Results 51 to 60 of about 20,223 (242)

A blue sky catastrophe in double-diffusive convection

, 2004
A global bifurcation of the blue sky catastrophe type has been found in a small Prandtl number binary mixture contained in a laterally heated cavity. The system has been studied numerically applying the tools of bifurcation theory.
E. Knobloch, Esteban Meca, Isabel Mercader, J. Bhattacharjee, J. Guckenheimer, J. Turner, L. Shilnikov, Laureano Ramírez-Piscina, Oriol Batiste, Y. Kuznetsov   +9 more
core   +1 more source

Structural Eigenmodes of the Brain to Improve the Source Localization of EEG: Application to Epileptiform Activity

Advanced Science, EarlyView.
Geometry and connectivity are complementary structures, which have demonstrated their ability to represent the brain's functional activity. This study evaluates geometric and connectome eigenmodes as biologically informed constraints for EEG source localization.
Pok Him Siu, Philippa J. Karoly, Sina Mansour L., Artemio Soto‐Breceda, Levin Kuhlmann, Mark J. Cook, David B. Grayden   +6 more
wiley   +1 more source

Chaos and bifurcations in chaotic maps with parameter q: Numerical and analytical studies

Nonlinear Analysis, 2015
In this paper, a class of chaotic maps with parameter q are introduced and bifurcations and chaos in proposed maps are numerical and analytical studied.
Hao Zhang, Xing Yuan Wang, Xiao Hui Lin
doaj   +1 more source

Delay-induced multistability near a global bifurcation

, 2007
We study the effect of a time-delayed feedback within a generic model for a saddle-node bifurcation on a limit cycle. Without delay the only attractor below this global bifurcation is a stable node.
E. SCHÖLL, Guckenheimer J., Hu G., J. HIZANIDIS, R. AUST, Scholl E.   +5 more
core   +1 more source

DC‐magnetometry Analytical Tool Driven by Spin Ordering Phenomena for Sensing Chemical Interactions at the Surface of Nanomaterials

Advanced Science, EarlyView.
The adsorption of AsV on akaganeite nanorods was found to provide a magnetic signature. A change in the surface spin order gave rise to a second peak in the zero‐field cooled curve. AsIII adsorption does not provide any change in the magnetic behavior of the sorbent.
Marco Sanna Angotzi, Valentina Mameli, Alessandra Fantasia, Cesare Atzori, Giovanni Bertoni, Vincenzo Grillo, Giorgio Divitini, Dominika Zakutna, Jana Vejpravova, Martin Kalbac, Jan Plšek, Carla Cannas   +11 more
wiley   +1 more source

Biological experimental observations of an unnoticed chaos as simulated by the Hindmarsh-Rose model. [PDF]

PLoS ONE, 2013
An unnoticed chaotic firing pattern, lying between period-1 and period-2 firing patterns, has received little attention over the past 20 years since it was first simulated in the Hindmarsh-Rose (HR) model.
Huaguang Gu
doaj   +1 more source

A Memristor-Based Colpitts Oscillator Circuit

Mathematics, 2022
This paper investigates a simple memristor emulator consisting of a diode bridge and a capacitor. It exhibits pinched hysteresis loops, and what is more striking is the higher frequency, as it operates up to greater than 5 MHz.
Ling Zhou, Zhenzhen You, Xiaolin Liang, Xiaowu Li   +3 more
doaj   +1 more source

Connecting period-doubling cascades to chaos [PDF]

, 2010
The appearance of infinitely-many period-doubling cascades is one of the most prominent features observed in the study of maps depending on a parameter. They are associated with chaotic behavior, since bifurcation diagrams of a map with a parameter often
Sander, Evelyn, Yorke, James A.
core  

The quasi-periodic doubling cascade in the transition to weak turbulence [PDF]

, 2005
The quasi-periodic doubling cascade is shown to occur in the transition from regular to weakly turbulent behaviour in simulations of incompressible Navier-Stokes flow on a three-periodic domain.
Anishenko, Arnéodo, Boratav, Braaksma, Brachet, Broer, Broer, Feigenbaum, Franceschini, Kaneko, Kida, Kida, Kida, Kida, L. van Veen, Lust, Mayer-Kress, Schilder, Stagliano, Sánchez, Zhong   +20 more
core   +1 more source

Biolipid Film‐Fused Electrochemiluminescence for Multipurpose In Situ Bioassays

Advanced Science, EarlyView.
An ECL‐emissive, membrane‐interactive scaffold was fabricated, and facilely fused with natural and non‐native phospholipids into multifactorial mimicries of cytomembranes and vesicles for in vitro representative membrane‐process probing. Such a biointerface‐based, state‐sensitive ECL paradigm not only pinpointed proximal phenomena, including channeling
Jialiang Chen, Bin Li, Yingying Wang, Fulin Zhu, Wenxuan Yang, Xuanyu Fu, Tiantian Man, Qiuyue Wu, Kewei Ren, Shengyuan Deng   +9 more
wiley   +1 more source