| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Chapman, David
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2024Self-swabbing versus assisted swabbing for viral detection by qRT-PCR: the experience from SARS-CoV-2 based on a meta-analysis of six prospectively designed evaluations conducted in a UK settingcitations
- 2021Ultra-high speed X-ray imaging of dynamic fracturing in cementitious materials under impact ; Imagerie aux rayons X ultra-rapide de la fracturation dynamique dans des matériaux cimentaires sous impactcitations
- 2020Experimental investigation into the effects of cast-iron pipe corrosion on GPR detection performance in clay soilscitations
- 2017Unique Insight into the Seasonal Variability of Geophysical Properties of Field Soils: Practical Implications for Near Surface Investigationscitations
- 2017Seasonal variations measured by TDR and GPR on an anthropogenic sandy soil and the implications for utility detectioncitations
- 2014Factors affecting soil permittivity and proposals to obtain gravimetric water content from time domain reflectometry measurementscitations
- 2013Impact of millimeter-size silicon microchips on the mechanical properties of polymer samples tested under flexural bending, long-term creep,and impact conditionscitations
- 2012Construction and calibration of a field TDR monitoring stationcitations
- 2011Pipeline Engineering in the Ground: the impact of Ground Conditions on Pipeline Condition and Maintenance Operationscitations
- 2010Electromagnetic Properties of the Ground: Part II - The Properties of Two Selected fine-Grained Soilscitations
- 2010Electromagnetic Properties of the Ground: Part 1 - Fine-Grained Soils at the Liquid Limitcitations
- 2008Broadband apparent permittivity measurement in dispersive soils using quarter-wavelength analysiscitations
Places of action
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article
Broadband apparent permittivity measurement in dispersive soils using quarter-wavelength analysis
Abstract
Time-domain reflectometry (TDR) has, since the early 1980s, become a widely used and robust method for measuring the electromagnetic properties of soils. Although it allows use of relatively simple probes and measurement equipment that free users from complex analysis of small soil samples in the laboratory, it provides little information on the dispersive nature of fine-grained soils. Therefore, we developed a quarter-wavelength analysis (QWA) methodology that allows apparent permittivity spectra to be obtained for soils, while retaining the same range of cells and probes and the simplicity of data analysis associated with TDR. We tested the technique on clay soils across a wide water content range and found that it provided useful data for frequencies ranging from approximately 100 MHz to >1 GHz-the accuracy being considered no worse than two units of apparent permittivity. The results show that the methodology is capable of providing broadband dispersion data that give significantly greater detail on soil electromagnetic properties than can be expected from single-frequency TDR data. This has a number of important advantages including the potential to provide accurate water content measurements in clay soils, a means to extend TDR soil monitoring data, and the opportunity to validate research into the measurement frequency associated with simple TDR measurements and time- to frequency-domain inversions.