Results 41 to 50 of about 13,906 (295)

The Microwave properties of tissue and other lossy dielectrics [PDF]

open access: yes, 2004
This thesis describes work on the theoretical modelling and experimental measurement of the complex permittivity of dielectrics. The main focus of research has been into the characterisation of permittivity of planar and layered samples within the ...
Alabaster, Clive M.
core  

Foerster-Type nonradiative energy transfer in media with complex permittivity

open access: yes, 2023
Conference Name: 13th International Conference on Metamaterials, Photonic Crystals and Plasmonics, META 2023Date of Conference: 18 July 2023 through 21 July 2023We present the effects of the complex permittivity of a background medium on Foerster-type ...
Hernandez-Martinez, Pedro Ludwig   +2 more
core  

Enhanced Strength and Corrosion Resistance of Ti‐13Nb‐12Ta‐10Zr‐4Sn Alloy by Aging Treatment

open access: yesAdvanced Engineering Materials, EarlyView.
This work systematically investigates the effect of aging treatment on mechanical properties and corrosion behavior of vacuum arc‐melted Ti‐13Nb‐12Ta‐10Zr‐4Sn alloy. Owing to the increased α″ martensite, strength and corrosion resistance were significantly enhanced by aging treatment.
Yuhua Li   +5 more
wiley   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

open access: yesAdvanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova   +9 more
wiley   +1 more source

Electrochemical model of euglena sanguinea ehrenberg stimulated with multi-level electromagnetic fields

open access: yesASEAN Journal on Science and Technology for Development, 2017
This research aimed at studying the property of Euglena Sanguinea Ehrenberg (E. sanguinea) before and after being stimulated by multi-level electromagnetic fields (MLEM).
K. Packamwongsang,   +5 more
doaj   +3 more sources

Composites of Shellac and Silver Nanowires as Flexible, Biobased, and Corrosion‐Resistant Transparent Conductive Electrodes

open access: yesAdvanced Functional Materials, EarlyView.
Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein   +4 more
wiley   +1 more source

Effect of microstructure on complex permittivity and microwave absorption properties of recycled α-Fe2O3 nanopowder prepared by high-energy ball milling technique

open access: yes, 2022
This study was aimed at investigating the effect of microstructural variations on relative complex permittivity and microwave absorption properties of recycled α-Fe2O3, following application of high-energy ball milling technique to modify particles into ...
Azis, Raba’ah Syahidah   +3 more
core   +1 more source

Role of Intrinsic Electron Trapping in Negative Charging of Amorphous Alumina

open access: yesAdvanced Functional Materials, EarlyView.
Intrinsic electron trapping in amorphous Al2O3 is examined using hybrid‐DFT models spanning a wide density range. Both spontaneous and thermally activated trapping are identified, with pronounced spontaneous localization in dense, partly crystallized structures.
Jack W. Strand   +5 more
wiley   +1 more source

Spatially Modulated Morphotropic Phase Boundaries in a Compressively Strained Multiferroic Thin Film

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT The coexisting rhombohedral‐like (R′, MA) and tetragonal‐like (T′, MC) monoclinic phases in compressively strained bismuth ferrite thin films exhibit exceptional piezoelectric and magnetic properties. While previous studies have largely focused on probing the morphotropic phase boundaries (MPBs) comprising ordered R′/T′ twins, their self ...
Ting‐Ran Liu   +7 more
wiley   +1 more source

A Microwave Frequency Range Experiment for the Measurement of Snow Density and Liquid Water Content

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
This article presents a new nondestructive characterization system for the extraction of both snow density and liquid water content (LWC). The experiment primarily measures the relative complex permittivity of snow ($\overline {{{\boldsymbol{\varepsilon }
Cedric Bermond   +2 more
doaj   +1 more source

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