Results 151 to 160 of about 21,302 (261)

Understanding Volatile Electrical Switching in hBN Nanodevices by Fully Optical Operando Investigation

open access: yesSmall, EarlyView.
Operando optical characterization of vertical two‐terminal monolayer hexagonal Boron Nitride devices is used to gain new insight into the key role of defects in the dynamics of switching. Characterization of photoluminescence and dark‐field scattering light signals during electrical switching indicates that the formation of conductive filaments of gold
Dawn M. Kelly   +4 more
wiley   +1 more source

Thermal Imaging for Quality Control in Thin Silicon‐Based Coatings for Lithium‐Ion Batteries: Defect Detection, Drying Dynamics, and Machine Learning‐Based Mass Loading Estimation

open access: yesSmall Methods, EarlyView.
Thermal imaging offers a non‐destructive approach to quality control in silicon‐based lithium‐ion battery electrodes, enabling the detection of defects, variations in mass loading, and the monitoring of drying dynamics. This study introduces an automated defect‐detection‐algorithm and a machine learning‐based Random Forest model to estimate mass ...
Adil Amin   +4 more
wiley   +1 more source

Quantification of Azides on the Surface of Nanoparticles: Toward Precise Bioconjugation

open access: yesSmall Structures, EarlyView.
Herein, two spectroscopic methods for surface azides quantification are developed. The first method is based on the ability of electron‐withdrawing ligands to quench the fluorescence of conjugated dyes, whereas the second method is more general and is based on the UV–Vis monitoring of alkyne absorbance during the click reaction.
Elizaveta Maksimova   +2 more
wiley   +1 more source

Influence of environmental conditions on the creep behavior of large‐scale concrete specimens

open access: yesStructural Concrete, EarlyView.
Abstract In this article, a testing campaign on large‐scale concrete specimens to study the influence of environmental conditions on their creep behavior for different member sizes is presented. This testing campaign is unique due to its specimen dimensions (cross‐sectional areas of up to 1 m2) and the continuous deformation measurements for over 6 ...
Wolfgang Bachofner   +4 more
wiley   +1 more source

A shear failure analysis of ultra‐high‐performance concrete based on modified contact density and concrete damaged plasticity models

open access: yesStructural Concrete, EarlyView.
Abstract Ultra‐high‐performance concrete (UHPC) becomes a promising composite material in structural concrete due to its exceptional mechanical and durability properties. However, the performance and damage characteristics of UHPC under different loading scenarios remain a subject of ongoing research.
Kefiyalew Zerfu   +2 more
wiley   +1 more source

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