[NMR images] Traditional NMR uses coils to
http://michaelgr.files.wordpress.com/2007/05/nmr-protein-001.jpg?w=450
http://michaelgr.com/2007/05/24/look-at-them-proteins-a-better-nuclear-magnetic-resonance-probe-and-a-look-at-computational-protein-research/
20/12/2011 4:11:48 PM GMT
Traditional NMR uses coils to
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nmrlearner
NMR pictures
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01-12-2012 09:30 PM
[KPWU blog] [PyMOL] gradient background color
gradient background color
Starting at *PyMOL 1.4, *single color for the background is no longer the only choice. By using 3 PyMOL commands, the gradient background color can be easily shown. The only thing users have to know is that command “ray” doesn’t support this gradient color yet. So if you type “ray” in the pymol terminal , http://stats.wordpress.com/b.gif?host=kpwu.wordpress.com&blog=76132&post=619&subd=kpwu&ref=&feed=1
Go to KPWU blog to read complete post.
nmrlearner
News from NMR blogs
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11-15-2011 11:36 PM
[Question from NMRWiki Q&A forum] relation of T2 relaxation time to gradient strengths
relation of T2 relaxation time to gradient strengths
to detect short T2 NMR relaxation time, we use high gradient strengths. but how? what is the relation? what is the mechanism behind it? I am interested more in physical picture rather than mathematical description.
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nmrlearner
News from other NMR forums
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10-21-2011 09:52 AM
[Question from NMRWiki Q&A forum] Problem with the gradient shimming
Problem with the gradient shimming
Dear Friends,
I've recently encountered a problem with gradient shimming that has never happened to me before. I can't clearly determine what caused it but it certainly didn't involve anybody manipulating with the probe. Here's the symptom: when running the gmapz experiment, the Z-profiles (before and after gradient) look like this:
http://img833.imageshack.us/img833/2213/zprofilef.png
As you can see the second profile (after the gradient) is distorted at the left edge (more or less severely, depending on a sample - here it's just a tiny "step")....
nmrlearner
News from other NMR forums
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10-11-2011 06:35 PM
[Question from NMRWiki Q&A forum] gradient shim map question
gradient shim map question
Does anyone know for sure if a shim map is off center slightly left in a negative direction...and I assume it is a centering issue do you whether it would be probe up/down?
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nmrlearner
News from other NMR forums
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10-19-2010 06:35 PM
[NMR paper] Extensive 1H NMR resonance assignment of proteins using natural abundance gradient-en
Extensive 1H NMR resonance assignment of proteins using natural abundance gradient-enhanced 13C-1H correlation spectroscopy.
http://www.ncbi.nlm.nih.gov/corehtml/query/egifs/http:--linkinghub.elsevier.com-ihub-images-PubMedLink.gif Related Articles Extensive 1H NMR resonance assignment of proteins using natural abundance gradient-enhanced 13C-1H correlation spectroscopy.
FEBS Lett. 1993 Nov 1;333(3):251-6
Authors: Medvedeva S, Simorre JP, Brutscher B, Guerlesquin F, Marion D
The reliability and completeness of 1H NMR resonance assignment can...
nmrlearner
Journal club
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08-22-2010 03:01 AM
[U. of Ottawa NMR Facility Blog] Gradient Spin Echoes for Selective Excitation
Gradient Spin Echoes for Selective Excitation
Shaped excitation pulses can replace the non-selective hard pulses typically used in a one-pulse measurement to achieve selective excitation. Another method of achieving selective excitation is the gradient spin echo using a selective 180° pulse. This technique is demonstrated in the figure below. http://4.bp.blogspot.com/_5wBTR2kKTqA/S_UxeG5oXdI/AAAAAAAAAzc/BHWef-Tse7s/s400/grad_spin_echo.jpgA non-selective hard 90°x pulse is first given followed by a pair of identical pulsed field gradients sandwiching a soft selective 180° pulse about the y...
Gradient Coils
Linear Mode
