The principle of multidimensional spectroscopy is described, and specific liquid-state NMR techniques that have applications in materials science are discussed. Keywords: nuclear magnetic resonance; density operator; chemical shift; spin–lattice relaxation; two-dimensional spectroscopy; polymer tacticity; ...
The guide has been written by experts in this field, following the principle of learning by doing: all the experiments have been specially performed for this book, exactly as described and shown in the spectra that are reproduced. Being a reference source and work-book for the NMR laboratory ...
Principle of the decomposition of a 3-way data cube according to the PARAFAC model. here, xijk are the measured data, giu, hjv and ekw are the elements of the loading matrices for each the three ways (with r, s and t factors, respectively) and cuvw are the elements of the core arr...
Principle of the decomposition of a 3-way data cube according to the PARAFAC model. here, xijk are the measured data, giu, hjv and ekw are the elements of the loading matrices for each the three ways (with r, s and t factors, respectively) and cuvw are the elements of the core arr...
From this evidence, the author of the present Application derived the principle of targeting the continuously expanding world of antibiotic-resistant enteropathogenic bacteria with the vaccine compositions herein disclosed in order to possibly limit, in parallel to enteric bacterial infections, the replicati...
What is the principle behind Fuchsin staining method for DNA identification on chromosomes?DNA, the main genetic material, is concentrated on chromosomes. In 1924, Fuchsin first used Schiff reagent to test and identify the presence of DNA on chromosomes, hence called Fuchsin staining method.. What...
This HPLC analysis can be used to routinely monitor the composition of the grape seed extract next to 1H-NMR spectroscopy followed by principle component analysis (PCA) as described below. Batch-to-batch analyses revealed that approximately a fourth of the grape seed extract’s flavanols is made...
Mathematical modeling of vessels arranged in parallel showed that FSS cannot be an organizing principle of vessel growth because the model predicts instability with a preference for few but large vessels [56]. However, this reflects arteriogenic reality rather well. After arterial occlusion many pre...
Some 15 years ago the physical principle of NMR spectroscopy, which again was discovered some 25 years earlier, was applied for the first time to obtain a cross-sectional image of water containing objects, in particular of biological tissues. It showed the intensity distribution of the emitted ...
Spectroscopy is the basis of many applications in chemistry; however, the basic principles of light, light–matter interaction, and the operation of spectrophotometers are rarely present in chemistry curricula at the high-school level, or they are only briefly introduced to students before focusing ...