Results 311 to 320 of about 3,811,787 (369)

Converse flexoelectricity with relative permittivity gradient

Applied Physics Letters, 2019
Flexoelectricity represents the linear relationship between the strain/electric gradient field and the induced electric polarization/mechanical stress in dielectric materials. This electro-mechanical behavior is important for prospective applications due to its size effect and other advantages. In this work, a converse flexoelectric effect is generated
Minglong Xu, Tonghui Wu, Xin Wen, Shengping Shen, Shuwen Zhang, Shuwen Zhang, Liu Kaiyuan   +6 more
openaire   +3 more sources

Improving Relative Permittivity and Suppressing Dielectric Loss of Triboelectric Layers for High-Performance Wearable Electricity Generation.

ACS Nano, 2022
High relative permittivity and low dielectric loss are two desired parameters of a triboelectric layer to enhance its mechanical-to-electrical energy conversion efficiency in a triboelectric nanogenerator (TENG). However, the elevated permittivity of the
Zehua Peng, Xiao Xiao, J. Song, A. Libanori, C. Q. Lee, Keda Chen, Yuan Gao, Yunsheng Fang, Juan Wang, Zuankai Wang, Jun Chen, M. Leung   +11 more
semanticscholar   +1 more source

Design and Analysis of Dual-Band Implantable Antennas Based on Effective Relative Permittivity Calculation

IEEE Transactions on Antennas and Propagation, 2021
This article presents the design and analysis of dual-band implantable antennas based on effective relative permittivity calculation. First, the effective relative permittivity for a microstrip antenna inside lossy tissue is analyzed, helping establish ...
Li‐jie Xu, Z. Chu, Lei Zhu, Jin-Peng Xu, Z. Duan   +4 more
semanticscholar   +1 more source

Effects of relative permittivity on primary and secondary streamers in atmospheric pressure dielectric barrier discharge

Journal of Physics D: Applied Physics, 2021
In this study, a two-dimensional simulation of atmospheric-pressure streamer discharge with a dielectric on the cathode was conducted to investigate the effects of relative permittivity on primary and secondary streamer characteristics.
Keigo Yoshida, A. Komuro, A. Ando
semanticscholar   +1 more source

Manipulating Relative Permittivity for High-Performance Wearable Triboelectric Nanogenerators.

Nano letters (Print), 2020
As the world marches into the era of the Internet of Things (IoT), the practice of human health care is on the cusp of a revolution, driven by an unprecedented level of personalization enabled by a variety of wearable bioelectronics.
Long Jin, Xiao Xiao, W. Deng, Ardo Nashalian, Daren He, Vidhur Raveendran, Cheng Yan, Hai Su, Xiang Chu, Tao Yang, Wen Li, Weiqing Yang, Jun Chen   +12 more
semanticscholar   +1 more source

Influence of Salt Concentration on Hydrated Polymer Relative Permittivity and State of Water Properties

, 2021
Little is known about how aqueous electrolyte exposure affects hydrated polymer relative permittivity and state of water properties.
Kevin Chang, Hongxia Luo, Geoffrey M. Geise   +2 more
semanticscholar   +1 more source

CSRR Based Sensors for Relative Permittivity Measurement With Improved and Uniform Sensitivity Throughout [0.9–10.9] GHz Band

IEEE Sensors Journal, 2020
This paper proposes miniaturized, lightweight and high sensitivity planar metamaterial based sensors for relative permittivity measurement within [0.9–10.9] GHz band.
Salem A. Alotaibi, Yepu Cui, M. Tentzeris   +2 more
semanticscholar   +1 more source

Determination of the Relative Permittivity of Acetylcholinesterase

The Journal of Physical Chemistry Letters, 2009
For a complete understanding of biomolecular functions, electrostatic interactions have to be characterized. These interactions are highly dependent on the relative permittivity of the surrounding medium, including the interior of proteins and binding site regions. However, determination of the relative permittivity is not trivial.
Angela S. F. Ramos, Simone Techert
openaire   +2 more sources

Reliable Method for Fabricating Tissue‐Mimicking Materials With Designated Relative Permittivity and Conductivity at 128 MHz

Bioelectromagnetics, 2020
Artificial materials that can simultaneously mimic the relative permittivity and conductivity of various human tissues are usually used in medical applications.
Guanhua Deng, L. Cai, Jian Feng, Song Duan, Ping Zhang, S. X. Xin   +5 more
semanticscholar   +1 more source