Results 41 to 50 of about 170,615 (216)
Coupled Oscillators - Complex but Not Complicated Cardiovascular and Brain Interactions. [PDF]
, 2007 In coupled nonlinear oscillators approach, the framework that has been used for the studies of cardiovascular and brain oscillations. As background, it describes the human CVS and present results of time-frequency analysis using wavelet transforms of ...
Stefanovska, Aneta
core +4 more sources
Chaos Theory and Applications, 2023 It is known, that coherent chaotic communication systems are more vulnerable to noise in the transmission channel than conventional communications. Among the methods of noise impact reduction, such as extended symbol length and various digital filtering ...
Dmitriy Kvitko +6 more
doaj +1 more source
Chaotic behavior in parametric oscillations
Electrical Engineering in Japan, 1994 AbstractParametric oscillations which occur in a nonlinear two‐phase circuit with nonlinear reactors and capacitors are applied to many kinds of power devices. When the devices are operating under light load, the output voltage of these devices exhibits unstable oscillations, i.e., subharmonic oscillations, quasi‐periodic oscillations or chaotic ...
Tatsuta, Fujio, Tadokoro, Mutsuo
openaire +2 more sources
Advanced Science, EarlyView.Recent advances in metasurface‐enabled low‐observable technologies are reviewed from the perspective of cross‐scale material–structure synergy. Electromagnetic, thermal, optical, and acoustic stealth are highlighted together with dynamic tuning, programmable coding, data‐driven inverse design, artificial intelligence, multispectral compatibility, and ...
Shuhao Wang +5 more
wiley +1 more source
, 2013 In this paper, an incommensurate fractional order (FO) model has been proposed to generate ECG like waveforms. Earlier investigation of ECG like waveform generation is based on two identical Van-der Pol (VdP) family of oscillators, which are coupled by ...
Das, Saptarshi, Maharatna, Koushik
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Synchronization of Analog Neuron Circuits With Digital Memristive Synapses: An Hybrid Approach
Advanced Electronic Materials, EarlyView.An hybrid circuit mimicking neural units coupled using memristive synapses is introduced. The analog neurons provide flexibility and robustness, and the digital memristive coupling guarantees the full reconfigurability of the interconnection. The onset of a synchronized spiking behavior in two circuits mimicking the Izhikevich neuron is discussed from ...
Lamberto Carnazza +3 more
wiley +1 more source
Modified chaotic shift keying using indirect coupled chaotic synchronization for secure digital communication [PDF]
, 2010 In this paper, a modified chaotic shift keying method is proposed to transmit digital bits securely over a communication channel. The scheme is based upon encrypting the digital bits 0 and 1 into infinite levels by applying the keystream such that there
Ghassemlooy, Zabih +5 more
core
Journal of Low Frequency Noise, Vibration and Active Control, 2019 This paper elucidates a wrong trend in solving nonlinear oscillators. The homotopy perturbation method leads to a period solution to a nonlinear oscillator with high nonlinearity, while the Parker–Sochacki method results in a chaotic one and it is ...
Yue Wu
doaj +1 more source
Unmasking chaotic attributes in time series of living cell populations. [PDF]
PLoS ONE, 2010 BACKGROUND: Long-range oscillations of the mammalian cell proliferation rate are commonly observed both in vivo and in vitro. Such complicated dynamics are generally the result of a combination of stochastic events and deterministic regulation. Assessing
Michel Laurent +2 more
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Few‐Photon Fluorescence From Ultracold Bosons in an Optical Cavity
Contributions to Plasma Physics, EarlyView.ABSTRACT Within a cavity quantum electrodynamics framework, we analyse the fluorescent spectrum of ultracold bosons in resonant and second‐harmonic generation (SHG) regimes. Two settings are considered: (i) (few) bosons in an optical lattice and (ii) a trapped two‐component dilute Bose–Einstein condensate (2BEC) within the Bogoliubov scheme.
Megha Gopalakrishna +2 more
wiley +1 more source