Results 161 to 170 of about 33,448 (315)

Atomic‐Level Ionic Displacement Polarization Enhanced Piezocatalytic Hydrogen Evolution in Covalent Organic Frameworks

open access: yesAdvanced Functional Materials, EarlyView.
Two isomorphic COFs were synthesized and compared, including an amphoteric COF (SQ‐TAPT) and a neutral COF (PDA‐TAPT). The ionic bonds in SQ‐TAPT introduce more Born effective charges, thereby enhancing its ionic displacement polarization. Experimental and theoretical calculations demonstrated that SQ‐TAPT exhibited higher polarity and stronger ...
Ge Yan   +12 more
wiley   +1 more source

A Comparative Study of the Frobenius Method and a Lie Symmetry Analysis Method for Solving Second-Order Ordinary Differential Equations with Regular Singularities

open access: diamond
Winter Sinkala   +49 more
openalex   +1 more source

Lie symmetries analysis for SIR model of epidemiology

open access: hybrid, 2013
Abdelaziz Ouhadan   +2 more
openalex   +1 more source

Spin Defects in Hexagonal Boron Nitride as 2D Strain Sensors

open access: yesAdvanced Functional Materials, EarlyView.
We demonstrate that boron‐vacancy (VB${\rm V}_{\rm B}$) centers in hexagonal boron nitride (hBN) enable quantitative strain sensing with sub‐micrometer resolution. Using this approach under continuously tunable in‐plane stress, we precisely quantify strain‐induced shifts of the E2g${\rm E}_{2{\rm g}}$ Raman mode in multilayer hBN, establishing VB${\rm ...
Zhao Mu   +7 more
wiley   +1 more source

Dynamics of invariant solutions of the DNA model using Lie symmetry approach. [PDF]

open access: yesSci Rep
Hussain A   +5 more
europepmc   +1 more source

Photon Avalanching Nanoparticles: The Next Generation of Upconverting Nanomaterials?

open access: yesAdvanced Functional Materials, EarlyView.
This Perspective outlines the mechanistic foundations that enable photon‐avalanche (PA) behavior in lanthanide nanomaterials and contrasts them with emerging application spaces and forward‐looking design strategies. By bridging threshold engineering, energy‐transfer dynamics, and materials engineering, we provide a coherent roadmap for advancing the ...
Kimoon Lee   +7 more
wiley   +1 more source

Lie symmetry analysis and solitary wave solution of biofilm model Allen-Cahn. [PDF]

open access: yesSci Rep
Shakeel M   +4 more
europepmc   +1 more source

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