Results 11 to 20 of about 26,456 (298)

Measurement of relative permittivity of LTCC ceramic at different temperatures

open access: yesAIP Advances, 2014
Devices based on LTCC (low-temperature co-fired ceramic) technology are more widely applied in high temperature environments, and the temperature-dependent properties of the LTCC material play an important role in measurements of the characteristics of ...
Qiulin Tan   +8 more
doaj   +2 more sources

Seasonal Variation and Age-related Changes in the Relative Permittivity of Concrete Bridge Decks on Korea Expressways

open access: yesInternational 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   +2 more sources

Estimation of Relative Permittivity of Printed Circuit Board with Fiber Glass Epoxy as Dielectric for UHF Applications

open access: yesTecnoLógicas, 2013
This paper presents the results of measuring relative permittivity of fiber glass printed circuit board (PCB’s), using a rectangular resonant cavity. The relative permittivity is presented as function of frequency.
Ronal D. Montoya-Montoya   +1 more
doaj   +3 more sources

Non-linear inversion for relative permittivity

open access: yes, 2009
The gradient method, Levenberg-Marquardt (LM) method, L₂ cooled roughness (CRL2) method and L₁ cooled roughness (CRL1) method are applied to the problem of recovering the relative permittivity structure of a dielectric object. The CRL1 method is a novel technique for the recovery of the relative permittivity structure of a dielectric object introduced ...
Lam, Kim
openaire   +2 more sources

Free Volume Effect via Various Chemical Structured Monomers on Adhesion Property and Relative Permittivity in Acrylic Pressure Sensitive Adhesives. [PDF]

open access: yesPolymers (Basel), 2020
Acrylic pressure-sensitive adhesives (PSAs) are used as fixatives between layers of a display. PSAs’ function is an important factor that determines the performance of the display. Of the various display types available, the touch screen panel (TSP)
Lee JH   +6 more
europepmc   +2 more sources

Deep-Learning-Based Method for Estimating Permittivity of Ground-Penetrating Radar Targets

open access: yesRemote Sensing, 2022
Correctly estimating the relative permittivity of buried targets is crucial for accurately determining the target type, geometric size, and reconstruction of shallow surface geological structures.
Hui Wang   +4 more
doaj   +1 more source

The Impact of Atmospheric Parameters on the Dielectric Permittivity Values of SikaBlock®-M150 and Other Rigid Polyurethane Foams Measured with a Capacitive One-Side Access Sensor

open access: yesSensors, 2022
A shortage of research on the impact of atmospheric parameters on the measured dielectric permittivity values of rigid polyurethane (PU) foams was identified.
Ilze Beverte   +3 more
doaj   +1 more source

Design and Fabrication of Modified SMA-Connector Sensor for Detecting Water Adulteration in Honey and Natural Latex

open access: yesApplied System Innovation, 2021
A detection system for water adulteration in honey is proposed. It consists of a modified SMA-connector sensor and a vector network analyzer. A modified SMA-connector sensor is applied to measure complex relative permittivity, electrical conductivity ...
Adisorn Nuan-On   +3 more
doaj   +1 more source

STUDY OF NEGATIVE REFRACTIVE INDEX IN Rb FOUR-LEVEL N-TYPE ATOMIC GAS MEDIUM

open access: yesTạp chí Khoa học Đại học Đà Lạt, 2022
In this work, we study the generation of a negative refractive index based on electromagnetically induced transparency (EIT) in a Rb four-level N-type atomic gas medium.
Huy Bang Nguyen   +4 more
doaj   +1 more source

Preparation and Electrical Properties of Insulation Paper Composed of SiO<sub>2</sub> Hollow Spheres

open access: yesEnergies, 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

Home - About - Disclaimer - Privacy