Results 101 to 110 of about 25,515 (266)
The Twisting Bifurcations of Double Homoclinic Loops with Resonant Eigenvalues
Abstract and Applied Analysis, 2013 The twisting bifurcations of double homoclinic loops with resonant eigenvalues are investigated in four-dimensional systems. The coexistence or noncoexistence of large 1-homoclinic orbit and large 1-periodic orbit near double homoclinic loops is given ...
Xiaodong Li +3 more
doaj +1 more source
Elastic‐Wave Propagation in Chiral Metamaterials: A Couple‐Stress Theory Perspective
Advanced Engineering Materials, Volume 27, Issue 9, May 2025.The intrinsic chirality of chiral metamaterials renders an effective medium based on the classical continuum theory ineffective for predicting their acoustic activity. This limitation is addressed in the present study by employing augmented asymptotic homogenization to derive a couple‐stress‐based effective medium, enabling accurate predictions in the ...
Shahin Eskandari +5 more
wiley +1 more source
Analysis of stationary points and their bifurcations in the ABC flow
, 2018 Analytical expressions for coordinates of stationary points and conditions for their existence in the ABC flow are received. The type of the stationary points is shown analytically to be saddle-node.
Didov, A. A., Uleysky, M. Yu.
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Homoclinic Saddle-Node Bifurcations and Subshifts in a Three-Dimensional Flow [PDF]
Archive for Rational Mechanics and Analysis, 1998 The authors study differential equations \(X_\varepsilon\) on \({\mathbb{R}}^3\) that, for \(\varepsilon = 0\), possess a line \(\Gamma\) of equilibria connected by a manifold of homoclinic loops. Such a study was started in \textit{A. Doelman} and \textit{P. Holmes} [Philos. Trans. R. Soc. Lond., Ser. A 354, 845-893 (1996; Zbl 0881.58044)] and \textit{
Hek, G., Doelman, A., Holmes, P.
openaire +7 more sources
Ultralow‐Dimensionality Reduction for Identifying Critical Transitions by Spatial‐Temporal PCA
Advanced Science, Volume 12, Issue 20, May 29, 2025.The proposed spatial‐temporal principal component analysis (stPCA) method analytically reduces high‐dimensional time‐series data to a single latent variable by transforming spatial information into temporal dynamics. By preserving the temporal properties of the original data, stPCA effectively identifies critical transitions and tipping points.
Pei Chen +6 more
wiley +1 more source
Dynamics of a modified Leslie-Gower predator-prey model with double Allee effects
Mathematical Biosciences and EngineeringIn this paper, we investigate the dynamic behavior of a modified Leslie-Gower predator-prey model with the Allee effect on both prey and predator. It is shown that the model has at most two positive equilibria, where one is always a hyperbolic saddle and
Mengyun Xing, Mengxin He, Zhong Li
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Common sports‐related nerve injuries seen by the electrodiagnostic medical consultant
Muscle &Nerve, Volume 71, Issue 5, Page 715-731, May 2025.Abstract The high physiologic demands of sports create dynamic stress on joints, soft tissues, and nerves which may lead to injuries in the athlete. Electrodiagnostic (EDx) assessment is essential to identify the correct diagnosis, localization, and prognosis, to guide management of sports‐related neuropathies.
Jordan I. Farag +2 more
wiley +1 more source
Exponential peak and scaling of work fluctuations in modulated systems
, 2007 We extend the stationary-state work fluctuation theorem to periodically modulated nonlinear systems. Such systems often have coexisting stable periodic states.
E. G. D. Cohen +8 more
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Dynamics of a delay Schistosomiasis model in snail infections
Mathematical Biosciences and Engineering, 2011 In this paper we modify and study a system of delay differential equations model proposed by Nåsell and Hirsch (1973) for the transmission dynamics of schistosomiasis. The modified stochastic version of MacDonald’s model takes into account the time delay
Chunhua Shan, Hongjun Gao, Huaiping Zhu
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Terrain descriptors for landscape synthesis, analysis and simulation
Computer Graphics Forum, Volume 44, Issue 2, May 2025.Abstract Synthetic landscape generation is an active research area within Computer Graphics. Algorithms for terrain synthesis and ecosystem simulations often rely on simple descriptors such as slope, light accessibility, and drainage area. Typically, the results are assessed from a perceptual standpoint, focusing primarily on visual plausibility. Other
O. Argudo +3 more
wiley +1 more source