Results 1 to 10 of about 114,163 (234)

Broadband Measurements of Soil Complex Permittivity [PDF]

open access: yesSensors, 2023
Agriculture is a major consumer of freshwater and is often associated with low water productivity. To prevent drought, farmers tend to over-irrigate, putting a strain on the ever-depleting groundwater resources.
Justin Stellini   +7 more
doaj   +5 more sources

Complex Permittivity of Ex-Vivo Human, Bovine and Porcine Brain Tissues in the Microwave Frequency Range [PDF]

open access: yesDiagnostics, 2022
Accurate knowledge about the dielectric properties of biological tissues in the microwave frequency range may lead to advancement of biomedical applications based on microwave technology.
Anđela Matković   +3 more
doaj   +2 more sources

Complex Permittivity Characterization of Liquid Samples Based on a Split Ring Resonator (SRR) [PDF]

open access: yesSensors, 2021
A complex permittivity characterization method for liquid samples has been proposed. The measurement is carried out based on a self-designed microwave sensor with a split ring resonator (SRR), the unload resonant frequency of which is 5.05 GHz.
Jialu Ma   +5 more
doaj   +2 more sources

The Effect of Freezing and Thawing on Complex Permittivity of Bovine Tissues [PDF]

open access: yesSensors, 2022
The aim of this study was to investigate how the freezing and thawing of biological tissues affect their complex permittivity in the microwave frequency range from 0.5 MHz to 18 GHz.
Anđela Matković, Antonio Šarolić
doaj   +2 more sources

Integrating Complex Permittivity Measurements with Histological Analysis for Advanced Tissue Characterization [PDF]

open access: yesSensors
We developed a measurement setup and protocol reliably relating complex permittivity measurements with tissue characterization and specific histological features. We measured 148 fresh human tissue samples across 14 tissue types at 51 frequencies ranging
Sandra Lopez-Prades   +4 more
doaj   +2 more sources

Application of Artificial Neural Networks for Accurate Determination of the Complex Permittivity of Biological Tissue [PDF]

open access: yesSensors, 2020
Medical devices making use of radio frequency (RF) and microwave (MW) fields have been studied as alternatives to existing diagnostic and therapeutic modalities since they offer several advantages.
Julian Bonello   +4 more
doaj   +2 more sources

Complex permittivity of a biased superlattice [PDF]

open access: yesJournal of Applied Physics, 2007
Intersubband response in a superlattice subjected to a homogeneous electric field (biased superlattice with equipopulated levels) is studied within the tight-binding approximation, taking into account the interplay between homogeneous and inhomogeneous ...
Aceituno, P.   +2 more
core   +2 more sources

Determination of Complex Permittivity of Low-Loss Materials From Reference-Plane Invariant Transmission/Reflection Measurements [PDF]

open access: goldIEEE Access, 2019
In this paper, a novel method is proposed to determine unique and stable relative complex permittivity of low-loss materials from the transmission/reflection (TR) measurements, though the positions of the materials under test are unknown.
Chuang Yang, Hui Huang
doaj   +2 more sources

Complex Relative Permittivity Measurement Techniques [PDF]

open access: yesWarasan Witthayasat Lae Theknoloyi Mahawitthayalai Mahasarakham, 2019
This article presents a review of the techniques for measuring complex relative permittivity and also explains basic properties for understanding the principle of complex relative permittivity measurement.
Nawarat Piladaeng
doaj   +1 more source

Microwave Complex Permittivity of Yttria-Stabilized Zirconia

open access: yesIEEE Open Journal of Instrumentation and Measurement, 2023
The complex permittivity of 8-mol yttria-stabilized zirconia (8-YSZ) in powder and sintered (i.e., solid) forms were measured from 32 to 40 GHz using a circular waveguide probe.
Anna Case, Aaron Barvincak, Reza Zoughi
doaj   +2 more sources

Home - About - Disclaimer - Privacy