Results 81 to 90 of about 170,965 (333)

Bifurcations and Transitions to Chaos in An Inverted Pendulum

, 1998
We consider a parametrically forced pendulum with a vertically oscillating suspension point. It is well known that, as the amplitude of the vertical oscillation is increased, its inverted state (corresponding to the vertically-up configuration) undergoes
Hu, Bambi, Kim, Sang-Yoon
core   +1 more source

A Patient‐Specific 3D Printed Carotid Artery Model Integrating Vascular Structure, Flow, and Endothelium Responses

Advanced Healthcare Materials, EarlyView.
This study introduces the first miniaturized, patient‐specific carotid artery model created via 3D printing using GelMA with embedded vascular cells. Combining CFD, PIV, and flow perfusion, the model replicates anatomically dependent hemodynamics and cellular responses.
Jorge A. Catano, Louis Jun Ye Ong, Mingyang Yuan, Yunkun Qu, Jessica Benitez, Prasad KDV Yarlagadda, Yi‐Chin Toh, Zhiyong Li   +7 more
wiley   +1 more source

Dynamic Behavior and Bifurcation Analysis of a Modified Reduced Lorenz Model

Mathematics
This study introduces a newly modified Lorenz model capable of demonstrating bifurcation within a specified range of parameters. The model demonstrates various bifurcation behaviors, which are depicted as distinct structures in the diagram.
Mohammed O. Al-Kaff, Ghada AlNemer, Hamdy A. El-Metwally, Abd-Elalim A. Elsadany, Elmetwally M. Elabbasy   +4 more
doaj   +1 more source

Singular perturbation and bifurcation of diffuse transition layers in inhomogeneous media, part II

Networks and Heterogeneous Media, 2015
In this paper, we study the connection between the bifurcation of diffusetransition layers and that of the underlying limit interfacial problemin a degenerate spatially inhomogeneous medium.
Chaoqun Huang, Nung Kwan Yip
doaj   +1 more source

Effects of Long-Range Nonlinear Interactions in Double-Well Potentials [PDF]

, 2010
We consider the interplay of linear double-well-potential (DWP) structures and nonlinear longrange interactions of different types, motivated by applications to nonlinear optics and matter waves.
Akhmediev, Albiez, Albuch, Ananikian, Asad-uz-Zaman, B.A. Malomed, Baizakov, Bang, Birnbaum, Birnbaum, Briedis, C. Wang, Cambournac, Chu, Cuevas, D.J. Frantzeskakis, Deiglmayr, Dounas-Frazer, Giovanazzi, Gligorić, Griesmaier, Griesmaier, Griesmaier, Grillakis, Kapitula, Kevrekidis, Kirr, Kivshar, Królikowski, Köhler, Lahaye, Lahaye, Lang, Löw, Mahmud, Maimistov, Malomed, Marinescu, Mayteevarunyoo, Mazets, Morsch, Nath, Nath, Ospelkaus, Ostrovskaya, P.G. Kevrekidis, Paré, Pedri, Pethick, Pitaevskii, Raghavan, Raghavan, Rotschild, Sacchetti, Sage, Shchesnovich, Sinha, Smerzi, Snyder, Stuhler, Sulem, Theocharis, Tikhonenkov, Tikhonenkov, Vakhitov, Wang, Werner, Wyller, Xiong, Zibold, Ziń   +70 more
core   +3 more sources

Upconversion Nanoparticle‐Covalent Organic Framework Core–shell Particles as Therapeutic Microrobots Trackable With Optoacoustic Imaging

Advanced Materials, EarlyView.
Upconversion nanoparticle‐covalent organic framework core–shell particles provide enhanced contrast for optoacoustic imaging by leveraging the optical absorption of upconversion luminescence within the covalent organic framework matrix. Beyond their role as contrast agents, these particles enable customizable therapeutic agent loading and release, as ...
Dong Wook Kim, Paul Wrede, Andrés Rodríguez‐Camargo, Yi Chen, Nihal Olcay Dogan, Chaim Glück, Bettina V. Lotsch, Daniel Razansky, Metin Sitti   +8 more
wiley   +1 more source

Codimension-two bifurcation analysis and chaos synchronization of a quarter-car vehicle model

Advances in Mechanical Engineering, 2018
In this study, codimension-two bifurcation analysis was used in conjunction with a novel control method to mediate chaos in a semi-active suspension system based on a quarter-car model with excitation introduced by the road surface profile.
Shun-Chang Chang, Jui-Feng Hu
doaj   +1 more source

Non-autonomous bifurcation in impulsive systems

Electronic Journal of Qualitative Theory of Differential Equations, 2013
This is the first paper which considers non-autonomous bifurcations in impulsive differential equations. Impulsive generalizations of the non-autonomous pitchfork and transcritical bifurcation are discussed. We consider scalar differential equation with
Marat Akhmet, Ardak Kashkynbayev
doaj   +1 more source

Femtolitre Volume cryoEM Sample Preparation Using a Force‐Sensitive Microfluidic Cantilever

Advanced Materials Technologies, EarlyView.
Cryogenic electron microscopy enables structural imaging of biological molecules, but current methods lack targeted extraction of subcellular content for direct vitrification. This study introduces a force‐sensitive microfluidic cantilever pipette that aspirates and dispenses femtolitre volumes from individual cells onto electron microscopy grids.
Vijayendra Shastri, Joachim Pronk, Eleonoor Verlinden, Daniel Torres González, Edin Sarajlic, Paul Laeven, Wiel Evers, Patrick Frederix, Urs Staufer, Arjen J. Jakobi, Murali Krishna Ghatkesar, Andreas Engel   +11 more
wiley   +1 more source

Basin entropy as an indicator of a bifurcation in a time-delayed system. [PDF]

Chaos
The basin entropy is a measure that quantifies, in a system that has two or more attractors, the predictability of a final state, as a function of the initial conditions. While the basin entropy has been demonstrated on a variety of multistable dynamical
Juan P Tarigo, C. Stari, C. Masoller, Arturo C. Martí   +3 more
semanticscholar   +1 more source