Results 61 to 70 of about 7,689 (210)
On Coupled Delayed Van der Pol-Duffing Oscillators [PDF]
Journal of Applied Nonlinear Dynamics, 2020 We investigate the dynamics of a delay differential coupled Duffing-Van der Pol oscillator equation. Using the Lindstedt's method, we derive the in-phase mode solutions and then obtain the slow flow equations governing the stability of the in-phase mode by employing the two variable perturbation method.
Pandey, Ankan +3 more
openaire +2 more sources
C∞‐Structures for Liénard Equations and New Exact Solutions to a Class of Klein–Gordon Equations
Mathematical Methods in the Applied Sciences, Volume 49, Issue 4, Page 2795-2822, 15 March 2026.ABSTRACT Liénard equations are analyzed using the recent theory of 𝒞∞‐structures. For each Liénard equation, a 𝒞∞‐structure is determined by using a Lie point symmetry and a 𝒞∞‐symmetry. Based on this approach, a novel method for integrating these equations is proposed, which consists in solving sequentially two completely integrable Pfaffian equations.
Beltrán de la Flor +2 more
wiley +1 more source
Quantum dynamics of mesoscopic driven Duffing oscillators [PDF]
EPL (Europhysics Letters), 2010 4 pages, 4 figures; revised version accepted for publication in ...
Guo, Lingzhen +2 more
openaire +2 more sources
2FSK Communication System Demodulation Algorithm for Novel Acoustically Excited SLF Antennas
水下无人系统学报There exist some problems for acoustically excited super low frequency(SLF) antennas, such as low transmission power and low received signal-to-noise ratio. In addition, it is difficult to design a narrow-band filter in traditional binary frequency-shift
Xiayu ZHANG +3 more
doaj +1 more source
Two‐Dimensional Materials as a Multiproperty Sensing Platform
Advanced Functional Materials, Volume 36, Issue 14, 16 February 2026.Various sensing modalities enabled and/or enhanced by two‐dimensional (2D) materials are reviewed. The domains considered for sensing include: 1) optoelectronics, 2) quantum defects, 3) scanning probe microscopy, 4) nanomechanics, and 5) bio‐ and chemosensing.
Dipankar Jana +11 more
wiley +1 more source
Unusual Nonpolynomial Van der Pol Oscillator Equations With Exact Harmonic and Isochronous Solutions
International Journal of Analysis and Applications, 2022 We do not know Van der Pol-type equations with nonlinear restoring force having explicitly an exact periodic solution. We present, for the first time, nonpolynomial Van der Pol oscillator equations that do not satisfy the classical existence theorems. We
Kolawolé Kêgnidé Damien Adjaï +3 more
doaj +1 more source
Mathematical Methods in the Applied Sciences, Volume 49, Issue 3, Page 1943-1956, February 2026.ABSTRACT The existence of one or two strictly positive solutions of Neumann boundary value problems is studied in this paper where the nonlinearities are L1$$ {L}^1 $$‐Carathéodory functions, so they are not necessarily continuous. Additional weaker and better conditions than those used in previous results are posted on the nonlinearities to obtain ...
Kunquan Lan, Gustavo Cicchini Santos
wiley +1 more source
Small Methods, Volume 10, Issue 2, 22 January 2026.Reconstruction of low signal‐to‐noise ratio signals enables improved information recovery in piezoresponse force microscopy data, even in data with a substantial amount of noise. Incorporating signal processing errors to detect and Bayesian matrix completion methods to reconstruct low SNR signals substantially alters the apparent PFM switching ...
Kerisha N. Williams +5 more
wiley +1 more source
Piezoelectric Ceramic Resonator for Physical Reservoir Computing
Electronics Letters, Volume 62, Issue 1, January/December 2026.This work presents a feedback‐free, maskless physical reservoir computing based on a Pb(Zr,Ti)O3 piezoelectric ceramic disc resonator that harnesses intrinsic Duffing nonlinearity and underdamped transients. A nonlinear equivalent‐circuit model quantifies the mechanism, and the computational capability is validated via end‐to‐end simulations ...
Senhao Wang, Xiaosheng Wu
wiley +1 more source
Confusion threshold study of the Duffing oscillator with a nonlinear fractional damping term
Journal of Low Frequency Noise, Vibration and Active Control, 2021 In this study, the critical conditions for generating chaos in a Duffing oscillator with nonlinear damping and fractional derivative are investigated. The Melnikov function of the Duffing oscillator is established based on Melnikov theory.
Wang Mei-Qi +5 more
doaj +1 more source