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1.545  Articles
1 of 155 pages  |  10  records  |  more records»
Nonlinear dynamical analysis is a powerful approach to understanding biological systems. One of the most used metrics of system complexities is the Kolmogorov entropy. Long input signals without noise are required for the calculation, which are very hard ... see more

Histogram equalization is essential for low-contrast enhancement in image processing. Several methods have been proposed; however, one of the most critical problems encountered by existing methods is their ability to preserve information in the enhanced i... see more

Histogram equalization is essential for low-contrast enhancement in image processing. Several methods have been proposed; however, one of the most critical problems encountered by existing methods is their ability to preserve information in the enhanced i... see more

With universalist or globalizing tendencies of thought, order is preferred while disorder is sought to be avoided at any price; the latter might generally be linked in politics to any kind of political dissidence, wars, conflicts, riots, etc. In psycholog... see more

Heart disease is one of the leading causes of death in the world. Early detection followed by therapy is one of the efforts to reduce the mortality rate of this disease. One of the leading medical instruments for diagnosing heart disorders is the electroc... see more

Introduction. Deoxyribonucleic acid (DNA) is not a random sequence of four nucleotides  combinations: comprehensive reviews [1, 2] persuasively shows long- and short-range correlations in DNA, periodic properties and correlations structure of sequenc... see more

Introduction. The heart rate variability (HRV) is based on measuring (time) intervals between R-peaks (of RR-intervals) of an electrocardiogram (ECG) and plotting a rhythmogram on their basis with its subsequent analysis by various mathematical methods wh... see more

This article discusses the commutation matrix in the Kronecker quaternion group; that is, a non-abelian group whose 32 elements are matrices of 4 × 4 size, with entries in the set of complex numbers. The purpose of this paper is to describe the commutatio... see more

The article offers a cognitive research of the reasons and manifestations of information entropy in the time-remote original texts, namely Shakespeare's plays, with regard to chronologically distant translations into Ukrainian performed by Panteleimon Kul... see more

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