Results 41 to 50 of about 278,275 (332)

Critical fluctuations, intermittent dynamics and Tsallis statistics [PDF]

, 2004
It is pointed out that the dynamics of the order parameter at a thermal critical point obeys the precepts of the nonextensive Tsallis statistics. We arrive at this conclusion by putting together two well-defined statistical-mechanical developments.
Alberto Robledo, Antoniou, Antoniou, Baldovin, Baldovin, Baldovin, Baldovin, Contoyiannis, Contoyiannis, Diakonos, Fisher, Fisher, Mayoral, Robledo, Robledo, Tsallis, Wilson, Wilson   +17 more
core   +2 more sources

Unraveling the Molecular Mechanisms of Glioma Recurrence: A Study Integrating Single‐Cell and Spatial Transcriptomics

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Glioma recurrence severely impacts patient prognosis, with current treatments showing limited efficacy. Traditional methods struggle to analyze recurrence mechanisms due to challenges in assessing tumor heterogeneity, spatial dynamics, and gene networks.
Lei Qiu, Yinjiao Fei, Jiaxuan Ding, Kexin Shi, Jinyan Luo, Yuchen Zhu, Xingjian Sun, Gefei Jiang, Yuandong Cao, Weilin Xu, Shu Zhou   +10 more
wiley   +1 more source

Universality in nonadiabatic behaviour of classical actions in nonlinear models with separatrix crossings

, 2007
We discuss dynamics of approximate adiabatic invariants in several nonlinear models being related to physics of Bose-Einstein condensates (BEC). We show that nonadiabatic dynamics in Feshbach resonance passage, nonlinear Landau-Zener (NLZ) tunnelling ...
A. A. Vasiliev, A. E. Leanhardt, A. Einstein, A. I. Neishtadt, A. I. Neishtadt, A. I. Neishtadt, A. Ishkhanyan, A. M. Dykhne, A. P. Itin, A. P. Itin, A. V. Timofeev, C. J. Pethick, F. London, G. M. Zaslavsky, I. M. Lifshitz, L. D. Landau, L. P. Pitaevskii, P. Ehrenfest, S. Watanabe, V. I. Arnold   +19 more
core   +1 more source

A Q‐Learning Algorithm to Solve the Two‐Player Zero‐Sum Game Problem for Nonlinear Systems

International Journal of Adaptive Control and Signal Processing, Volume 39, Issue 3, Page 566-581, March 2025.
A Q‐learning algorithm to solve the two‐player zero‐sum game problem for nonlinear systems. ABSTRACT This paper deals with the two‐player zero‐sum game problem, which is a bounded L2$$ {L}_2 $$‐gain robust control problem. Finding an analytical solution to the complex Hamilton‐Jacobi‐Issacs (HJI) equation is a challenging task.
Afreen Islam, Anthony Siming Chen, Guido Herrmann   +2 more
wiley   +1 more source

Exploring optical solitary wave solutions in the (2+1)-dimensional equation with in-depth of dynamical assessment

Heliyon
The current study explores the (2+1)-dimensional Chaffee-Infante equation, which holds significant importance in theoretical physics renowned reaction-diffusion equation with widespread applications across multiple disciplines, for example, ion-acoustic ...
Hira Ashaq, Sheikh Zain Majid, Muhammad Bilal Riaz, Muhammad Imran Asjad, Taseer Muhammad   +4 more
doaj   +1 more source

A variety of closed-form solutions, Painlevé analysis, and solitary wave profiles for modified KdV–Zakharov–Kuznetsov equation in (3+1)-dimensions

Results in Physics, 2022
The major goal of the article is to use the generalized exponential rational function method to seek abundant closed-form solutions and dynamics of solitary wave profiles to the (3+1)-dimensional modified KdV–Zakharov–Kuznetsov (MKdV–ZK) equation.
Kamsing Nonlaopon, Nikita Mann, Sachin Kumar, S. Rezaei, M.A. Abdou   +4 more
doaj   +1 more source

Locating Nonlinearity in Mechanical Systems: A Dynamic Network Perspective [PDF]

Though it is a crucial step for most identification methods in nonlinear structural dynamics, nonlinearity location is a sparsely addressed topic in the literature. In fact, locating nonlinearities in mechanical systems turns out to be a challenging problem when treated nonparametrically, that is, without fitting a model. The present contribution takes
Noël, Jean-Philippe, Schoukens, Maarten, Van den Hof, Paul   +2 more
openaire   +2 more sources

On the computation of the slow dynamics of nonlinear modes of mechanical systems [PDF]

Mechanical Systems and Signal Processing, 2014
A novel method for the numerical prediction of the slowly varying dynamics of nonlinear mechanical systems has been developed. The method is restricted to the regime of an isolated nonlinear mode and consists of a two-step procedure: In the first step, a multiharmonic analysis of the autonomous system is performed to directly compute the amplitude ...
Malte Krack, Lars Panning-von Scheidt, Jörg Wallaschek   +2 more
openaire   +2 more sources

A Robust Adaptive One‐Sample‐Ahead Preview Super‐Twisting Sliding Mode Controller

International Journal of Adaptive Control and Signal Processing, EarlyView.
Block Diagram of the Robust Adaptive One‐Sample‐Ahead Preview Super‐Twisting Sliding Mode Controller. ABSTRACT This article introduces a discrete‐time robust adaptive one‐sample‐ahead preview super‐twisting sliding mode controller. A stability analysis of the controller by Lyapunov criteria is developed to demonstrate its robustness in handling both ...
Guilherme Vieira Hollweg, Paulo Jefferson Dias de Oliveira Evald, Shivam Chaturvedi, Hilton Abilio Gründling, Rodrigo Varella Tambara, Wencong Su   +5 more
wiley   +1 more source

An insight into the solitonic features of the nonlinear generalized higher-order Schrödinger equation using the solver method

AIP Advances
For many nonlinear applications described by the dynamics of nonlinear Schrödinger equation with higher-order terms (HONLSE) such as nonlinear optics, space plasma physics molecular biology, astrophysics, quantum mechanics, superfluid, fluid mechanics ...
Hadil Alhazmi, Sanaa A. Bajri, E. K. El-Shewy, Mahmoud A. E. Abdelrahman   +3 more
doaj   +1 more source