Results 141 to 150 of about 8,991,569 (289)

Existence of bounded positive solutions of a nonlinear differential system

open access: yesElectronic Journal of Differential Equations, 2012
In this article, we study the existence and nonexistence of solutions for the system $$displaylines{ frac{1}{A}(Au')'=pu^{alpha }v^{s}quad hbox{on }(0,infty ), cr frac{1}{B}(Bu')'=qu^{r}v^{eta }quad hbox{on }(0,infty ), cr Au'(0)=0,quad u(infty )=a ...
Sabrine Gontara
doaj  

Halide Composition Controls Phase Morphology and Device Specific Performance in Perovskite Photovoltaics and Light Emitting Diodes

open access: yesAdvanced Functional Materials, EarlyView.
We demonstrate that halide composition determines phase morphology, governing distinct operating mechanisms in mixed halide perovskites. Phase segregating 75% Br compositions enhance solar cell performance, whereas intrinsically phase‐separated 95% Br compositions provide stable light emitting diodes.
Tal Binyamin   +6 more
wiley   +1 more source

Existence of positive solution for a semi positone radial p-laplacian system.

open access: yes, 2019
In this paper, we prove, for λλ and μμ large, the existence of a positive solution for the semi-positone elliptic system (P)⎧⎩⎨⎪⎪−Δpu=λω(x)f(v)−Δqv=μρ(x)g(u)(u,v)=(0,0)in Ω,in Ω,on ∂Ω,(P){−Δpu=λω(x)f(v)in Ω,−Δqv=μρ(x)g(u)in Ω,(u,v)=(0,0)on ∂Ω, where Ω ...
Martins, Eder Marinho
core   +1 more source

Asymptotic behavior of positive solutions for the radial \(p\)-Laplacian equation

open access: yesElectronic Journal of Differential Equations, 2012
Summary: We study the existence, uniqueness and asymptotic behavior of positive solutions to the nonlinear problem \[ {1\over A} (A\Phi_p(u'))'+ q(x) u^\alpha= 0\quad\text{in }(0,1), \] \[ \lim_{x\to 0} A\Phi_p(u')(x)= 0,\quad u(1)= 0, \] where \(\alpha< p-1\), \(\Phi_p(t)= t|t|^{p-2}\), \(A\) is a positive differentiable function and \(q\) is a ...
Sonia Ben Othman, Habib Maagli
openaire   +2 more sources

XTRUDE: A Process‐Informed Framework for High‐Fidelity Analysis of Hydrogel Extrusion

open access: yesAdvanced Functional Materials, EarlyView.
Extrusion performance emerges from the interplay between material properties and processing conditions. XTRUDE (eXTrusion Rheology for Understanding and Defining Extrudability) recreates the extrusion environment with in situ pressure and temperature sensing, enabling characteristic pressure signatures to quantify extrusion‐specific phenomena and ...
Farhad Sanaei   +4 more
wiley   +1 more source

Decoupling Li+ Transport in Self‐Healing Polymer Dual‐Salt Electrolytes for Room Temperature Lithium Metal Batteries

open access: yesAdvanced Functional Materials, EarlyView.
A self‐healable polymer matrix, crosslinked via dynamic imine bonds, is synergistically coupled with a LiPF6–LiDFOB dual‐salt system to decouple Li+ from the polymer matrix, enabling fast Li+ transport. This strategy offers an effective pathway toward high‐performance, next‐generation gel‐polymer‐based Li‐metal batteries.
Soumallya Banerjee   +10 more
wiley   +1 more source

Atomic‐Scale Visualization of Topotactic Resistive Switching in Epitaxial La0.5Sr0.5CoOx Neuromorphic Memristors

open access: yesAdvanced Functional Materials, EarlyView.
Forming‐free epitaxial Pt/La0.5Sr0.5CoOx (LSCO)/La0.5Sr0.5MnO3 (LSMO) memristors exhibit heterogeneous and partially reversible topotactic switching involving brownmillerite (BM)‐, Grenier (GN)‐like‐, and perovskite (PV)‐like configurations. Atomic‐resolution scanning transmission electron microscopy and in situ transmission electron microscopy resolve
Zi‐Qin Hong   +5 more
wiley   +1 more source

Radial positive solutions for mixed local and nonlocal supercritical Neumann problem [PDF]

open access: yes
In this paper, we establish the existence of positive non-decreasing radial solutions for a nonlinear mixed local and nonlocal Neumann problem in the ball. No growth assumption on the nonlinearity is required.
Temgoua, Remi Yvant   +2 more
core   +1 more source

Arterial access site in the catheterisation lab : Is radial the way to go? [PDF]

open access: yes, 2013
Aim: With radial access increasing in popularity in the United States and the United Kingdom, this literature review explores whether radial access in coronary angiography and percutaneous coronary intervention is superior to femoral access, focusing on ...
Cassar, Mark Philip
core  

Lone‐Pair‐Induced Lattice Distortion in Lead‐Free Hybrid Perovskites for High‐Performance Nanogenerators

open access: yesAdvanced Functional Materials, EarlyView.
A lead‐free tin‐based hybrid perovskite is designed in which stereochemically active lone‐pair electrons on tin distort the crystal lattice and break its symmetry. Blended into a flexible polymer, the material converts pressure into electricity at milliwatt‐scale power density and continues working far below freezing, powering a commercial wristwatch ...
Majid Haji Bagheri   +12 more
wiley   +1 more source

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