Detecting Fluid Movement and Isolation in Reservoir Core With Medical NMR Imaging Techniques

1989 ◽  
Vol 4 (02) ◽  
pp. 207-212 ◽  
Author(s):  
B.A. Baldwin ◽  
W.S. Yamanashi
Keyword(s):  
Imaging Techniques ◽  
Nmr Imaging ◽  
Fluid Movement

Characterization of Biomaterials with NMR

1990 ◽  
Vol 217 ◽  
Author(s):  
Leoncio Garrido ◽  
Bettina Pfleiderer ◽  
Jerome L. Ackerman ◽  
John Moore
Keyword(s):  
Chemical Shift ◽  
Mechanical Stress ◽  
Imaging Techniques ◽  
Relaxation Times ◽  
Nmr Imaging ◽  
Spin Lattice ◽  
Model Networks ◽  
Crosslink Densities

ABSTRACTSilicone based biomaterials are characterized with NMR. Bulk spin-lattice (T1) and spin-spin (T2) relaxation times are measured in polydimethylsiloxane (PDMS) model networks and various types of implants. The T2 results seem to indicate that crosslink densities of these biomaterials are lower than those of the PDMS model networks studied. 1H chemical shift NMR imaging techniques are developed to investigate the aging (e.g., migration of free polymer, rupture due to mechanical stress, etc.) of biomaterials in vivo.

Mid-Infrared, Raman and NMR Imaging of Flax

1998 ◽  
Vol 4 (S2) ◽  
pp. 844-845
Author(s):  
D. S. Himmelsbach ◽  
S. Khalili ◽  
G. R. Gamble ◽  
D. E. Akin
Keyword(s):  
Linum Usitatissimum ◽  
Imaging Techniques ◽  
Laser Source ◽  
Nmr Imaging ◽  
Mid Infrared ◽  
Flax Fibers ◽  
Raman Microprobe ◽  
Structural Nature ◽  
Ft Ir ◽  
Ft Raman

Multiple microspectroscopic imaging techniques have been employed to reveal the chemical and structural nature of flax (Linum usitatissimum L.) stem tissue, with the goal of finding the best technique by which to monitor retting processes for the production of linen fibers. Three of these techniques, which we have investigated for this purpose, are: mid-infrared (MIR), Raman and nuclear magnetic resonance (NMR) imaging. Initially, all three techniques were evaluated on the basis of their ability to reveal the nature of unretted flax stems. MIR imaging was found to be the most useful for this purpose. Thus, it was selected as the method of choice to follow retting processes to obtain flax fibers.A Fourier transform (FT)-IR spectrometer equipped with microscope was used to acquire the MTR images. A FT-Raman spectrometer that was equipped with a Raman microprobe and utilizing a 1064 nm laser source was used to collect the Raman images.

scholarly journals Titrations without the Additions: The Efficient Determination of pKa Values Using NMR Imaging Techniques

2018 ◽  
Vol 90 (6) ◽  
pp. 4160-4166 ◽  
Author(s):  
Matthew Wallace ◽  
Dave J. Adams ◽  
Jonathan A. Iggo
Keyword(s):  
Imaging Techniques ◽  
Nmr Imaging ◽  
Pka Values

Quantitative determination of porosity: A local assessment by NMR imaging techniques

1996 ◽  
Vol 14 (7-8) ◽  
pp. 919-921 ◽  
Author(s):  
G.C. Borgia ◽  
V. Bortolotti ◽  
P. Dattilo ◽  
P. Fantazzini ◽  
G. Maddinelli
Keyword(s):  
Quantitative Determination ◽  
Imaging Techniques ◽  
Nmr Imaging ◽  
Local Assessment

NMR imaging techniques and applications: A review

1982 ◽  
Vol 53 (9) ◽  
pp. 1319-1337 ◽  
Author(s):  
Paul A. Bottomley
Keyword(s):  
Imaging Techniques ◽  
Nmr Imaging
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