Results 91 to 100 of about 209,741 (271)

Heterogeneous Wettability‐Based Construction of Two‐Phase Interfaces for Underwater Reversible Adhesion

open access: yesAdvanced Science, EarlyView.
The design employs heterogeneous wettability surfaces that construct stable oil‐water interfaces to achieve robust and rapid reversible adhesion. Linear enhancement of adhesion strength is realized through multi‐interface patterning. This adhesive enables rapid on‐demand detachment within five seconds via voltage‐induced electrolysis, offering a level ...
Xiaokai Li   +11 more
wiley   +1 more source

Molecular Sieve Promoted Growth of Ferroelectric Trilayer 3R‐MoS2 for Polarization‐Dependent Reconfigurable Optoelectronic Synapses

open access: yesAdvanced Science, EarlyView.
The noncentrosymmetric trilayer rhombohedral‐stacked MoS2 nanoflakes with enhanced sliding ferroelectric properties are synthesized via a molecular sieve‐assisted chemical vapor deposition process. The switchable polarization states, combined with the exceptional light/gate voltage modulated electrical properties of these nanoflakes, enable broadband ...
Qichao Xue   +11 more
wiley   +1 more source

Decay estimates and extinction properties of parabolic equations with classical and fractional time derivatives

open access: yesElectronic Journal of Differential Equations
In this article, we study the decay estimates and extinction properties of weak solutions to some parabolic equations with classical and fractional time derivatives.
Fanmeng Meng, Xian-Feng Zhou
doaj  

A brief note on Harnack-type estimates for singular parabolic nonlinear operators

open access: yesBruno Pini Mathematical Analysis Seminar
In this brief note we introduce Harnack-type inequalities, which are typical in the context of singular nonlinear parabolic operators, and describe their state of art in the context of anisotropic operators.
Eurica Henriques, Simone Ciani
doaj   +1 more source

Balancing Effective Mass and Carrier Mobility via Ga‐Induced Multi‐Band Valley Engineering in GeTe Thermoelectrics

open access: yesAdvanced Science, EarlyView.
Ga doping drives simultaneous convergence of three valence bands and formation of a midgap band in Ge0.94Bi0.06Te, enhancing the Seebeck coefficient without sacrificing carrier mobility. Lattice vibration disorder and multi‐scale defect engineering suppress lattice thermal conductivity, delivering a ZT exceeding 2.1 and enabling efficient lead‐free ...
Jianglong Zhu   +9 more
wiley   +1 more source

Electrically Tunable Room‐Temperature Microwave Oscillations in GaN/AlN Triple‐Barrier Resonant Tunneling Diodes

open access: yesAdvanced Electronic Materials, EarlyView.
III‐nitride semiconductors have revolutionized optoelectronics, enabling transformative technologies such as high‐efficiency LEDs and lasers. However, their use in intersubband optoelectronics has remained limited. This work marks an important step forward by demonstrating highly coherent inter‐well resonant tunneling injection in III‐nitride ...
Jimy Encomendero   +6 more
wiley   +1 more source

The mathematics of suspensions: Kac walks and asymptotic analyticity

open access: yesElectronic Journal of Differential Equations, 2000
Of concern are suspension flows. These combine directed and random motions and are typically modelled by parabolic partial differential equations.
Eugene C. Eckstein   +2 more
doaj  

Proximity Ferroelectricity in Compositionally Graded Structures

open access: yesAdvanced Electronic Materials, EarlyView.
We perform the finite element modeling of the polarization switching in the compositionally graded AlN‐Al1‐xScxN and ZnO‐Zn1‐xMgxO structures and reveal the switching of spontaneous polarization in the whole structure in all these systems. The coercive field to switch is significantly lower than the electric breakdown field of the unswitchable AlN and ...
Eugene A. Eliseev   +4 more
wiley   +1 more source

Recycled Piezoelectric Materials with Competitive Second‐Life Functional Properties

open access: yesAdvanced Electronic Materials, EarlyView.
The essential piezoelectric ceramics with heavy ecological footprints are not sufficiently recycled. This work demonstrates the feasibility of recycling different types of piezoelectric ceramics using different binders, where the terpolymer binder with relatively large permittivity facilitated superior retention of properties after recycling, promoting
Mohadeseh Tabeshfar   +2 more
wiley   +1 more source

Parabolic Itô equations [PDF]

open access: yesTransactions of the American Mathematical Society, 1974
openaire   +1 more source

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