Cosy can refer to:
CoSy can refer to:
See also:
Two-dimensional nuclear magnetic resonance spectroscopy (2D NMR) is a set of nuclear magnetic resonance spectroscopy (NMR) methods which give data plotted in a space defined by two frequency axes rather than one. Types of 2D NMR include correlation spectroscopy (COSY), J-spectroscopy, exchange spectroscopy (EXSY), and nuclear Overhauser effect spectroscopy (NOESY). Two-dimensional NMR spectra provide more information about a molecule than one-dimensional NMR spectra and are especially useful in determining the structure of a molecule, particularly for molecules that are too complicated to work with using one-dimensional NMR.
The first two-dimensional experiment, COSY, was proposed by Jean Jeener, a professor at the Université Libre de Bruxelles, in 1971. This experiment was later implemented by Walter P. Aue, Enrico Bartholdi and Richard R. Ernst, who published their work in 1976.
Each experiment consists of a sequence of radio frequency (RF) pulses with delay periods in between them. It is the timing, frequencies, and intensities of these pulses that distinguish different NMR experiments from one another. Almost all two-dimensional experiments have four stages: the preparation period, where a magnetization coherence is created through a set of RF pulses; the evolution period, a determined length of time during which no pulses are delivered and the nuclear spins are allowed to freely precess (rotate); the mixing period, where the coherence is manipulated by another series of pulses into a state which will give an observable signal; and the detection period, in which the free induction decay signal from the sample is observed as a function of time, in a manner identical to one-dimensional FT-NMR.
Well, my name it is a number it's on a piece of plastic film
And I've been growin' funny flowers outside on my little window sill
Don't you know I'm a 2,000 man
And my kids, they just don't understand me at all
You know, my wife still respects me even though I really misuse her
I am having an affair with the Random computer
Don't you know I'm a 2,000 man
And my kids, they just don't understand me at all
Oh daddy, proud of your planet, oh mommy, proud of your sun
Oh daddy, proud of your planet, oh mommy, proud of your sun
Oh daddy, your brain's still flashin' like they did when you were young
Or did they come down crashin' seeing all the thing's you'd done
Spacin' out havin' fun
Oh daddy, proud of your planet, oh mommy, proud of your sun
Oh daddy, proud of your planet, oh mommy, proud of your sun
Oh daddy, your brain's still flashin' like they did when you were young
Or did they come down crashin' seeing all the thing's you'd done
Spacin' out havin' fun
Don't you know I'm a 2,000 man
And my kids, they just don't understand me at all
Don't you know I'm a 2,000 man
And my kids, they just don't understand me at all
Understand me, understand me, understand me
Don't you know I'm a 2,000 man
And my kids, they just don't understand me at all
Don't you know I'm a 2,000 man
And my kids, they just don't understand me at all
I'm a 2,000 man, I'm a 2,000 man
I'm a 2,000 man, I'm a 2,000 man