Results 71 to 80 of about 1,024,755 (391)

Chaos and quantum chaos in cosmological models [PDF]

Chaos, Solitons & Fractals, 1995
Spatially homogeneous cosmological models reduce to Hamiltonian systems in a low dimensional Minkowskian space moving on the total energy shell $H=0$. Close to the initial singularity some models (those of Bianchi type VIII and IX) can be reduced further, in a certain approximation, to a non-compact triangular billiard on a 2-dimensional space of ...
openaire   +2 more sources

On distributional chaos in non-autonomous discrete systems

, 2018
This paper studies distributional chaos in non-autonomous discrete systems generated by given sequences of maps in metric spaces. In the case that the metric space is compact, it is shown that a system is Li-Yorke{\delta}-chaotic if and only if it is ...
Shao, Hua, Shi, Yuming, Zhu, Hao
core   +1 more source

Computational Modeling of Reticular Materials: The Past, the Present, and the Future

Advanced Materials, EarlyView.
Reticular materials are advanced materials with applications in emerging technologies. A thorough understanding of material properties at operating conditions is critical to accelerate the deployment at an industrial scale. Herein, the status of computational modeling of reticular materials is reviewed, supplemented with topical examples highlighting ...
Wim Temmerman, Ruben Goeminne, Kuber Singh Rawat, Veronique Van Speybroeck   +3 more
wiley   +1 more source

Theoretical foundation for jung's “Mandala Symbolism” based on discrete chaotic dynamics of interacting neurons

Discrete Dynamics in Nature and Society, 2000
Based on discrete chaotic dynamics algorithms different patterns in a form of mandalas have been generated. This fact gives us the possibility to make a link between mechanism of biochemical reaction dynamics undergoing in brain resulted to the brain ...
V. Gontar
doaj   +1 more source

Instant Chaos Is Chaos in Slow Motion

Journal of Mathematical Analysis and Applications, 1996
Instant chaos means that after the bifurcation of a stable equilibrium in its arbitrary small neighbourhood chaotic behaviour appears. The authors investigate this phenomenon by scaling the spatial and time variables. It is shown if the chaotic attractor is of limited amplitude then it is in slow motion (reaching the bifurcation value the return time ...
Labouriau, Isabel S., Dias, Ana Paula S.
openaire   +2 more sources

Topological Mixing with Ghost Rods [PDF]

, 2006
Topological chaos relies on the periodic motion of obstacles in a two-dimensional flow in order to form nontrivial braids. This motion generates exponential stretching of material lines, and hence efficient mixing. Boyland et al. [P. L. Boyland, H. Aref,
Finn, Matthew D., Gouillart, Emmanuelle, Thiffeault, Jean-Luc   +2 more
core   +2 more sources

Beyond Conventional Cooling: Advanced Micro/Nanostructures for Managing Extreme Heat Flux

Advanced Materials, EarlyView.
This review examines the design, application, and manufacturing of biomimetic or engineered micro/nanostructures for managing high heat‐flux in multi‐level electronics by enhancing conductive, convective, phase‐changing, and radiative heat transfer mechanisms, highlighting their potential for efficient, targeted thermal management, and future prospects.
Yuankun Zhang, Huajie Li, Yuhang Zhou, Jun Ma, Keng‐Te Lin, Han Lin, Chunsheng Guo, Baohua Jia   +7 more
wiley   +1 more source

Modulated Amplitude Waves and Defect Formation in the One-Dimensional Complex Ginzburg-Landau Equation [PDF]

, 2001
The transition from phase chaos to defect chaos in the complex Ginzburg-Landau equation (CGLE) is related to saddle-node bifurcations of modulated amplitude waves (MAWs).
Akamatsu, Alessandro Torcini, Bazhenov, Bot, Brusch, Burguete, Chang, Chang, Chaté, Cross, Egolf, Giacomelli, Janiaud, Kness, Liu, Lutz Brusch, Lücke, Manneville, Markus Bär, Martin van Hecke, Martı́n G Zimmermann, Montagne, Montagne, Mukolobwiez, Nozaki, Or-Guil, Ouyang, Ouyang, Rabaud, Sakaguchi, Shraiman, Torcini, Torcini, Vallette, van Hecke, van Hecke, van Saarloos, van Saarloos, Vince, Wierschem, Zhou   +40 more
core   +3 more sources

Spatiotemporal Reservoir Computing with a Reconfigurable Multifunctional Memristor Array

Advanced Materials, EarlyView.
This study presents a hardware physical reservoir computing system using a tri‐modal memristive crossbar array. Stochastic masking, bistable nonlinear activation, and analog readout enable fully in‐memory spatiotemporal processing. Demonstrations on cellular automata, Lorenz prediction, ADHD EEG classification, and chaotic KS modeling highlight its ...
Sungho Kim, Dong Hoon Shin, Wonho Choi, Sunwoo Cheong, Sung Keun Shim, Soo Hyung Lee, Janguk Han, Yoon Ho Jang, Kunhee Son, Néstor Ghenzi, Cheol Seong Hwang   +10 more
wiley   +1 more source

Correlation Between Degree Of Autonomic Nervous System Impairment And Quality Of Life Indices In Older Adults [PDF]

Geriatrics, Gerontology and Aging
INTRODUCTION: The increase in the world’s elderly population in recent decades calls for research on quality of life during the aging process. Heart rate variability (HRV) evaluates the modulation of the autonomic nervous system (ANS) and indicates the ...
Flávio Henrique Borin, Michele Lima Gregório, Micael Borin Martins, Moacir Fernandes de Godoy   +3 more
doaj   +1 more source