Results 111 to 120 of about 1,545,883 (293)

A free boundary problem for a degenerate parabolic equation: regularity of the solution

open access: yes, 1999
We consider a free boundary problem for a degenerate parabolic elliptic parabolic equation with a free boundary arising in filtration theory. Under some assumptions on the data, the authors prove the existence and uniqueness of global classical ...
MANNUCCI, PAOLA, GIANNI R.
core  

Interface‐Mediated Self‐Rectifying CsCuCl3 Memristors With Tunable Thresholds for Reconfigurable Neuromorphic Computing

open access: yesAdvanced Science, EarlyView.
Interface‐mediated CsCuCl3 memristors achieve self‐rectification and tunable thresholds, enabling selector‐free 8 × 8 arrays with > 105 ON/OFF and > 104 rectification. Supporting dual‐mode neuromorphic computing, negative thresholds preserve low‐light recognition accuracy (91%), while positive thresholds enable sparsity‐aware edge computing.
Qingwei Shi   +9 more
wiley   +1 more source

Coexistence of Large Nernst Effect and Axis‐Dependent Conduction Polarity in Semimetal MoSi2

open access: yesAdvanced Electronic Materials, EarlyView.
MoSi2${\rm MoSi}_2$ is a rare material in which axis‐dependent conduction polarity (ADCP) and a large ordinary Nernst effect (ONE) coexist. The pronounced ONE (199μVK−1$199\,\umu \mathrm {V}\,\mathrm {K}^{-1}$) originates from nearly perfect carrier compensation, high mobility, and likely phonon drag, while ADCP arises from mixed‐dimensionality of the ...
Orest Pavlosiuk, Maciej J. Winiarski
wiley   +1 more source

Homogenization of immiscible compressible two-phase flow in double porosity media

open access: yesElectronic Journal of Differential Equations, 2016
A double porosity model of multidimensional immiscible compressible two-phase flow in fractured reservoirs is derived by the mathematical theory of homogenization.
Latifa Ait Mahiout   +3 more
doaj  

Fast Homoepitaxy on (100) β‐Ga2O3 Substrates With Large Grown‐In Offcut

open access: yesAdvanced Electronic Materials, EarlyView.
(100) β‐Ga2O3 substrates with grown‐in offcuts eliminate grinding waste. A 13.7° offcut in the [‐c] direction produces vertical (001) sidewalls, ideal for 3D architectures. Increasing the offcut angle from 0° to 13.4° continually increases growth rate up to 30x, and step‐flow growth is maintained.
M. Brooks Tellekamp   +9 more
wiley   +1 more source

Reveal Non‐Uniform Passivation on Lithium Metal Anode With Operando Spectroscopic Ellipsometry

open access: yesAdvanced Energy Materials, EarlyView.
In‐operando spectroscopic ellipsometry reveals how nucleation and crystallographic orientation govern the non‐uniform growth of native passivation films on lithium metal. Time‐resolved thickness mapping captures island formation and coalescence, while orientation‐dependent measurements show that the equilibrium film on Li(110) is approximately half as ...
Jianyu Li   +3 more
wiley   +1 more source

Observability inequality, the interpolation inequality and the spectral inequality for the degenerate parabolic equation in R

open access: yes, 2023
This paper investigates the interrelationships between the observability inequality, the H\"older-type interpolation inequality, and the spectral inequality for the degenerate parabolic equation in $\mathbb{R}$. We elucidate the distinctive properties of
Wu, Weijia, Yang, Donghui, Liu, Yuanhang
core   +1 more source

Quasiconformal mappings and degenerate elliptic and parabolic equations

open access: yes, 1989
In this paper two Harnak inequalities are proved concerning a degenerate elliptic and a degenerate parabolic equation.
Chiarenza, Filippo   +1 more
core   +1 more source

The Dirichlet Problem for a Certain Degenerate Parabolic Equation, II

open access: yes, 2015
We make an extension of the result obtained in our preceding paper [1] for the degenerate parabolic equation ut = [x(1-x)]αUxx(x, t) (α=1), studying the case of ...
KOBAYASHI, Yasumaro, ITAYA, Nobutoshi
core  

A Computational Approach for Biomimetic Design of Liver‐On‐A‐Chip

open access: yesAdvanced Intelligent Discovery, EarlyView.
A biomimetic liver‐on‐a‐chip with antiparallel perfusion was designed using COMSOL‐guided simulation to replicate hepatic acinus transport. Full‐scale modelling revealed diffusion‐dominated, length‐dependent nutrient gradients and low‐shear conditions.
Zhenxu Yang   +9 more
wiley   +1 more source

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