Results 151 to 160 of about 1,457,599 (278)

Fluorescent Hydrogel‐Based Strain Sensor With Machine Learning‐Augmented Performance

open access: yesAdvanced Intelligent Discovery, EarlyView.
Fluorescent hydrogel strain sensor based on carbon quantum dots enabling optical readout of deformation through strain‐dependent emission changes, coupled with Random Forest analysis to capture nonlinear fluorescence‐concentration relationships and identify optimal sensing conditions. Hydrogels are ideal matrices for bio‐integrated wearable sensors due
Tailai Chen   +4 more
wiley   +1 more source

A comparison of ocean emissivity models using the Advanced Microwave Sounding Unit, the Special Sensor Microwave Imager, the TRMM Microwave Imager, and airborne radiometer observations

open access: yes, 2020
[1] New measurements of the permittivity of saline water at millimeter wavelengths have the potential to improve the accuracy of ocean surface emissivity models for use with microwave and millimeter-wave imaging and sounding instruments. Recent radiative
W J   +11 more
core  

The Part and the Whole: Field‐Dependent THz‐EPR Spectroscopy Probes Lattice‐Dependent Electronic Structure in Iron(II) Spin Crossover

open access: yesAngewandte Chemie International Edition, EarlyView.
THz‐EPR spectroscopy provides direct access to the low‐lying electronic structure and spin–phonon coupling in iron(II) spin crossover (SCO) complexes. Quantification of the high‐spin fraction (γHS$\gamma _{\text{HS}}$) and subtle shifts in magnetic transitions reveal the influence of the surrounding lattice and enable discrimination between microscopic
Jooris Beyer   +8 more
wiley   +1 more source

Radar-Infrared Multi-Scale Bi-Stealth via Optically Transparent Chaotic Coding Metasurface. [PDF]

open access: yesNanomicro Lett
Wang Y   +9 more
europepmc   +1 more source

Fundamentals, Advances, and Applications of Electrospun Nanofibrous 3D Materials

open access: yesJournal of Applied Polymer Science, EarlyView.
Three‐dimensional electrospun nanofibrous systems offer unique properties and microenvironments. These properties are determined by the fabrication strategies employed and can be adjusted by the incorporation of functional additives to achieve multifunctionality for specific applications. The applications range from the biomedical to the environmental,
Rebecca Hengsbach   +4 more
wiley   +1 more source

Two‐Photon Absorption in Perovskite Semiconductors

open access: yesAdvanced Physics Research, EarlyView.
The two‐photon absorption (TPA) models used for perovskite semiconductors were primarily developed for conventional semiconductors and neglect the unique perovskite band structure. We have developed a model for the perovskite TPA coefficient, incorporating the inter‐ and intra‐band transitions in the conduction band states.
David Ompong   +6 more
wiley   +1 more source

Integrated biorefinery for cellulosic ethanol and spherical nanolignin production from coconut waste

open access: yesBiofuels, Bioproducts and Biorefining, EarlyView.
Abstract Green coconut waste was subjected to different fractionation methods to obtain integrated lignin nanoparticles and cellulosic ethanol. Pretreatment with gradual addition of dilute sulfuric acid provided a higher structural hemicellulose precursor yield (68.2%).
Ricardo Marchezan Farias de Mesquita   +7 more
wiley   +1 more source

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