𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Application of nonlinear sampling schemes to COSY-type spectra

✍ Scribed by Peter Schmieder; Alan S. Stern; Gerhard Wagner; Jeffrey C. Hoch

Publisher
Springer Netherlands
Year
1993
Tongue
English
Weight
446 KB
Volume
3
Category
Article
ISSN
0925-2738

No coin nor oath required. For personal study only.

✦ Synopsis

Nonlinear sampling along the tl dimension is applied to COSY-type spectra. The sine dependence of the time domain signals for the cross peaks is matched by a nonlinear sampling scheme that samples most densely around the maximum of the sine function. Data are processed by maximum entropy reconstruction, using a modified implementation of the 'Cambridge' algorithm of Skilling and Bryan. The procedure is demonstrated for P.E.COSY spectra recorded on a cyclic hexapeptide and on a 126-residue domain of the protein villin. The number oft~ values in the nonlinearly sampled experiments was reduced by a factor of four compared to linear sampling. The sensitivity and resolution of the resulting spectra are comparable to those achieved by conventional methods. The method described can thus significantly reduce the measuring time for COSY-type spectra.

πŸ“œ SIMILAR VOLUMES

Application of a second-order Godunov-ty
Application of a second-order Godunov-type finite difference scheme to a nonlinear elastodynamic problem
✍ J. L. Wegner; L. Jiang; J. B. Haddow πŸ“‚ Article πŸ“… 1991 πŸ› Springer 🌐 English βš– 509 KB

A second-order Godunov-type finite difference scheme is applied to the governing equations of finite amplitude plane motion of a hyperelastic string. The governing equations, expressed in conservation form, are a hyperbolic system of four first-order partial differential equations. Numerical results

Improved Proton Assignment for DNA by Ap
Improved Proton Assignment for DNA by Application of Aliasing and Dispersive-Absorptive Phasing to Two-Quantum COSY Spectra
✍ Karl D. Bishop; Philip N. Borer; IstvΓ‘n Pelczer πŸ“‚ Article πŸ“… 1996 πŸ› Elsevier Science 🌐 English βš– 132 KB

A unique combination of aliasing and dispersive-absorptive (DA) phasing of two-quantum correlated spectroscopy (2 Q-COSY) NMR data is shown to enhance proton chemical-shift assignments in DNA oligonucleotides by (i) reducing the time necessary for acquiring NMR data or, alternatively, improving the

Application of a two-step compensating s
Application of a two-step compensating scheme to a class of nonlinear control systems
✍ Feng-Hsiag Hsiao; Shing-Tai Pan; Shiow-Liann Fann πŸ“‚ Article πŸ“… 1995 πŸ› Elsevier Science 🌐 English βš– 334 KB

The stabilization problem of a class of nonlinear control systems via dynamic" output feedback is" investigated in this paper. The paper contains some original results Jor the stabilization of nonlinear control systems, established by applying the factorization theory Jor linear systems and quasi-st