Results 81 to 90 of about 169,243 (353)

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

Resonance Analysis of Horizontal Nonlinear Vibrations of Roll Systems for Cold Rolling Mills under Double-Frequency Excitations

Mathematics, 2023
In this paper, the fractional order differential terms are introduced into a horizontal nonlinear dynamics model of a cold mill roller system. The resonance characteristics of the roller system under high-frequency and low-frequency excitation signals ...
Li Jiang, Tao Wang, Qing-Xue Huang
doaj   +1 more source

Generalized pitchfork bifurcation on a two-dimensional gaseous star with self-gravity and surface tension

, 2014
Travelling wave solutions of a two-dimensional gaseous star with self-gravity and surface tension are considered. The star rotates along a clockwise direction with a travelling speed.
S. Deng
semanticscholar   +1 more source

Manipulating Ferroelectric Topological Polar Structures with Twisted Light

Advanced Materials, EarlyView.
We demonstrate dynamic control of ferroelectric order in quasi‐2D CsBiNb2O7 using twisted ultraviolet light carrying orbital angular momentum. Our approach harnesses non‐resonant multiphoton absorption and induced strain to modulate topological of ferroelectric polarization textures.
Nimish P. Nazirkar, Viet Tran, Pascal Bassène, Atoumane Ndiaye, Julie Barringer, Jie Jiang, Wonsuk Cha, Ross Harder, Jian Shi, Moussa N'Gom, Edwin Fohtung   +10 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

A Highly Adaptable Hydrogen Bond Re‐Orientation (HyBRO) Strategy for Multiscale Vasculature Fabrication

Advanced Materials, EarlyView.
A novel hydrogen bond re‐orientation (HyBRO) strategy enables three‐dimensional (3D) printing of vascular microchannel networks with high accuracy. By switching sacrificial material interactions with nonsolvents, HyBRO prevents swelling and deformation, enabling accurate hierarchical channels spanning a tenfold size range.
Zhencheng Liao, Yu Liu, Chonghao Chen, Iek Man Lei, Lei Dong, Chunming Wang   +5 more
wiley   +1 more source

The influence of a pitchfork bifurcation of the critical points of a symmetric caldera potential energy surface on dynamical matching [PDF]

, 2021
Y. Geng, M. Katsanikas, M. Agaoglou, S. Wiggins   +3 more
semanticscholar   +1 more source

Sensitivity to initial conditions at bifurcations in one-dimensional nonlinear maps: rigorous nonextensive solutions

, 2002
Using the Feigenbaum renormalization group (RG) transformation we work out exactly the dynamics and the sensitivity to initial conditions for unimodal maps of nonlinearity $\zeta >1$ at both their pitchfork and tangent bifurcations.
, A Robledo, Anania G., Baldovin F., Beck C., Curado E. M. F., Curado E. M. F., Curado E. M. F., F Baldovin, Ott E., Robledo A., Schuster H. G., Tsallis C.   +12 more
core   +1 more source

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

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