Results 131 to 140 of about 43,973 (335)

Controllability of nonlinear degenerate parabolic cascade systems

open access: yesElectronic Journal of Differential Equations, 2016
This article studies of null controllability property of nonlinear coupled one dimensional degenerate parabolic equations. These equations form a cascade system, that is, the solution of the first equation acts as a control in the second equation and
Mamadou Birba, Oumar Traore
doaj  

Integrin‐Piezo1 Axis Drives ECM Remodeling and Invasion of 3D Breast Epithelium

open access: yesAdvanced Science, EarlyView.
Mechanical stiffening of the extracellular matrix around mature mammary acini induces sequential remodeling phases. An early response disrupts the basement membrane and promotes fibronectin secretion, followed by delayed invasion with matrix reorganization and proliferation.
Kabilan Sakthivel   +8 more
wiley   +1 more source

Existence and uniqueness for a degenerate parabolic equation with 𝐿¹-data [PDF]

open access: bronze, 1999
F. Andreu   +3 more
openalex   +1 more source

Prolonged Cell Encapsulation and Gravity‐independent Filamented Light Biofabrication of Muscle Constructs

open access: yesAdvanced Science, EarlyView.
A gravity‐independent filamented light (G‐FLight) projection method is presented for rapid biofabrication of anisotropic tissues, demonstrated with muscle constructs as a target application. Specialized photocrosslinkable resins enable refrigeration or cryopreservation with encapsulated cells.
Michael Winkelbauer   +13 more
wiley   +1 more source

Large time behavior of solution to a class of doubly nonlinear parabolic equations

open access: yesElectronic Journal of Differential Equations, 1994
solutions of the doubly degenerate parabolic equation $u_t={ m div} (|u|^{m-1}|abla u|^{p-2}abla u)$ in a cylinder $Omegaimes R^+$, with initial condition $u(x,0)=u_0(x)$ in $Omega$ and vanishing on the parabolic boundary $partialOmegaimes R^+$.
Juan J. Manfredi, V. Vespri
doaj  

Solar‐Powered Electrokinetic Filtration using Hierarchical Porous Membranes for the Off‐Grid Removal of Ultrafine Contaminants

open access: yesAdvanced Science, EarlyView.
A solar‐powered nanoelectrokinetic filtration system enables high‐flux removal of ultrafine contaminants without relying on nanoscale pores or pressure‐driven membranes, offering a sustainable solution for the off‐grid water purification. Abstract The removal of ultrafine suspended solids from water remains a critical challenge due to the tradeoffs ...
Woonjae Choi   +4 more
wiley   +1 more source

Shedding Light on Common Misinterpretations in Photocatalyst Characterization

open access: yesAdvanced Energy Materials, EarlyView.
For heterogeneous semiconductor‐based photocatalysts, Marschall et al. highlight common misconceptions in material synthesis, characterization, and performance evaluation, together with detailed explanations on how to avoid them. The guidelines thus presented can help to improve reporting of photocatalyst performance in environmental applications, such
Roland Marschall   +2 more
wiley   +1 more source

Ductile Inorganic Thermoelectrics: Advances, Challenges, and Perspectives

open access: yesAdvanced Energy Materials, EarlyView.
Thermoelectric technology facilitates efficient energy harvesting from natural sources, especially body heat. Plastic bulk inorganic thermoelectric materials offer high plasticity, ease of fabrication, and competitive thermoelectric performance. This review comprehensively outlines recent advances in plastic bulk inorganic thermoelectrics, focusing on ...
Cheng‐Jiong He   +5 more
wiley   +1 more source

Impact of Trap Depth on the Steady‐State and Transient Photoluminescence in Halide Perovskite Films

open access: yesAdvanced Energy Materials, EarlyView.
The presence of shallow traps in halide perovskites is frequently postulated by density functional theory calculations. This review studies the implications of recombination‐active shallow traps on steady‐state and transient recombination kinetics. How to identify shallow traps and how the depth of the traps and their density are reflected in different
JĂźrgen HĂźpkes   +2 more
wiley   +1 more source

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