Results 141 to 150 of about 113,538 (326)

Using the Probability Density Function-Based Channel-Combination Bloch–Siegert Method Realizes Permittivity Imaging at 3T

open access: yesBioengineering
Magnetic resonance electrical properties tomography (MR EPT) can retrieve permittivity from the B1+ magnitude. However, the accuracy of the permittivity measurement using MR EPT is still not ideal due to the low signal-to-noise ratio (SNR) of B1 ...
Jiajia Wang   +2 more
doaj   +1 more source

Relative permittivity in stern and diffuse layers.

open access: yesActa chimica Slovenica, 2014
Stern layer and outer Helmholtz plane (i.e. the distance of closest approach) are considered within electric double layer models, where the orientational ordering of water dipoles is explicitly taken into account. It is shown that permittivity of the Stern layer is not independent of the surface charge density as it is frequently assumed in different ...
Ekaterina, Gongadze, Aleš, Iglič
openaire   +1 more source

Advancements in Carbon‐Based Piezoelectric Materials: Mechanism, Classification, and Applications in Energy Science

open access: yesAdvanced Materials, EarlyView.
Carbon‐based piezoelectric materials are systematically categorized based on their structural and functional properties. The mechanisms of stress‐induced charge transfer are elucidated, and their applications are explored across three key domains: piezoelectric catalysis for energy conversion and environmental remediation, piezoelectric biomedical ...
Mude Zhu   +3 more
wiley   +1 more source

Dielectric Hybrid Optimization Model Based on Crack Damage in Semi-Rigid Base Course

open access: yesBuildings
To accurately predict the relative permittivity of cement-stabilized base materials, a study on the dielectric mixing model for cracked base materials was conducted.
Zhiyong Huang   +4 more
doaj   +1 more source

Nonlinear Optical Response in Layer‐Stacked Gallenene with Ferroelectric Polarization

open access: yesAdvanced Materials, EarlyView.
Liquid metals are utilized in applications ranging from soft robotics to conductive inks, owing to their physical properties providing distinct mechanical, electrical, and thermal advantages. This work uses classical material science techniques to characterize ferroelectric polarization in supercooled liquid gallium and utilizes second harmonic ...
Muhammad Yunusa   +17 more
wiley   +1 more source

Wireless Acousto‐Piezoelectric Conduit with Aligned Nanofibers for Neural Regeneration

open access: yesAdvanced Materials, EarlyView.
An ultrasound‐driven, highly aligned piezoelectric nanofiber‐based nerve guidance conduit (APNF‐NGC) designed for effective peripheral nerve repair has been demonstrated in this study. Featuring aligned topology, cell‐adhesive surfaces, and an axial electric field, the APNF‐NGC collectively promotes significant nerve regeneration.
Sera Jeon   +8 more
wiley   +1 more source

Tapered CSRR-Based Sensor for Relative Permittivity Measurement With Application to Biomedical Microfluidic Sensing

open access: yesIEEE Access
This paper proposes miniaturized, lightweight and ultrasensitive planar metamaterial sensor for relative permittivity measurement of nondispersive materials.
Salem A. Alotaibi   +2 more
doaj   +1 more source

Two‐Stage Bipolaron Formation in Molecularly Doped Conjugated Polymers

open access: yesAdvanced Materials, EarlyView.
This work investigates bipolaron formation in 2,3,5,6‐tetrafluoro‐7,7,8,8‐tetracyanoquinodimethane (F4TCNQ)‐doped conjugated polymer P(g32T‐T) films with glycol sidechains at two stages of both low and high doping levels. At the early stage, bipolarons mainly form from double doping, enhancing structural ordering, and carrier transport.
Rui Su   +17 more
wiley   +1 more source

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