| MRI investigation of granular interface rheology using a new cylinder shear apparatus. | |
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MedLine Citation:
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PMID: 20332064 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The rheology of granular materials near an interface is investigated through proton magnetic resonance imaging. A new cylinder shear apparatus has been inserted in the magnetic resonance imaging device, which allows the control of the radial confining pressure exerted by the outer wall on the grains and the measurement of the torque on the inner shearing cylinder. A multi-layer velocimetry sequence has been developed for the simultaneous measurement of velocity profiles in different sample zones, while the measurement of the solid fraction profile is based on static imaging of the sample. This study describes the influence of the roughness of the shearing interface and of the transverse confining walls on the granular interface rheology. |
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Authors:
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Pascal Moucheront; François Bertrand; Georg Koval; Laurent Tocquer; Stéphane Rodts; Jean-Noël Roux; Alain Corfdir; François Chevoir |
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Publication Detail:
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Type: Journal Article Date: 2010-03-23 |
Journal Detail:
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Title: Magnetic resonance imaging Volume: 28 ISSN: 1873-5894 ISO Abbreviation: Magn Reson Imaging Publication Date: 2010 Jul |
Date Detail:
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Created Date: 2010-07-12 Completed Date: 2010-10-20 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8214883 Medline TA: Magn Reson Imaging Country: Netherlands |
Other Details:
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Languages: eng Pagination: 910-8 Citation Subset: IM |
Copyright Information:
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Copyright 2010 Elsevier Inc. All rights reserved. |
Affiliation:
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Université Paris-Est, UMR Navier (LCPC-ENPC-CNRS), Champs sur Marne, France. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Magnetic Resonance Imaging
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instrumentation*,
methods Mustard Plant Rheology / methods* Seeds Stress, Mechanical* |
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