Results 31 to 40 of about 118,060 (323)
International Journal of Concrete Structures and Materials, 2018 The purposes of this study were to investigate the seasonal variations in the relative permittivity of actual concrete bridge decks of various ages on Korea expressways, and to propose a practical way to calibrate two critical effects, to assess the ...
Ji-Young Rhee +3 more
doaj +1 more source
Determination of the Permittivity of Transmission Lines at Milli-Kelvin Temperatures
IEEE Access, 2023 Many quantum technologies rely heavily on propagation of RF and microwave signals through devices at cryogenic temperatures, and detailed understanding of materials and signal propagation is therefore key to improving the performance of quantum circuits.
Manoj Stanley +6 more
doaj +1 more source
Imaging the Permittivity of Thin Film Materials by Using Scanning Capacitance Microscopy
Applied Sciences, 2022 Recently, great advances had been made by using scanning probe microscopy (SPM) to quantify the relative permittivity of thin film materials on a nanometer scale.
Yongzhen Luo +5 more
doaj +1 more source
Reflectionless Sharp Bends and Corners in Waveguides Using Epsilon-Near-Zero Effects [PDF]
, 2008 Following our recent theoretical and experimental results that show how zero-permittivity metamaterials may provide anomalous tunneling and energy squeezing through ultranarrow waveguide channels, here we report an experimental investigation of the ...
Alu, Andrea +3 more
core +4 more sources
Preparation and Electrical Properties of Insulation Paper Composed of SiO<sub>2</sub> Hollow Spheres
Energies, 2012 SiO<sub>2</sub> hollow spheres and low relative permittivity insulation paper handsheets composed of these SiO<sub>2</sub> hollow spheres with different weight percentages were successfully prepared. Low-content SiO<sub>2<
Chao Tang +5 more
doaj +1 more source
Relative permittivity in the electrical double layer from nonlinear optics [PDF]
The Journal of Chemical Physics, 2018 Second harmonic generation (SHG) spectroscopy has been applied to probe the fused silica/water interface at pH 7 and the uncharged 11¯02 sapphire/water interface at pH 5.2 in contact with aqueous solutions of NaCl, NaBr, NaI, KCl, RbCl, and CsCl as low as several 10 μM. For ionic strengths up to about 0.1 mM, the SHG responses were observed to increase,
Mavis D. Boamah +3 more
openaire +3 more sources
Open Ceramics, 2023 In this work, the effect of changing the Li2MoO4-SrTiO3 (LMO-ST) compositional proportion (1–100 wt%) on the microstructure, dielectric properties, and relative density of LMO-ST composites fabricated at room temperature was investigated.
Nina Kuzmić +4 more
doaj +1 more source
Distortion of electric field homogeneity between two thin toroidal electrodes by a dielectric sphere [PDF]
Serbian Journal of Electrical Engineering, 2022 We assess the influence of a radius and a relative permittivity of an isotropic dielectric sphere on electric field homogeneity. The homogenous electric field is generated using two thin toroidal electrodes, charged by equal charges of opposite ...
Mančić Žaklina J. +2 more
doaj +1 more source
Materials & Design, 2021 This study introduces a fused filament fabrication (FFF) process for manufacturing complex-structured asteroid analogue objects to be applied in tomographic microwave radar measurements and inversion studies. We describe an approach to control the volume
Liisa-Ida Sorsa +5 more
doaj +1 more source
Dielectric properties of thin insulating layers measured by Electrostatic Force Microscopy [PDF]
, 2010 In order to measure the dielectric permittivity of thin insulting layers, we developed a method based on electrostatic force microscopy (EFM) experiments coupled with numerical simulations.
Alegría, Angel +8 more
core +2 more sources