Results 131 to 140 of about 1,953,363 (269)

Local and Global relations between the number of contacts and density in monodisperse sphere packs

open access: yes, 2006
The topological structure resulting from the network of contacts between grains (\emph{contact network}) is studied for large samples of monosized spheres with densities (fraction of volume occupied by the spheres) ranging from 0.59 to 0.64.
Aste T   +5 more
core   +2 more sources

Approaches to 3D printing teeth from X‐ray microtomography

open access: yesJournal of Microscopy, 2018
Artificial teeth have several advantages in preclinical training. The aim of this study is to three‐dimensionally (3D) print accurate artificial teeth using scans from X‐ray microtomography (XMT).
A. J. Cresswell-Boyes   +4 more
semanticscholar   +1 more source

Small is the New Large: Demonstration of how Microanalyses Elucidate Large‐Scale CO2 Uptake Through Mineralization

open access: yesAdvanced Sustainable Systems, Volume 10, Issue 2, February 2026.
Imaging techniques like X‐ray microcomputed tomography and electron microscopy are integrated to understand the CO2 mineralization process at the pore‐scale. These techniques are used to characterise the reaction progression in basalt. They increase the reliability of reactive transport modeling and consequently improve the CO2 storage capacity ...
Faisal W. K. Khudhur   +2 more
wiley   +1 more source

The Imaging of Dynamic Multiphase Fluid Flow Using Synchrotron-Based X-ray Microtomography at Reservoir Conditions

open access: yesTransport in Porous Media, 2015
Fast synchrotron-based X-ray microtomography was used to image the injection of super-critical $$\hbox {CO}_{2}$$CO2 under subsurface conditions into a brine-saturated carbonate sample at the pore-scale with a voxel size of $$3.64\,\upmu \hbox {m}$$3 ...
M. Andrew   +3 more
semanticscholar   +1 more source

Density of Sodium Aluminosilicate Melts Along the NaAlSiO4‐NaAlSi3O8 Join at High Pressure: In‐Situ Measurements and Re‐Calibration of a Modified Hard‐Sphere Equation of State For Silicate Melts

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 2, February 2026.
Abstract Silicate melts play a crucial role in planetary differentiation. The density contrast between silicate melts and the surrounding solid residue exerts a primary control on many magmatic processes. However, direct measurements of the density of silicate melts at high pressure (P) and temperature (T) conditions remain challenging, particularly ...
Man Xu   +6 more
wiley   +1 more source

Trait‐based responses of soil nematode communities to land use and climate change

open access: yesJournal of Applied Ecology, Volume 63, Issue 2, February 2026.
By linking nematode traits to soil moisture and soil pore structure, our findings show that the effect of future climate on nematode body traits is land‐use dependent, likely reflecting stronger bottom‐up or top‐down regulation in croplands and grasslands, respectively. This trait‐based approach offers a practical framework for using nematode body size
Xiaoli Yang   +6 more
wiley   +1 more source

X-ray Computed Microtomography for the Inspection of Flexible Risers

open access: yesBrazilian Journal of Radiation Sciences
The integrity of flexible risers, essential for transporting oil from wells to platforms, is often compromised by residual gases such as CO2 and H2S, which cause fatigue through corrosion.
Adriana José da Penha Moreira   +4 more
doaj   +1 more source

X-ray microtomography in herpetological research: a review

open access: yes, 2018
Herpetological research, like any other (palaeo)biological science, relies heavily on accurate data collection, particularly visualisation and quantification of anatomical features.
C. Broeckhoven, A. Plessis
semanticscholar   +1 more source

Permeability Enhancement by Slow Faulting Under High Pore Fluid Pressure

open access: yesGeophysical Research Letters, Volume 53, Issue 2, 28 January 2026.
Abstract The morphology of fault zones formed by slow faulting is markedly different from that of brittle faulting. In this study, we quantify the three‐dimensional (3D) pore distribution and permeability structures of two rock samples that have been deformed to failure by slow and brittle faulting, respectively.
Tommaso Mandolini   +3 more
wiley   +1 more source

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