scholarly journals Two dimensional NMR of liquids and oriented molecules

1987 ◽  
Author(s):  
M. Gochin
Keyword(s):  
Two Dimensional ◽  
Oriented Molecules

Two-dimensional NMR spectra of oriented molecules

1980 ◽  
Vol 37 (2) ◽  
pp. 349-351
Author(s):  
C.L. Khetrapal ◽  
Anil Kumar ◽  
A.C. Kunwar ◽  
P.C. Mathias ◽  
K.V. Ramanathan
Keyword(s):  
Nmr Spectra ◽  
Two Dimensional ◽  
Oriented Molecules

Automatic determination of diffuse-peak positions and the centre of a diffraction pattern

1999 ◽  
Vol 32 (2) ◽  
pp. 332-335 ◽  
Author(s):  
S. J. Wilkinson ◽  
D. W. L. Hukins
Keyword(s):  
Annulus Fibrosus ◽  
Gaussian Function ◽  
Two Dimensional ◽  
X Ray Diffraction ◽  
X Ray ◽  
Oriented Molecules ◽  
Beam Stop ◽  
Diffraction Patterns ◽  
Good Agreement

Correlation with a two-dimensional Gaussian function was used to locate the positions of diffuse peaks in X-ray diffraction patterns. The centre of a pattern was defined as the centroid of the image of the undeflected beam, found by convolution with a two-dimensional Gaussian function. These methods were implemented using the IDL programing language. They were tested on diffraction patterns from systems containing oriented molecules of the protein collagen: collagen tape, elastoidin spicules and annulus fibrosus of intervertebral disc. Specimens were dusted with quartz to calibrate the diffraction patterns. These patterns were recorded on film, using a semi-transparent beam stop to obtain an image of the undeflected beam, and digitized at a resolution of 105 µm. Intermolecular spacings, calculated from the distance between a peak and the centre of a pattern, were in good agreement with those determined previously.

Two-Dimensional Imaging of the Photolysis of Oriented Molecules

1995 ◽  
Vol 99 (13) ◽  
pp. 4360-4363 ◽  
Author(s):  
J. W. G. Mastenbroek ◽  
C. A. Taatjes ◽  
K. Nauta ◽  
M. H. M. Janssen ◽  
S. Stolte
Keyword(s):  
Two Dimensional ◽  
Oriented Molecules
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