Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Probing Ganglia Dissolution and Mobilization in a Water-Saturated Porous Medium using MRI.

Johns1, Gladden

  • 1Department of Chemical Engineering, University of Cambridge, Pembroke Street, Cambridge, CB2 3RA, United Kingdom

Journal of Colloid and Interface Science
|April 18, 2000
PubMed
Summary

Magnetic resonance imaging (MRI) reveals how octanol ganglia dissolve in porous media. Ganglia shrink to a critical size, then mobilize and exit, explaining reduced numbers without shape changes.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Reply.

Journal of sleep research·2000
Same author

Search for direct CP violation in nonleptonic decays of charged Xi and lambda hyperons

Physical review letters·2000
Same author

Heterogeneous catalyst design using stochastic optimization algorithms

Journal of chemical information and computer sciences·2000
Same author

Absence of HinfI Restriction Abnormalities in Renal Oncocytoma Mitochondrial DNA.

Molecular urology·2000
Same author

Maasai Gummivory: Implications for Paleolithic Diets and Contemporary Health.

Current anthropology·2000
Same author

Observation of the nu(6) + nu(9) Band of Ketene via Resonant Coriolis Interaction with nu(8).

Journal of molecular spectroscopy·1999

Area of Science:

  • Porous media physics
  • Fluid dynamics
  • Chemical engineering

Background:

  • Understanding multiphase flow in porous media is crucial for various industrial processes.
  • Existing models often simplify the geometry and behavior of trapped non-aqueous phase liquids (NAPLs).

Purpose of the Study:

  • To investigate the pore-scale dissolution dynamics of octanol ganglia in a model porous medium.
  • To evaluate assumptions in current dissolution models using experimental data.
  • To characterize the geometric evolution of ganglia during dissolution.

Main Methods:

  • Magnetic resonance imaging (MRI) was employed to monitor octanol ganglia in a sphere-packing porous medium.
  • Geometric characteristics (volume, shape, surface area, cluster size) were tracked over time.

Related Experiment Videos

  • Pore-scale observations were correlated with macroscopic dissolution behavior.

    • Main Results:

    • Ganglia dissolution primarily reduced the total number of ganglia, with minimal changes to their shape or volume distribution mean.
    • A critical size, dependent on pore structure, was identified, below which ganglia are mobilized and removed.
    • The fractal dimension of ganglia was found to be 2.2-2.3, supporting Euclidean geometry assumptions in models.

    Conclusions:

    • The observed reduction in ganglia number is explained by mobilization after reaching a critical size.
    • The fractal nature of ganglia supports the use of Euclidean geometry in modeling.
    • Hydrocarbon ganglia predominantly exist as individual units within the pore structure.