The entropy generation analysis of non-Newtonian fluid in rotational flow between two concentric cylinders is examined when the outer cylinder is fixed and the inner cylinder is revolved with a constant angular speed. The viscosity of non-Newtonian fluid is considered at the same time interdependent on temperature and shear rate. The Nahme law and Carreau equation are used to modeling dependenc...

a two-dimensional model of al, si ordering in alkali feldspar is formulated and used to calcul~tea ccurately the configurational entropy for the model. for this purpose, a new method called independent basic unit or ibu is introduced. to compare the results with the exact values, this method is applied to the onedimensional model of albite. the results given by ibu are found to be accurate to t...

in this work, one and two-dimensional lattices are studied theoretically by a statistical mechanical approach. the nearest and next-nearest neighbor interactions are both taken into account, and the approximate thermodynamic properties of the lattices are calculated. the results of our calculations show that: (1) even though the next-nearest neighbor interaction may have an insignificant effect...

Entropy, as it relates to dynamical systems, is the rate of information production. Methods for estimation of the entropy of a system represented by a time series are not, however, well suited to analysis of the short and noisy data sets encountered in cardiovascular and other biological studies. Pincus introduced approximate entropy (ApEn), a set of measures of system complexity closely relate...

The paper describes an alternative approach to forecasting financial time series based on entropy (C. A. Zapart, On entropy, financial markets and minority games, Physica A: Statistical Mechanics and its Applications, 388 (7) 2009, pages 1157-1172). The research builds upon an earlier statistical analysis of financial time series with Shannon information entropy, published in (Molgedey, L and E...

BACKGROUND Artifact robustness (i.e., size of deviation of an electroencephalographic parameter value from baseline caused by artifacts) and baseline stability (i.e., consistency of median baseline values) of electroencephalographic parameters profoundly influence electroencephalography-based pharmacodynamic parameter estimation and the usefulness of the processed electroencephalogram as measur...

In the paper, the approximate sequence for entropy of some binary hidden Markov models has been found to have two bound sequences, the low bound sequence and the upper bound sequence. The error bias of the approximate sequence is bound by a geometric sequence with a scale factor less than 1 which decreases quickly to zero. It helps to understand the convergence of entropy rate of generic hidden...