Results 201 to 210 of about 17,073 (288)

High‐Efficiency Generation of Vectorial Terahertz Beams via Surface‐Wave‐Excited Dielectric Metasurfaces

open access: yesSmall, EarlyView.
ABSTRACT Generating pre‐designed vectorial beams via on‐chip devices can yield many fascinating applications, but traditional diffraction‐based devices are bulky and inefficient. While plasmonic metasurfaces exhibit ultra‐compact sizes and deep‐subwavelength resolutions, their working efficiencies are limited by metallic losses.
Yu He   +8 more
wiley   +1 more source

Stimuli‐responsive nanostructured hydrogen sulfide donors for enhanced cancer treatments

open access: yesSmart Molecules, EarlyView.
Three typical kinds of stimuli‐responsive nanostructured hydrogen sulfide (H2S) donors are reviewed. The nanostructures ensure precise delivery of H2S to the lesion site and regulate the release behavior. The H2S‐based gas therapy has been used to synergize with other cancer treatment modalities, achieving enhanced efficacy while reducing side effects.
Yuxuan Lyu   +7 more
wiley   +1 more source

Microstructure Characterization of Bending Effects in 304L Stainless Steel Cladded with Low‐Alloy Steel Weld

open access: yessteel research international, EarlyView.
Prebending of 304L/Q345R cladded plates significantly alters the subsequent weld thermal cycle and modifies the local interfacial microstructure. Combined electron backscatter diffraction (EBSD) and microscopy analysis demonstrates that deformation twinning, martensitic transformation, and defect initiation are concentrated at the trimaterial junction,
Ali Fahem   +2 more
wiley   +1 more source

Influence of Oxygen Contamination on the Genesis of Nonmetallic Inclusions in a Microalloyed Steel

open access: yessteel research international, EarlyView.
Oxygen contamination during melting of steels strongly affects the evolution of nonmetallic inclusions. Controlled remelting experiments, combined with SEM/EDS analysis and thermodynamic simulations, reveal how reoxidation promotes the transformation of alumina‐based inclusions into complex FeO–MnO oxides and other interactions.
Leandro Pianca Prandi   +2 more
wiley   +1 more source

New genomic techniques for sustainable agriculture and their prospects in Europe. [PDF]

open access: yesNPJ Sustain Agric
Gaskell G   +5 more
europepmc   +1 more source

Crisis micro‐learning: A framework for understanding the micro‐flow of policy learning and Australia's COVID‐19 response

open access: yesAustralian Journal of Public Administration, EarlyView.
Abstract COVID‐19 has intensified interest in crisis policy learning, yet the micro‐level interactions among political, bureaucratic, and expert actors remain underexplored. We conceptualise an ideal‐type framework for the micro‐flow of crisis learning, an ordinarily epistemic and context‐specific process of individual‐level interactions, where lessons
Neil Mortimer, Nicholas Bromfield
wiley   +1 more source

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