Results 21 to 30 of about 957 (203)

Broadband Dielectric Spectroscopy with a Microwave Ablation Antenna

Sensors, 2023
Microwave ablation is a technique used to treat tumorous tissue. Its clinical use has been greatly expanding in the last few years. Because the design of the ablation antenna and the success of the treatment greatly depend on the accurate knowledge of ...
Klementina Vidjak, Carolin Hessinger, Marta Cavagnaro   +2 more
doaj   +1 more source

Electromagnetic characterization of transparent conducting thin films using two‐port flange coaxial probe and thin‐film transfer matrix method

IET Microwaves, Antennas & Propagation, 2021
An efficient method to determine the electromagnetic characteristics of transparent conducting oxide (TCO) thin films is presented herein. When a two‐port flange coaxial probe is used for electromagnetic characterization, it is important to note that ...
Saeid Sadat, Mehrdad Shokooh‐Saremi, Mir Mojtaba Mirsalehi   +2 more
doaj   +1 more source

Novel Sensing Technique for Stem Cells Differentiation Using Dielectric Spectroscopy of Their Proteins

Sensors, 2023
Dielectric spectroscopy (DS) is the primary technique to observe the dielectric properties of biomaterials. DS extracts complex permittivity spectra from measured frequency responses such as the scattering parameters or impedances of materials over the ...
Young Seek Cho, So-Jung Gwak
doaj   +1 more source

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

Sensors, 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, Andrea Demarco, Iman Farhat, Lourdes Farrugia, Charles V. Sammut   +4 more
doaj   +1 more source

Measurements of electric properties using an open-ended probe blocked by a non-conducting foil

Results in Physics, 2016
An open-ended coaxial probe separated from the investigated medium by a thin non-conducting layer (foil) is proposed for making dielectric permittivity measurements within the RF range.
Alicja Wolny, Kazimierz Orzechowski, Marek Rudowski   +2 more
doaj   +1 more source

Microwave Characterization of Hydrophilic and Hydrophobic Plant Pathogenic Fungi Using Open-Ended Coaxial Probe

IEEE Access, 2019
Plant diseases have a direct impact on agricultural food production. The time required to detect the pathogen plays a crucial role to minimize the fungal-induced disease damage in crops.
Mousa I. Hussein, Dwija Jithin, Indu Jiji Rajmohan, Arjun Sham, Esam Eldin M. A. Saeed, Synan F. AbuQamar   +5 more
doaj   +1 more source

Combined Thickness and Permittivity Measurement of Thin Layers with Open-Ended Coaxial Probes

Sensors, 2019
This paper presents a method to simultaneously determine the thickness and permittivity of thin layers from multi-frequency reflection coefficient measurements using an open-ended coaxial probe.
Kjetil Folgerø, Kjetil Haukalid, Jan Kocbach, Andreas Soto Peterson   +3 more
doaj   +1 more source

Characterisation of pore fluid salinity dependent evaporative dewatering of kaolin using dielectric spectroscopy

Journal of Rock Mechanics and Geotechnical Engineering, 2020
Realising the importance of pore fluid salinity on the dewatering behaviour of fine-grained porous systems, the present study systematically investigated such impacts on temporal moisture dynamics of kaolin subjected to evaporative dewatering. A detailed
Partha Narayan Mishra, Thierry Bore, Alexander Scheuermann, Ling Li   +3 more
doaj   +1 more source

A Small and Slim Coaxial Probe for Single Rice Grain Moisture Sensing

Sensors, 2013
A moisture detection of single rice grains using a slim and small open-ended coaxial probe is presented. The coaxial probe is suitable for the nondestructive measurement of moisture values in the rice grains ranging from from 9.5% to 26%.
Zulkifly Abbas, Jamaliah Salleh, Li Ling You, Hou Kit Mun, Kok Yeow You   +4 more
doaj   +1 more source

Evaluation of Apple Maturity with Two Types of Dielectric Probes

Sensors, 2018
The observed dielectric spectrum of ripe apples in the last period of shelf-life was analyzed using a multipole dielectric relaxation model, which assumes three active relaxation processes: primary α-process (water relaxation) and two secondary processes
Marcin Kafarski, Andrzej Wilczek, Agnieszka Szypłowska, Arkadiusz Lewandowski, Piotr Pieczywek, Grzegorz Janik, Wojciech Skierucha   +6 more
doaj   +1 more source