Results 81 to 90 of about 1,030,595 (310)

Optical Signature of Moiré Superlattices Formed by Twisted SrTiO3 Membranes

open access: yesAdvanced Functional Materials, EarlyView.
We discover optical signatures from bonded interfaces in twisted SrTiO3 moiré superlattices, including low‐frequency Raman vibrational modes and strong second‐harmonic generation, consistent with strong interlayer coupling inferred from cross‐sectional electron microscopy and ab initio calculations. ABSTRACT Moiré superlattices formed at the interfaces
T. A. M. Ragib Shahriar   +13 more
wiley   +1 more source

Effect of electric field on the ultrasonic wave propagation velocity in oils

open access: yesArchives of Acoustics, 2014
A dielectric liquid in an external electric field exhibits variations in its physical properties as a result of deformational polarisation and orientational polarisation. Moreover, it undergoes volume deformation due to electrostriction.
A. SKUMIEL, M. ŁABOWSKI
doaj  

Electrospun Wood‐Derived Biopolymers as Electrodes in Electrochemical Energy Storage Technologies

open access: yesAdvanced Functional Materials, EarlyView.
Electrospinning transforms wood‐derived cellulose and lignin into architecturally defined, binder‐free carbon electrodes with tuneable porosity and functionality. This review shows how fibre design enables decoupled charge and mass transport, enhancing performance across battery systems, while identifying key challenges in spinnability, scalability ...
Michael W. Thielke   +3 more
wiley   +1 more source

Embedded Ferroelectric Nanoclusters Can Drive Polarization Reversal in a Non‐Ferroelectric Polar Film via the Proximity Effect

open access: yesAdvanced Functional Materials, EarlyView.
Ferroelectric nanoclusters create local internal fields in a normally non‐switchable polar film because of polarization mismatch at their interfaces. That field opposes polarization in the regions with larger polarization and reinforces polarization in the regions with smaller polarization.
Anna N. Morozovska   +5 more
wiley   +1 more source

STUDIES ON THE DIELECTRIC POLARISATION AND THE DIPOLE MOMENTS OF ENANTIOMERS

open access: yes, 1948
Dielectric poIarisations and dipole momenta of \(d\), \(d\) and \(dl\) forms of camphor borneol and menthol at different concentrations have been determined to addnce support for the Pasteur's principle of molecular dissymmetry and to investigate the nature of linkage in \(dl ...
ROOP CHAND SAHNEY   +2 more
openaire   +2 more sources

Numerical study of a wide incident angle- and polarisation-insensitive microwave metamaterial absorber based on a symmetric flower structure

open access: yesAIP Advances, 2019
In this study, we propose a wide incident angle- and polarisation-insensitive metamaterial absorber covered with structures comprising a metallic flower shape layer, a dielectric layer and a metallic ground plane.
Nguyen Thi Quynh Hoa   +4 more
doaj   +1 more source

Semiconducting Polymers Post‐Functionalized With Ureido‐Pyrimidinone for Robust Stretchable Transistors

open access: yesAdvanced Functional Materials, EarlyView.
The design of intrinsically robust stretchable semiconducting polymers was achieved through OTBS‐mediated post‐functionalization of PDPP2T side chains with UPy units, generating dual hydrogen‐bonding motifs comprising weaker urethane linkages and strong quadruple UPy interactions along the long alkyl side chain, which is crucial for achieving desirable
Dinda Bazliah   +7 more
wiley   +1 more source

Dielectric Polarisation of Alkylquinolines and Molecular Interaction in Solution

open access: yes, 1981
Department of Chemistry, University of Jodhpur, Jodhpur Manuscript received 19 February 1980, revised 13 October 1980, accepted 28 January 1981 Dielectric Polarisation of Alkylquinolines and Molecular Interaction in Solution.
A. N. SRIVASTAVA   +2 more
openaire   +1 more source

The Dirt Deposited on the Medium-Voltage Insulators Used in the Plasma Reactor and the Cylinder-Type Electrostatic Precipitator

open access: yesApplied Sciences
The plasma reactor and cylindrical-type electrostatic precipitator (PRESP), combined operation in one device, made in the metallic chimney of low-thermal power boilers (up to 50 kW) that burn wood, can be used in home applications.
Gabriel Nicolae Popa
doaj   +1 more source

The effects of crosslinking byproducts on the electrical properties of low density polyethylene

open access: yes, 2011
Crosslinked polyethylene (XLPE) is widely used for high voltage insulation in power transmission systems. However, it has been found that, after crosslinking with Dicumyl Peroxide (DCP), the crosslinking byproducts such as acetophenone, ?-methylstyrene ...
Hussin, Nuriziani
core   +1 more source

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