Results 121 to 130 of about 169,243 (353)

Dynamic Bonds Reinforced Polyamide Elastomer for Biomedical Orthosis

Advanced Science, EarlyView.
A dynamic bonds (DBs) reinforced shape memory polyamide elastomer is developed using reactive extrusion. Dynamic covalent networks enhance interlayer adhesion in 4D‐printed objects by utilizing the combined effects of multiple DBs, reducing mechanical anisotropy and improving the mechanical and shape memory properties.
Zhen Li, Peiyao Yan, Hao Wang, Yuancheng Zhang, Junhua Kong, Wei Zhao, Xin Li, Xiaomeng Zhang, Zhe Cui, Peng Fu, Xinchang Pang, Minying Liu, Chaobin He   +12 more
wiley   +1 more source

Synthesis and Structure of Neopentyl Sodium: A Hydrocarbon‐Soluble Reagent for Controlled Sodiation of Non‐Activated Substrates

Angewandte Chemie, EarlyView.
Displaying strong controlled metalating power, hydrocarbon‐soluble sodium neopentyl can deprotonate challenging non‐activated arenes and alkenes, with sodiated intermediates successfully undergoing onward functionalisation reactions. By characterising key reaction intermediates, and running computational studies on models, insight has been gained on ...
David E. Anderson, Lorraine A. Malaspina, Simon Grabowsky, Eva Hevia   +3 more
wiley   +2 more sources

Asymptotic stability and bifurcations of a perturbed McMillan map

Journal of Inequalities and Applications
This paper presents various bifurcations of the McMillan map under perturbations of its coefficients, such as period-doubling, pitchfork, and hysteresis bifurcation. The associated existence regions are located.
Lili Qian, Qiuying Lu, Guifeng Deng
doaj   +1 more source

Nonlinear Phenomena of Fluid Flow in a Bioinspired Two-Dimensional Geometric Symmetric Channel with Sudden Expansion and Contraction

Mathematics
Inspired by the airway for phonation, fluid flow in an idealized model within a sudden expansion and contraction channel with a geometrically symmetric structure is investigated, and the nonlinear behaviors of the flow therein are explored via numerical ...
Liquan Yang, Mo Yang, Weijia Huang
doaj   +1 more source

Dynamic Analysis of an Impulsively Controlled Predator-Prey Model with Holling Type IV Functional Response

Discrete Dynamics in Nature and Society, 2012
The dynamic behavior of a predator-prey model with Holling type IV functional response is investigated with respect to impulsive control strategies. The model is analyzed to obtain the conditions under which the system is locally asymptotically stable ...
Yanzhen Wang, Min Zhao
doaj   +1 more source

Critical fluctuations of noisy period-doubling maps

, 2017
We extend the theory of quasipotentials in dynamical systems by calculating, within a broad class of period-doubling maps, an exact potential for the critical fluctuations of pitchfork bifurcations in the weak noise limit.
Hastings, Alan, Karimeddiny, Saba, Machta, Jonathan, Noble, Andrew E.   +3 more
core   +1 more source

Robust and Reversible Supramolecular Adhesive via Dynamic Covalent Bond Crosslinking‐Induced Assembly of Metal‐Coordinated Nanoparticles

Advanced Science, EarlyView.
A supramolecular polymer network is constructed through the assembly of metal‐coordinated nanoparticles induced by the crosslinking of dynamic covalent disulfide bond. The resulting supramolecular adhesive exhibited excellent adhesion performance, including strong adhesion strength, exceptional solvent resistance, and distinct reversible adhesion ...
Yanyan Guo, Mengran Zhang, Shuanggen Wu, Xunqiu Wang   +3 more
wiley   +1 more source

Functionalized Calix[4]Nanocones

Angewandte Chemie, EarlyView.
Herein we present a synthesis of a nanocone based on a calix[4]arene, which has additional functional groups at the peripheral rims. Due to its rigid structure in combination with alkoxy groups on both the upper and the lower rim, the nanocone was tested for the binding of alkaline ions in solution. It exhibits high selectivity for binding Na+ over Li+
Anika Haidisch, Frank Rominger, Michael Mastalerz   +2 more
wiley   +2 more sources

Stationary localized structures and the effect of the delayed feedback in the Brusselator model

, 2018
The Brusselator reaction-diffusion model is a paradigm for the understanding of dissipative structures in systems out of equilibrium. In the first part of this paper, we investigate the formation of stationary localized structures in the Brusselator ...
Averlant, Etienne, Frohoff-Hülsmann, Tobias, Gurevich, Svetlana V., Kostet, Bilal, Panajotov, Krassimir, Rojas, René, Sonnino, Giorgio, Tabbert, Felix, Tlidi, Mustapha   +8 more
core   +1 more source

Circulating Tumor Cells Shed Shearosome Extracellular Vesicles in Capillary Bifurcations That Activate Endothelial and Immune Cells

Advanced Science, EarlyView.
Using microfluidic models of capillary networks, this study discovered that fluid shear stresses on circulating tumor cells transiting through capillary‐sized bifurcations shed a novel class of shear‐dependent large extracellular vesicle, “shearosomes”, whose proteome comprises of over 3000 distinct proteins.
Angelos Vrynas, Salime Bazban‐Shotorbani, Sara Arfan, Karishma Satia, Brian Cunningham, Gauhar Sagindykova, Mymuna Ashna, Aoyu Zhang, Diana Visan, Aisher Chen, Teige Matthews‐Palmer, Mathew Carter, Fiona Blackhall, Kathryn L. Simpson, Caroline Dive, Paul Huang, Sam H. Au   +16 more
wiley   +1 more source