A method is proposed for direct mapping of spectral density functions of the rotational motions of H-X bond vectors, such as ‘H-“N, by measuring a set of NMR relaxation parameters. The well known and frequently measured relaxation parameters T, and T, probe the spectral density function J(o) at five frequencies: 0, WN, wn, in wN, and wu t wN. In this study, the longitudinal relaxation time T,( ...

The classification of well-log responses into separate flow units for generating local permeability models is often used to predict the spatial distribution of permeability in heterogeneous reservoirs. The present research can be divided into two parts; first, the nuclear magnetic resonance (NMR) log parameters are employed for developing a relationship between relaxation time and reservoir poro...

The use of relaxation parameters in hybrid smoothers within algebraic multigrid (AMG) is analyzed both theoretically and practically. Relaxation parameters that are optimal under the assumptions of the theory are determined. The implementation of a procedure to automatically determine outer relaxation parameters for symmetric positive definite smoothers is described. Numerical results are prese...

Sleep is a basic behavior in humans. There are some research reports on the cyclical patterns of different types of sleep and their relationship to breathing, heart rate, brain waves, and other physical function. More recently, scientific research has begun to show how music therapy interacts with relaxation and sleep cycle. This research is focusing on the following hypotheses: 1. Music could ...

Sleep is a basic behavior in humans. There are some research reports on the cyclical patterns of different types of sleep and their relationship to breathing, heart rate, brain waves, and other physical function. More recently, scientific research has begun to show how music therapy interacts with relaxation and sleep cycle. This research is focusing on the following hypotheses: 1. Music could ...