Results 51 to 60 of about 9,683 (289)

A High-Resolution Leaky Coaxial Cable Sensor Using a Wideband Chaotic Signal

open access: yesSensors, 2018
A high-resolution leaky coaxial cable (LCX) sensor for perimeter intrusion detection is proposed and experimentally demonstrated. In our proposed sensor system, a wideband Boolean-chaos signal is used as the probe signal, and a pair of leaky coaxial ...
Hang Xu   +6 more
doaj   +1 more source

Coaxial probe in circular cylindrical cavity

open access: yesElectronics Letters, 2006
Scattering from a conducting circular cylindrical cavity fed by a coaxial probe is studied. A fast convergent series solution is obtained by utilising the results of monopole radiation in parallel plates. Numerical results agree well with other existing results.
Kim, JH, Eom, HJ Eom, Hyo Joon, Park, MY
openaire   +2 more sources

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

open access: yesJournal 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   +3 more
doaj   +1 more source

Permittivity-Based Water Content Calibration Measurement in Wood-Based Cultural Heritage: A Preliminary Study

open access: yesSensors, 2022
In this work, the dielectric permittivity of four kinds of wood (Fir, Poplar, Oak, and Beech Tree), used in Italian Artworks and structures, was characterized at different humidity levels.
Livio D’Alvia   +3 more
doaj   +1 more source

Cost-Effective Open-Ended Coaxial Technique for Liquid Food Characterization by Using the Reflection Method for Industrial Applications

open access: yesSensors, 2022
A cheap technique based on an open-ended coaxial probe together with a vector network analyzer was set up. The vector network analyzer NanoVNA, a very tiny handheld device, is the affordable component that gives the instrumental chain a cost-effective ...
Eleonora Iaccheri   +2 more
doaj   +1 more source

Technique of Coaxial Frame in Reflection for the Characterization of Single and Multilayer Materials with Correction of Air Gap

open access: yesInternational Journal of Antennas and Propagation, 2014
Techniques based on fixture probes in reflection are used in microwave reflectometry as a novel diagnostic tool for detection of skin cancers, for complex permittivity measurements on liquid samples and oil shale, and for complex dielectric permittivity
Zarral Lamia   +2 more
doaj   +1 more source

Influence of an Oxygen‐Free Atmosphere on Diamond‐Single‐Grain Scratching of Ti–6Al–4V

open access: yesAdvanced Engineering Materials, EarlyView.
Single‐grain scratching of Ti–6Al–4V is investigated under controlled, oxygen‐free, and ambient atmospheres using a novel experimental setup with in situ high‐speed imaging. The approach enables direct observation of chip formation and adhesion under suppressed oxidation.
Berend Denkena   +2 more
wiley   +1 more source

Investigation of the plasma column evolution and dynamics in the PW-7 plasma accelerator

open access: yesPhysical Sciences and Technology, 2023
In this paper the results of measurements of the azimuthal component distribution of the plasma column magnetic field in the coaxial plasma accelerator PW-7 are presented.
A. B. Tazhen   +4 more
doaj  

Langmuir Probe Diagnostics with Optical Emission Spectrometry (OES) for Coaxial Line Microwave Plasma

open access: yesApplied Sciences, 2020
The Langmuir probe is a feasible method to measure plasma parameters. However, as the reaction progresses in the discharged plasma, the contamination would be attached to the probe surface and lead to a higher incorrect electron temperature.
Chi Chen   +5 more
doaj   +1 more source

Resonant cavity method for broadband dielectric measurements [PDF]

open access: yes, 1987
The project investigates the Cavity Perturbation Method (CRM) and design of a coaxial resonator covering a wide frequency band from 2.5 to 11.5 GHz. Using the published analyses for coaxial cavities, original theoretical analysis of Cavity Perturbation ...
Muhammad-Ahmad, Makki El-Tayyid
core  

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