Results 91 to 100 of about 35,706 (291)

Near‐Field Electrospinning Micro‐Printhead Achieves Precise Control of Nanofiber Deposition

Advanced Engineering Materials, EarlyView.
A micro‐printhead for near‐field electrospinning enables reproducible deposition of polymer nanofibers with diameters below 50 nm. Systematic parameter studies uncover the mechanisms linking operating conditions to fiber morphology, paving the way for precise and low‐cost nanoscale 3D manufacturing.As a high‐resolution, cost‐effective, and rapid ...
Han Xu, Dario Mager, Jan G. Korvink
wiley   +1 more source

On the existence of positive radial solutions for nonlinear elliptic equations in annular domains

, 1989
We study the existence of positive radially symmetric solutions of Δu + g(¦x¦)f(u) = 0 in annulus with Dirichlet (Dirichlet/Neumann) boundary conditions.
Lin, Song-Sun
core   +1 more source

Coercive elliptic systems with gradient terms

Advances in Nonlinear Analysis, 2017
In this paper we give a classification of positive radial solutions of the following system:
Filippucci Roberta, Vinti Federico
doaj   +1 more source

Consumed by Abdominal Distention

Arthritis Care &Research, EarlyView.
Abimbola Fadairo‐Azinge, James Grenert, Brian Haas, Mary Margaretten   +3 more
wiley   +1 more source

Additive Manufacturing of Continuous Fibre Reinforced Composites: Process, Characterisation, Modelling, and Sustainability

Advanced Engineering Materials, EarlyView.
Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley   +1 more source

Uniqueness of positive radial solutions for Δu−u+up=0 on an annulus

, 2003
We prove uniqueness of positive radial solutions to the semilinear elliptic equation Δu−u+up=0,p>1, subject to the Dirichlet boundary condition on an annulus in Rn,n⩾3.
Tang, Moxun
core   +1 more source

Positive solutions for a class of quasilinear singular equations

Electronic Journal of Differential Equations, 2004
This article concerns the existence and uniqueness of solutions to the quasilinear equation $$ -Delta_p u= ho(x) f(u) quad hbox{in } mathbb{R}^N $$ with $u > 0$ and $u(x)o 0$ as $|x| o infty$.
Jose Valdo Goncalves, Carlos Alberto P. Santos   +1 more
doaj  

Some Properties of Positive Solutions for Nonlinear Systems Involving Pseudo-Relativistic Operators

Fractal and Fractional
In this paper, we mainly investigate the radial symmetry and monotonicity of positive solutions for a nonlinear system involving pseudo-relativistic operators and fractional derivatives of order (0,1).
Xiaoshan Wang, Zengbao Wu
doaj   +1 more source

Karl Popper and the Mechanisms of Hydrogen Embrittlement

Advanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source

The Existence of Multiple Solutions for Nonhomogeneous Kirchhoff Type Equations in

Abstract and Applied Analysis, 2013
We are concerned with the existence of multiple solutions to the nonhomogeneous Kirchhoff type equation where are positive constants, , we can find a constant such that for all the equation has at least two radial solutions provided .
Qi Zhang, Xiaoli Zhu
doaj   +1 more source