Results 71 to 80 of about 26,339 (212)

Research of the Multi Parameter Edge of Chaos of Non- linear Simple Pendulum System

Jixie chuandong, 2015
By using Melnikov method,the necessary condition of the chaotic motion is established through the calculation of Melnikov function. Furthermore,the edge of chaos of the dynamics system is obtained.
He Shanghong, Xie Jin, Cheng Jiefeng, Cui Qingyu   +3 more
doaj  

Chaotic Dynamics and Subharmonic Bifurcation of Charged Dilation-AdS Black Hole in Extended Phase Space Subject to Harmonic Excitation

Physics
In this paper, the chaotic behavior and subharmonic bifurcation in a dynamical model for charged dilation-AdS black holes are investigated in extended phase space using analytical and numerical methods.
Qinrui Chen, Liangqiang Zhou, Fengxian An   +2 more
doaj   +1 more source

Logic of Determinative Analysis of Agglutinative and Inflectional Languages (part 1)

Polylinguality and Transcultural Practices, 2021
A clear understanding of the systemic differences between interacting languages is necessary to study the interaction of languages in the mind of a bilingual (multilingual) personality and improve the practice of teaching languages in a transcultural ...
Olga I. Valentinova, Mikhail A. Rybakov
doaj   +1 more source

Nonintegrability of an extensible conducting rod in a uniform magnetic field

, 2011
The equilibrium equations for an isotropic Kirchhoff rod are known to be completely integrable. It is also known that neither the effects of extensibility and shearability nor the effects of a uniform magnetic field individually break integrability. Here
van der Heijden, G. H. M., Yagasaki, K.
core   +1 more source

Evaluating multi-loop Feynman diagrams with infrared and threshold singularities numerically [PDF]

, 2007
We present a method to evaluate numerically Feynman diagrams directly from their Feynman parameters representation. We first disentangle overlapping singularities using sector decomposition. Threshold singularities are treated with an appropriate contour
A. Lazopoulos, Alejandro Daleo, C. Anastasiou, C. Anastasiou, C. Anastasiou, Charalampos Anastasiou, M. Muhlleitner, R. Harlander, Stefan Beerli, T. Binoth, U. Aglietti, Z. Nagy   +11 more
core   +2 more sources

Analytical Threshold for Chaos of Piecewise Duffing Oscillator with Time-Delayed Displacement Feedback

Shock and Vibration, 2022
In this paper, the bifurcation and chaotic motion of a piecewise Duffing oscillator with delayed displacement feedback under harmonic excitation are studied.
Zhang Ming-Xin, Wang Jun, Shen Yong-Jun, Zhang Jian-Chao   +3 more
doaj   +1 more source

Exponentially and non-exponentially small splitting of separatrices for the pendulum with a fast meromorphic perturbation

, 2011
In this paper we study the splitting of separatrices phenomenon which arises when one considers a Hamiltonian System of one degree of freedom with a fast periodic or quasiperiodic and meromorphic in the state variables perturbation.
Guardia, Marcel, Seara, Tere M.
core   +1 more source

Bifurcation and Chaos Prediction in Nonlinear Gear Systems

Shock and Vibration, 2014
The homoclinic bifurcation and transition to chaos in gear systems are studied both analytically and numerically. Applying Melnikov analytical method, the threshold values for the occurrence of chaotic motion are obtained.
Anooshirvan Farshidianfar, Amin Saghafi
doaj   +1 more source

Establishment of Permafrost Thermal Monitoring Sites in East Siberia

Land, 2020
Permafrost lies close to the surface of the day, therefore, it is able to quickly respond to modern climatic changes. Under these conditions, the goal of understanding the evolution of permafrost in the near future requires monitoring studies of the ...
Pavel Konstantinov, Mikhail Zhelezniak, Nikolay Basharin, Ivan Misailov, Varvara Andreeva   +4 more
doaj   +1 more source

Separatrix splitting at a Hamiltonian $0^2 i\omega$ bifurcation [PDF]

, 2014
We discuss the splitting of a separatrix in a generic unfolding of a degenerate equilibrium in a Hamiltonian system with two degrees of freedom. We assume that the unperturbed fixed point has two purely imaginary eigenvalues and a double zero one.
A Giorgilli, A Mielke, AR Champneys, AR Champneys, C Grotta Ragazzo, D Treschev, E Lombardi, G Iooss, G Iooss, G Iooss, G L Alfimov, H W Broer, I Baldomá, I Baldomá, I Baldomá, J Llibre, J Moser, Lev Lerman, LM Lerman, LM Lerman, M Haragus, O Koltsova, O Koltsova, OYu Koltsova, T Jézéquel, V G Gelfreich, V G Gelfreich, V G Gelfreich, V Gelfreich, V Gelfreich, V Gelfreich, Vassili Gelfreich, VG Gelfreich   +32 more
core   +1 more source