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Low-field NMR flow measurements in porous rocks

✍ Scribed by P.M. Singer; G. Leu; E. Fordham; Y.-Q. Song; P.N. Sen

Publisher: Elsevier Science
Year: 2007
Tongue: English
Weight: 80 KB
Volume: 25
Category: Article
ISSN: 0730-725X
DOI: 10.1016/j.mri.2007.01.099

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✦ Synopsis

high anisotropy. Both DDIF and PSVRz show the same trend, whereas PSVRy saturates above YS ~7 MPa. Quantitative results derived from the ACT images, such as the mean intercept length [10], showed similar trends to the MR results. Conventional models of bone remodeling [10] suggest a single relationship between anisotropy and strength. Our data show two regimes of bone strength with different structural properties (e.g., anisotropy). The anisotropy was found to remain constant for the weaker samples and to grow sharply with strength for the stronger ones. This suggests that the bone growth mechanism might substantially differ in the two regimes.

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