Results 251 to 260 of about 1,977,910 (347)

Topology Optimization Enables Freeform Matrix Fourier Optics

open access: yesAdvanced Optical Materials, EarlyView.
A topology‐optimized freeform metasurface is designed and fabricated to realize matrix Fourier optics, enabling the diffraction of multiple polarization states into distinct far‐field orders. By combining forward design with gradient‐based inverse optimization, high polarization contrast of up to 98.7% is achieved.
Yu‐Tzu Liu   +5 more
wiley   +1 more source

Dementia in People With Multiple Sclerosis: A Systematic Review and Meta-Analysis. [PDF]

open access: yesBrain Behav
Mirmosayyeb O   +7 more
europepmc   +1 more source

Plasma lipid and lipoprotein responses to dietary fat and cholesterol: a meta-analysis

open access: bronze, 1997
W. Huntting Howell   +4 more
openalex   +1 more source

Fabrication Optimization of van der Waals Metasurfaces: Inverse Patterning Boosts Resonance Quality Factor

open access: yesAdvanced Optical Materials, EarlyView.
An optimized fabrication approach for the nanostructuring of optical metasurfaces from van der Waals materials like hexagonal boron nitride is presented. The resonator geometries show enhanced geometric homogeneity, resulting in a significant increase in quality factors of symmetry‐protected bound states in the continuum resonances.
Jonas Biechteler   +7 more
wiley   +1 more source

High‐Efficiency Blue‐Emitting Multi‐Resonance TADF Organic Light‐Emitting Diodes Constructed on Spiro Quinolinoacridine/Fluorene‐diphenylphosphine Oxide Positional Isomers

open access: yesAdvanced Optical Materials, EarlyView.
We report spiro‐configured hosts constructed on the assembly of a quinolinoacrdine unit and different fluorene positional isomers for high‐performance blue MR‐TADF Organic Light‐Emitting Diodess. The v‐DABNA:CN‐Ir emissive layer combination with SQA‐4‐FPOPh2 as host shows a narrowband emission peak and a high maximum external quantum efficiency of 22.9%
Kelvine Letellier   +7 more
wiley   +1 more source

The Induction of Dissociative States: A Meta-Analysis. [PDF]

open access: yesBiol Psychiatry Glob Open Sci
Brake B   +10 more
europepmc   +1 more source

ORGANIZATIONAL CONFIGURATIONS AND PERFORMANCE: A META-ANALYSIS.

open access: green, 1997
David J. Ketchen   +13 more
openalex   +2 more sources

Terahertz Spoof Surface Plasmon Polariton Structure for High‐Precision Gas Sensor Technology

open access: yesAdvanced Photonics Research, EarlyView.
This study presents a high‐sensitivity THz sensor based on spoof surface plasmon polaritons, optimized for gas sensing. The multilayer structure enables placement of the sample material in the densest region of the plasmonic surface waves, enhancing interaction with THz waves and significantly improving sensitivity to small refractive index variations ...
Vahid Najafy   +2 more
wiley   +1 more source

From meta‐analysis to Cochrane reviews

open access: yesJournal of Cachexia, Sarcopenia and Muscle, 2018
Nicole Ebner   +3 more
doaj   +1 more source

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