Results 31 to 40 of about 308 (136)
Research on ferromagnetic resonance type recognition of support vector machine based on chaos theory
AIP AdvancesThis study presents an innovative method for identifying ferroresonant overvoltage types in power systems by integrating chaos theory with support vector machine classification.
Yuliang Zhang +4 more
doaj +1 more source
Melnikov's method and Arnold diffusion for perturbations of integrable Hamiltonian systems [PDF]
, 1982 We start with an unperturbed system containing a homoclinic orbit and at least two families of periodic orbits associated with action angle coordinates.
Holmes, Philip J., Marsden, Jerrold E.
core +1 more source
The Political Economy of Attention: Media Salience, Voter Cognition, and Electoral Accountability
Journal of Economic Surveys, EarlyView.ABSTRACT We review conceptual and empirical contributions to the political economy of attention, with a focus on how attention allocation shapes political behavior and electoral accountability. The review distinguishes between endogenous (goal‐directed) and exogenous (stimulus‐driven) attention and examines how these concepts are incorporated into ...
Patrick Balles +2 more
wiley +1 more source
Chaos analysis of ship rolling motion in stochastic beam seas [PDF]
, 2017 In this paper, the chaotic motion of ship roll in stochastic beam seas, which is regarded as a bounded noise is investigated in detail. The stochastic Melnikov approach is applied to the model and the criterion for the chaos in the mean-square sense is ...
Kangkang Wang, Shenghong Li
core +3 more sources
Digital Roots or Digital Routes? Broadband Expansion and the Rural‐Urban Migration in China
Population and Development Review, EarlyView.Abstract This study investigates how broadband internet affects rural–urban migration in China using the Universal Broadband and Telecommunication Services pilot program launched in 2015 as a quasi‐experimental setting. Analyzing China Household Finance Survey data (2013–2021) with difference‐in‐differences estimation, we find that improved internet ...
Shuang Ma, Ren Mu
wiley +1 more source
Analytical methods to predict the surf-riding threshold and the wave-blocking threshold [PDF]
, 2019 For the safe design and operation of high-speed craft it is important to predict their behaviour in waves. There still exists a concern, however, in the framework of the International Maritime Organization (IMO) with regards to the stability criteria. In
Maki, Atsuo +3 more
core +4 more sources
Open‐Source Tools for Building Data‐Driven, Sovereignty‐Permitting Web Apps
Journal of the Royal Society of New Zealand, Volume 56, Issue 2, April 2026.Public domain or access‐controlled web apps provide a simple and relatively cheap way to increase the accessibility of information within data resources. Modern data environments, especially those subject to Māori Data Sovereignty (MDSov) constraints, face technical challenges balancing data security and privacy with accessibility and collective ...
Tom Elliott, Andrew Sporle
wiley +1 more source
Melnikov method for perturbed completely integrable systems
Bulletin of the Belgian Mathematical Society - Simon StevinWe consider a completely integrable system of differential equations in arbitrary dimensions whose phase space contains an open set foliated by periodic orbits. This research analyzes the persistence and stability of the periodic orbits under a nonlinear periodic perturbation. For this purpose, we use the Melnikov method and Floquet theory to establish
Crespo, Francisco +2 more
openaire +3 more sources
Journal of Geophysical Research: Planets, Volume 131, Issue 4, April 2026.Abstract Xenon (Xe) is a heavy noble gas with intriguing chemical properties, such as having several stable isotopes and the ability to form compounds under extreme conditions. Despite the predictions based on cosmochemical models that suggest xenon should be relatively abundant in planetary reservoirs, empirical data indicate a significant depletion ...
Avinash Kumar Both +2 more
wiley +1 more source
Multiple front and pulse solutions in spatially periodic systems
Journal of the London Mathematical Society, Volume 113, Issue 4, April 2026.Abstract In this paper, we develop a comprehensive mathematical toolbox for the construction and spectral stability analysis of stationary multiple front and pulse solutions to general semilinear evolution problems on the real line with spatially periodic coefficients.
Lukas Bengel, Björn de Rijk
wiley +1 more source