Results 111 to 120 of about 178,428 (365)

Dynamic Bonds Reinforced Polyamide Elastomer for Biomedical Orthosis

open access: yesAdvanced 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   +12 more
wiley   +1 more source

Numerical analysis of fold-pitchfork bifurcation with symmetry and its application in the pipe flow

open access: yesIranian Journal of Physics Research, 2018
In this paper, we study the numerical analysis of fold-pitchfork bifurcation with Z2 symmetry. For this purpose, explicit formulas for the critical coefficients of this bifurcation are obtained and non-degeneracy conditions of this bifurcation are ...
R Mazrooei-Sebdani, Z Eskandari
doaj  

Osmoxylon‐like fossils from early Eocene South America: West Gondwana–Malesia connections in Araliaceae

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Araliaceae comprise a moderately diverse, predominantly tropical angiosperm family with a limited fossil record. Gondwanan history of Araliaceae is hypothesized in the literature, but no fossils have previously been reported from the former supercontinent.
Peter Wilf
wiley   +1 more source

Bifurcation analysis of a normal form for excitable media: Are stable dynamical alternans on a ring possible?

open access: yes, 2008
We present a bifurcation analysis of a normal form for travelling waves in one-dimensional excitable media. The normal form which has been recently proposed on phenomenological grounds is given in form of a differential delay equation.
Georg A. Gottwald   +5 more
core   +1 more source

A Novel International Endoscopic Sphenoid Surgery Classification (IESSC): A Delphi Consensus

open access: yesInternational Forum of Allergy &Rhinology, EarlyView.
ABSTRACT Background Advancements in endoscopic sinus and skull base surgery created a need for standardized terminology to describe sphenoid sinus surgery. Although classification systems exist for other sinuses, one for endoscopic sphenoid sinus surgery is lacking.
Hussain Albaharna   +20 more
wiley   +1 more source

Nonlinear Magnetoconvection in a Sparsely Packed Porous Medium

open access: yesInternational Journal of Geophysics, 2011
Linear and weakly nonlinear properties of magnetoconvection in a sparsely packed porous medium are investigated. We have obtained the values of Takens-Bogdanov bifurcation points and codimension two bifurcation points by plotting graphs of neutral curves
A. Benerji Babu   +2 more
doaj   +1 more source

A Simple, Analytically Solvable, Chamberlinian Agglomeration Model [PDF]

open access: yes
This paper presents a simple Chamberlinian agglomeration model which, like the canonical core-periphery (CP) model, contains two agglomerative forces. However, in contrast to that model, the present model is analytically solvable.
Michael Pflüger
core  

Label‐Free Microscale Technologies for Isolation of Heterogeneous Circulating Tumor Cells

open access: yesAdvanced NanoBiomed Research, EarlyView.
The isolation of circulating tumor cells (CTCs) from liquid biopsy samples is crucial for cancer treatment and monitoring. This review evaluates primary label‐free isolation methods for capturing heterogeneous CTCs and examines their potential to provide deeper insights into tumor heterogeneity and dynamics of cancer progression.
Gürhan Özkayar   +5 more
wiley   +1 more source

Bifurcation analysis and dynamics of a Lorenz –type dynamical system

open access: yesپژوهش‌های ریاضی, 2017
./files/site1/files/0Abstract1.pdfIn this paper we consider a continues Lorenz – type dynamical system. Dynamical behaviors of this system such as computing equilibrium points, different bifurcation curves and computation of normal form coefficient of ...
Behnaz Rahmani   +3 more
doaj  

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