| 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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Chassagne, Claire
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Topics
Publications (12/12 displayed)
- 2022Tuning the rheological properties of kaolin suspensions using biopolymerscitations
- 2022Rheology of Flocculated Suspension in Turbidity Currents
- 2022Effects of organic matter degradation in cohesive sedimentcitations
- 2022From fundamentals to implementation of yield stress for nautical bottom : case study of the Port of Hamburgcitations
- 2022Why do settling and yield stress of mud differ in european ports?
- 2022From fundamentals to implementation of yield stress for nautical bottom: Case study of the Port of Hamburgcitations
- 2021Rheology of Mudcitations
- 2020Using in situ density and strength measurements for sediment maintenance in ports and waterwayscitations
- 2020Yield stress measurements of mud sediments using different rheological methods and geometriescitations
- 2019Is density enough to predict the rheology of natural sediments?citations
- 2019Rheological analysis of mud from Port of Hamburg, Germanycitations
- 2017Dielectric spectroscopy of granular material in an electrolytesolution of any ionic strengthcitations
Places of action
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article
Dielectric spectroscopy of granular material in an electrolytesolution of any ionic strength
Abstract
The low-frequency dielectric spectroscopy of granular material, where the porosity is representative for sands and sandstones, is until now always modeled using theories based on the work of Schwartz (1962). The theory for the low-frequency dielectric spectroscopy of suspensions, on the other hand, has been developed much further over the last decades both numerically and analytically.<br/><br/>In this article new analytical expressions for the complex conductivity of granular material, such as sands and sandstones in an electrolyte solution, are presented. These expressions have been derived using the theories developed for suspensions. We show that the new expressions enable to predict the measured complex conductivity of various granular material, such as packed glass beads, sands and sandstones. Because of the typical grain size of sand and sandstone particles, for any ionic strength the double layer is much thinner that the particle size. Contrary to existing theories for granular materials, the expressions we derived are valid for any ionic strength and no adjustable parameters are required.<br/><br/>The grains are represented by monodispersed charged spheres. We also discuss how the expressions can be adapted in the case the particles are not spherical and the grains are polydisperse.<br/>