Results 101 to 110 of about 21,991 (265)

Multimodal Layer‐Crossing Interrogation of Brain Circuits Enabled by Microfluidic Axialtrodes

Advanced Science, EarlyView.
The study introduces a flexible microfluidic axialtrode that integrates optical, electrical, and chemical modalities within a single polymer fiber. By redistributing electrodes and fluidic channels along the fiber axis via angled cleaving, it enables simultaneous optogenetic stimulation, electrophysiological recording, and drug delivery across brain ...
Kunyang Sui, Neela K. Codadu, Daman Rathore, Guanghui Li, Marcello Meneghetti, Anders L. Bøcker, Rune W. Berg, Rob C. Wykes, Christos Markos   +8 more
wiley   +1 more source

Multiple solutions to a singular Lane-Emden-Fowler equation with convection term

Electronic Journal of Differential Equations, 2008
This article concerns the existence of multiple solutions for the problem $$displaylines{ -Delta u = K(x)u^{-alpha}+s(mathcal{A}u^eta+mathcal{B} | abla u|^zeta)+f(x) quad hbox{in }Omegacr u > 0 quad hbox{in }Omegacr u = 0 quad ...
Enrique Lami Dozo, Carlos C. Aranda
doaj  

Compliant Polymeric Sheet‐Based Heat Exchangers

Advanced Science, EarlyView.
This work presents flexible, transparent, and deployable polymer heat exchangers that achieve a heat transfer capacity per cost up to 4x higher than the state of the art, surpassing both metal and other polymer counterparts. The tube‐on‐tube design enables efficient heat transfer without flow occlusion, while the lightweight, corrosion‐resistant, and ...
Richard J. Fontenot, Loic Duggal, Sofia Urbina, Barclay Jumet, Anoop Rajappan, Daniel J. Preston   +5 more
wiley   +1 more source

An Unconditionally Stable Numerical Method for Space Tempered Fractional Convection-Diffusion Models

Journal of Mathematics
A second-order numerical method for two-sided tempered fractional convection-diffusion equations is studied in this paper, both convection term and diffusion term are approximated by the tempered weighted and shifted Grünwald difference operators, the ...
Zeshan Qiu
doaj   +1 more source

DStreaM: A Convective Term Approximation Approach That Corresponds to Pure Convection

Mathematics
In recent decades, considerable effort has been devoted to developing higher-order schemes for the discretization of convective terms that are both stable and reliable.
Kiril Shterev
doaj   +1 more source

Evaporation‐Driven Solutal Marangoni Control of Rayleigh–Taylor Instability in Inverted Films

Advanced Science, EarlyView.
Inverted liquid films, like paint on a ceiling, are inherently unstable under gravity. This work shows that selective evaporation in volatile binary mixtures generates solutal Marangoni stresses that either suppress or amplify the Rayleigh Taylor instability.
Minwoo Choi, Hyejoon Jun, Hyoungsoo Kim
wiley   +1 more source

Determining time-dependent convection and density terms in a convection-diffusion equation using partial data

Communications on Analysis and Computation
In this article, we study an inverse boundary value problem for the time-dependent convection-diffusion equation. We use the nonlinear Carleman weight to recover the time-dependent convection term and time-dependent density coefficient uniquely. Nonlinear weight allows us to prove the uniqueness of the coefficients by making measurements on a possibly ...
openaire   +2 more sources

Biocompatible Magnetopyroelectric Composite Films for Cell Stimulation

Advanced Science, EarlyView.
Magnetopyroelectric films couple Fe3O4 nanoparticles with pyroelectric P(VDF‐TrFE) to turn alternating magnetic fields into controlled heat and pyroelectric currents. This heavy‐metal free platform safely boosts neural progenitor cells differentiation via synergistic thermal and pyroelectrical cues, engages AKT and calcium pathways, and opens practical
Hao Ye, Joaquin Llacer‐Wintle, Semih Sevim, Elric Zhang, Denis von Arx, Lukas Hertle, Martina Accursi, Minsoo Kim, Josep Puigmartí‐Luis, Bradley J. Nelson, Xiang‐Zhong Chen, Salvador Pané   +11 more
wiley   +1 more source

Parabolic problems with slightly superlinear convection terms

In this paper we deal with a non-linear parabolic problem which involving a convection term with super--linear growth, whose model is \[ \frac{\partial u}{\partial t}-÷(\mathcal{M}(x,t)\nabla u)= -÷(u\log (e+|u|)E(x,t))+f(x,t), \] where $\mathcal{M}$ is a bounded measurable matrix, the vector field $E$ and the function $f$ belong to suitable Lebesgue ...
openaire   +2 more sources

On a parabolic p-Laplacian system with a convective term

Annali di Matematica Pura ed Applicata (1923 -)
We prove a result of existence of regular solutions and a maximum principle for solutions to a parabolic p-Laplacian system with convective term.
Crispo, Francesca, Di Feola, Angelica Pia   +1 more
openaire   +4 more sources