Results 101 to 110 of about 3,962 (268)

Symmetry Bifurcation and Chaos of the Poincaré Map, in a Three degree-of-freedom Vibro impact System

open access: yes工程科学与技术, 2008
:A three degree-of-freedom vibro impact system with symmetric constraining stops is considered. The Poincaré map of the system is established, and the symmetry of the Poincaré map is derived in detail. The theory of bifurcation of fixed points is applied
乐源, 谢建华
doaj  

Period doubling bifurcations in a two-box model of the Brusselator [PDF]

open access: yesApplications of Mathematics, 1983
Let us consider the system of ordinary differential equations (1) \(\dot x=v(x,\mu)\), where \(x=[x_ 1,y_ 1,x_ 2,y_ 2]\in {\mathbb{R}}^ 4\), \(\mu \in {\mathbb{R}}^ 1\) is a parameter and vector field \(v(\cdot,\mu)\) is invariant under the diffeomorphism g for every \(\mu\in {\mathbb{R}}\). The diffeomorphism g is defined by the following relation \(g(
openaire   +2 more sources

Occurrence of multiple period-doubling bifurcation route to chaos in periodically pulsed chaotic dynamical systems

open access: yes, 2003
We consider the effect of discrete-time signal or periodically pulsed forcing on chaotic dynamical systems and show that the systems can undergo novel multiple period-doubling bifurcations prior to the onset of chaos, followed by a rich variety of ...
Parthasarathy, S.   +2 more
core   +1 more source

System as a Unifying Process: An Onto‐Epistemic Notion of System

open access: yesSystems Research and Behavioral Science, EarlyView.
ABSTRACT This article proposes an onto‐epistemic notion of system as a relational process of unifying a multiplicity of actuals and abstractions into an actual unity, thereby encompassing concreteness and abstraction onto the same plane. This notion rejects the opposition between constructivism and realism within systems studies, the excessive focus on
Felipe Rodrigues Oliveira e Silva   +1 more
wiley   +1 more source

Asymptotic stability and bifurcations of a perturbed McMillan map

open access: yesJournal of Inequalities and Applications
This paper presents various bifurcations of the McMillan map under perturbations of its coefficients, such as period-doubling, pitchfork, and hysteresis bifurcation. The associated existence regions are located.
Lili Qian, Qiuying Lu, Guifeng Deng
doaj   +1 more source

Dynamic stabilization of a microwave-driven Josephson tunnel junction against a period-doubling bifurcation [PDF]

open access: yes, 1989
The authors present theoretical and experimental results on the effect of periodic perturbations on microwave-driven Josephson tunnel junctions close to a period-doubling bifurcation.
Hansen, Jørn Bindslev   +3 more
core   +1 more source

Trace Element Contamination in Top Predatory Elasmobranchs From the Southern Black Sea: Implications for Ecosystem Health and Risk Assessment

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Environmental pollution resulting from the rapid increase in human population, urbanization, intensive use of chemicals in agriculture, and industrial development has reached a level that threatens natural life today. Trace elements are one of the most important factors causing significant levels of pollution in the environment and are added ...
Levent Bat   +3 more
wiley   +1 more source

‘Humans Are Omnipotent and Beyond Their Destiny!’ Late Soviet Perspective on Girls’ Upbringing and the Female Self

open access: yesGender &History, EarlyView.
ABSTRACT The article examines post‐Stalinist Soviet expertise on girls’ education and upbringing, analysing texts for and about female adolescents created by specialists in pedagogical sciences, psychology, sociology, medicine as well as children's writers and journalists from different parts of the Union, including national republics. The text focuses
Ella Rossman
wiley   +1 more source

Complex dynamics of a three species food-chain model with Holling type IV functional response

open access: yesNonlinear Analysis, 2011
In this paper, dynamical complexities of a three species food chain model with Holling type IV predator response is investigated analytically as well as numerically. The local and global stability analysis is carried out. The persistence criterion of the
Ranjit Kumar Upadhyay   +1 more
doaj  

A New Feigenbaum-Like Chaotic 3D System

open access: yesDiscrete Dynamics in Nature and Society, 2014
Based on Sprott N system, a new three-dimensional autonomous system is reported. It is demonstrated to be chaotic in the sense of having positive largest Lyapunov exponent and fractional dimension. To further understand the complex dynamics of the system,
Huitao Zhao, Yiping Lin, Yunxian Dai
doaj   +1 more source

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