Results 131 to 140 of about 1,358 (245)

A Theoretical Model of Microscallop in Shear Thinning and Shear Thickening Fluids

, 2023
Abstract The article develops a Lagrangian based model for a two-link mechanism termed a microscallop, moving in a low Reynolds number environment in a shear thinning/thickening fluid. The modelling proceeds through the conventional Lagrangian construction for a two-link mechanism and then goes on to model the external fluid forces using ...
openaire   +1 more source

Dual‐Network Protein Hydrogels Promote Rapid Hemostasis and Immune‐Regulated Scarless Tissue Regeneration

Advanced Science, EarlyView.
A dual‐network protein hydrogel substantially improves hemostasis and scar‐free healing.The adaptive network maintains intimate tissue contact while providing strong wet adhesion, tunable mechanics, and controlled degradation. Concurrent ROS scavenging and M2 polarization suppress fibrotic pathways, preventing scar formation.
Xiaomei Li, Guorui Zhang, Xinyue Wang, Zhongyu Liu, Ling Yang, Yuhan Bao, Min Wei, Yonglin Chen, Yanfei Ma, Wenbo Sheng, Bo Yu, Bin Li   +11 more
wiley   +1 more source

Shear thickening fluids and gels as reinforcement in ballistic vest: an update review

Journal of Materials Research and Technology
Shear thickening fluids (STFs) and shear thickening gels (STGs) are smart materials that undergo a reversible, rapid transition from a low-viscosity state to a highly viscous or quasi-solid phase when subjected to shear rates above a critical threshold ...
Dayanne Santos Silva, Maria de Fátima Vieira Marques, Maurício Ferrapontoff Lemos, Sergio Neves Monteiro   +3 more
doaj   +1 more source

Multiscale Architecture and Mechanics of the Cell Nucleus: Implications for Disease, Bioengineering and Nanomedicine

Advanced Science, EarlyView.
Nuclear mechanical properties are inherently scale‐dependent, arising from a hierarchical architecture that spans DNA, chromatin, the nuclear envelope, and condensates. Experimental techniques and theoretical models are integrated into a cohesive multiscale framework linking nanoscale structural features to organelle‐level mechanical behavior.
Xinran Liu, Xin Chen, Qingyang Zhao, Weikang Tan, Lingrui Zhu, Kin Liao, Vincent Chan, Nicolae Goga, Winfred O. Larkotey, Yang Li, Yinghui Shi, Wenya Shu, Lin Wang, Weiqing Wang, Tian Jian Lu, Yulong Han   +15 more
wiley   +1 more source

Regularity of planar flows for shear-thickening fluids under perfect slip boundary conditions

Electronic Journal of Differential Equations, 2014
For evolutionary planar flows of shear-thickening fluids in bounded domains we prove the existence of a solution with the Holder continuous velocity gradients and pressure. The problem is equipped with perfect slip boundary conditions.
Jakub Tichy
doaj  

Steady flow of power-law fluids in a 1:3 planar sudden expansion

, 2013
The laminar flow of inelastic non-Newtonian fluids, obeying the power-law model, through a planar sudden expansion with a 1:3 expansion ratio was investigated numerically using a finite volume method. A broad range of power-law indices in the range 0.2 n
F. T. Pinho, M. A. Alves, Dhinakaran, S., Pinho, F.T., S. Dhinakaran, Oliveira, Monica, Alves, M.A., M. S. N. Oliveira   +7 more
core   +1 more source

Sticky Yet Slippery: Molecular Ordering Reconciles Bubble‐Surface Affinity With Ultralow Friction at the Nanoscale

Advanced Science, EarlyView.
By engineering the molecular order and thickness of PDMS layers, we reconcile the stickiness and slipperiness during bubble transport. AFM measurements and MD simulations further reveal how these nanoscale architectures tune hydrophobic interaction FHB and friction force f.
Shishuang Zhang, Jiajun Li, Huadong Tian, Zhoujie Wang, Chenyu Qiao, Jingyi Wang, Lei Xie, Hongbo Zeng   +7 more
wiley   +1 more source

Numerical analysis of shear thickening fluids for blast mitigation applications [PDF]

, 2011
Improvised Explosive Devices (IEDs) have evolved over the years to become one of the main causes of casualties and fatalities in recent conflicts. One area of research focuses on the improvement of blast attenuation using Shear Thickening Fluid (STF ...
Zhu, Weijie Kelvin
core  

Integrated Single‐Cell and Spatial Analysis Reveals a Metabolic‐Immune Axis Driving Aortic Dissection

Advanced Science, EarlyView.
Single‐cell and spatial profiling of 110 human thoracic aortic samples reveals a stromal–immune circuit driving aortic dissection. An elastin‐rich fibroblast subset is depleted with age and markedly reduced in disease, weakening aortic wall integrity.
Jing Tao, Huanjie Yang, Jiahui Yong, Xueting Chen, Qiang Zhao, Xueli Wu, Lei Yan, Li Pang, Fan Luo, Mengjun Yu, Shanshan Pan, Deyang Li, Rouxi Chen, Juan Wang, Zhensheng Dong, Fan Yang, Yue Wang, Yang Chen, Hongjian Zheng, Zhimin Yang, Zijie Wang, Karsten Kristiansen, Hui Peng, Xiaodong Fang, Juan Shen, Yining Yang   +25 more
wiley   +1 more source

Integrated Ultrasonic Platform for Bioelectronic Control through Biological Barriers Based on Metasurface

Advanced Science, EarlyView.
A metasurface‐enabled ultrasonic platform achieves precise multi‐focal control through biological barriers, real‐time physiology‐driven modulation, and simultaneous wireless power and data transmission. By unifying wavefront engineering, closed‐loop feedback, and acoustic communication, this work establishes key enabling technologies toward scalable ...
Chuanxin Zhang, Hanjie Xiao, Xue Jiang, Dean Ta   +3 more
wiley   +1 more source