a three-layer arrangement of simple computing units, a hierarchy can be constructed that allows for the formation of arbitrary nonlinear decision surfaces, which the TDNN learns automatically using error ...
Waibel, A.   +4 more
openaire   +1 more source

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