Results 101 to 110 of about 17,339 (265)

Some nonlocal operators and effects due to nonlocality

open access: yes, 2017
In this PhD thesis, we deal with problems related to nonlocal operators, in particular to the fractional Laplacian and to some other types of fractional derivatives (the Caputo and the Marchaud derivatives). We make an extensive introduction to the fractional Laplacian, we present some related contemporary research results and we add some original ...
openaire   +2 more sources

A Self‐Enhanced Tandem Catalytic System for Olefin‐to‐Diol Conversion Powered by Single‐Atom Fe Catalysts With In Situ Generated Acid

open access: yesEcoEnergy, EarlyView.
A single‐atom iron catalyst with well‐defined Fe–N4 sites enables a tandem epoxidation‐hydrolysis process for converting terminal olefins to 1,2‐diols. The in situ‐generated isobutyric acid drives the hydrolysis step, affording broad substrate scope and excellent recyclability.
Tao‐Tao Liu   +7 more
wiley   +1 more source

Photonic realization of erasure-based nonlocal measurements

open access: yesNanophotonics, 2019
Relativity theory severely restricts the ability to perform nonlocal measurements in quantum mechanics. Studying such nonlocal schemes may thus reveal insights regarding the relations between these two fundamental theories.
Pan Wei-Wei   +8 more
doaj   +1 more source

Confined Hot Carrier Cooling Via Excited‐State Energy Gap Engineering in Graphyne Carbon Allotropes

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The excited‐state energy gap (EEG), regulated by the concentration of sp‐hybridized carbon, provides an effective handle for tuning electron–phonon coupling behavior. This design enables long‐lived confinement of hot carriers near the top of the EEG with controllable energy levels.
Fulong Dai   +9 more
wiley   +1 more source

Low‐Dimensional Materials and Van Der Waals Heterostructures for Energy Application: A Comprehensive Review

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Low‐dimensional materials (0D, 1D, and 2D) exhibit unique electronic and physicochemical properties, enabling advanced nanoelectronic and optoelectronic devices. Mixed‐dimensional heterostructures combine these materials to enhance functionality.
Qaisar Alam   +3 more
wiley   +1 more source

Fully Polarimetric SAR Image Filtering by Combining Block Matching and Lee Filter

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Speckle filtering is a key preprocessing approach for the applications of polarimetric synthetic aperture radar (PolSAR) data. Most current PolSAR filtering algorithms can hardly get good balance in suppressing speckle and retaining image details.
Guisheng Zhao, Shengyuan Zhu, Yinglei Wu
doaj   +1 more source

Anion‐Receptive Triazine‐Centered Azobenzene Trimers

open access: yesEuropean Journal of Organic Chemistry, EarlyView.
Triazine‐centered azobenzene trimers combine visible‐light switching and anion‐responsive charge‐transfer absorption in a single C3‐symmetric platform, establishing triazine scaffolds as versatile, multistimuli photoswitches for adaptive molecular and supramolecular materials.
Awatef Ayadi   +5 more
wiley   +1 more source

Nonlocal electrodynamics of two-dimensional anisotropic magnetoplasmons

open access: yesNanophotonics
We present a hydrodynamic model, grounded in Madelung’s formalism, to describe collective electronic motion in anisotropic materials. This model incorporates nonlocal contributions from the Thomas–Fermi quantum pressure and quantum effects arising from ...
Chaves André J.   +5 more
doaj   +1 more source

Aumolertinib Versus Osimertinib as First‐Line Treatment for EGFR‐Mutant Non‐Small Cell Lung Cancer: A Retrospective Real‐World Multicenter Study

open access: yesInternational Journal of Cancer, EarlyView.
As third‐generation EGFR‐tyrosine kinase inhibitors, both aumolertinib and osimertinib demonstrate clinical efficacy for non‐small cell lung adenocarcinoma, especially in patients with brain metastases. Currently, head‐to‐head studies comparing these two agents in real‐world settings are scarce.
Jinxia Wang   +9 more
wiley   +1 more source

Assessing and Explaining Human–Nature Coordination at the County Scale in China: Combining an Interpretable Spatiotemporal Graph Neural Network and Difference‐In‐Differences

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT Coordinating high‐intensity human activities with fragile ecosystems remains a major challenge for global sustainability. Accurate assessment of human–nature coordination (HNC) is critical, yet county‐level variations, underlying drivers, and responses to ecological zoning have seldom been examined simultaneously within a unified framework. We
Qi Liu   +4 more
wiley   +1 more source

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