ентропія

APPLICATION OF FRACTIONAL ORDER DIFFUSION MODEL IN ANALYSIS OF DIFFUSION-WEIGHTED MAGNETIC RESONANCE IMAGING DATA

This study explores the application of a fractional diffusion equation in diffusion-weighted magnetic resonance imaging (DW-MRI or DWI) analysis, aiming to validate and extend previous research based on an open-access dataset. A fractional-order model using the Mittag-Leffler function is implemented and validated by reproducing results presented in existing literature. The method is then applied to an open-access Connectome Diffusion Microstructure Dataset (CDMD) to analyze real brain imaging data.

Subsystem of CPS information Support Organization

The possibilities of theinformation support for cyber-physical designing systems have been considered. Their coincidence with Open System Interconnection Standard has been analyzed. Their effectiveness has been taken into account. From this point of view, the usage of compression technique, low-energy wireless networks has been considered.

Increase in an Entropy of a Code Word in the Binary Channel With Constant Duration

Transmission and perception of information are based on property of matter — reflection. Reflection is objective material process as a result of which system “A” interacting with system “B” reflects its image by change of the properties or acquires the new properties connected to closeness of system “B”. Therefore, the content of reflection is defined by features of the displayed system “B”, and the form of reflection — change of properties of the perceiving system “A”.

Segmentation of partially-blurred images using wavelet transform

In the research a method for segmentation of partially-blurred images using the wavelet transformation, particularly coiflet of the order L=3 is presented. The entropy is used as a segmentation criterion based on wallet transformation. K-means method is used for image segmentation. Developed method was tested and has shown good results of his work; it correctly performs more than 82 % of pixels of image, and in many individual cases, more than 90 %.

Thermodynamic properties of solubility of 2-methyl-5-arylfuran-3-carboxylic acids in organic solvents

The temperature dependencies of both acids solubility in acetonitrile, dimethylketone, isopropanol, ethylacetate and benzene were investigated. The results were represented by Shredder’s equation according to which enthalpies, entropies and Gibbs energy of solubility at 298 K were determined. Fusion heats of the acids were determined using differential thermal analysis. In accordance with obtained values the enthalpies, entropies and Gibbs energy of mixing were calculated. The compensating effect of mixing was observed for al solvents with carboxy group.

Theoretical foundations of assessment method of structured multifunctinal data entropy

The theoretical position entropy method of assessment and structural complexity of binary images. An example of calculating entropy and structural complexity of binary images based on correlation entropy measures and criteria of structural complexity.