pulsed field gradient造句
例句與造句
- A "'pulsed field gradient "'is a short, timed pulse with spatial-dependent field intensity.
- To sensitize MRI images to diffusion, instead of a homogeneous magnetic field, the homogeneity is varied linearly by a pulsed field gradient.
- Pulsed field gradient ( PFG ) techniques are key to magnetic resonance imaging, spatially selective spectroscopy and studies of diffusion via diffusion ordered nuclear magnetic resonance spectroscopy ( DOSY ).
- Some examples of two-dimensional NMR experimental techniques exploiting the NOE include rotational frame nuclear Overhauser effect spectroscopy ( ROESY ), transferred nuclear Overhauser effect ( TRNOE ), and double pulsed field gradient spin echo NOE ( DPFGSE-NOE ).
- Dynamic properties such as duplex single strand equilibria and binding rates of other molecules to duplexes can also be determined by its effect on the spin lattice relaxation time " T " 1, but these methods are insensitive to intermediate rates of 10 4 10 8 s " 1, which must be investigated with other methods such as solid-state NMR . Dynamics of mechanical properties of a nucleic acid double helix such as bending and twisting can also be studied using NMR . Pulsed field gradient NMR experiments can be used to measure diffusion constants.
- It's difficult to find pulsed field gradient in a sentence. 用pulsed field gradient造句挺難的