Defining and applying a new approximation for the parametric probability densities of spherical particle profile sizes

Poliakova, Ekaterina

doi:10.5566/ias.2539

Image Anal Stereol

2022

DOI: 10.5566/ias.2539

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Defining and applying a new approximation for the parametric probability densities of spherical particle profile sizes

Ekaterina Poliakova

Abstract: A novel approximation for the parametric probability densities of spherical particle profile diameters is suggested. The spheres are approximated from solids obtained by rotating regular polygons around their axes of symmetry. This approximation facilitates using the maximum likelihood method in samples that have too few profiles for applying classical stereological approaches.

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2023

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Compaction of the snow base of Vostok station wintering complex

Pashchenko,

Kharkov,

Sidorenko

et al. 2023

Struct. Mech. of Eng. Const. and Build

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The compaction of the snow base of the wintering complex under construction of the Russian Antarctic station “Vostok” is considered, which was required due to the unsuitability of the natural snow base for the perception of loads from the supports of the foundation of the wintering complex. Technical solutions were developed for snow base compaction on the basis of heating by solar radiation with the use of thermal mat and on the basis of snow vacuuming. The computational justification of the developed technical solutions was performed, which was carried out based on spatial finite element models using the computational software complex ANSYS. In this case, to substantiate the method of snow base compaction by solar radiation heating with the use of thermal mat, the calculated volume was analyzed, including the snow base zone, thermal mat and the space filled with air. When substantiating the method of snow base compaction by snow vacuuming, there was explored the calculation area for modeling the method of vacuuming for the hermetic volume of the excavation pit with immersed columns under the wintering complex foundation supports. The results of the of the calculated research have fully confirmed the assumptions laid down in the technical solutions for compaction of the wintering complex snow base by using of thermal mat and snow vacuuming.

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Compaction of the snow base of Vostok station wintering complex

Pashchenko,

Kharkov,

Sidorenko

et al. 2023

Struct. Mech. of Eng. Const. and Build

View full text Add to dashboard Cite

show abstract

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Defining and applying a new approximation for the parametric probability densities of spherical particle profile sizes

Cited by 1 publication

References 10 publications

Compaction of the snow base of Vostok station wintering complex

Compaction of the snow base of Vostok station wintering complex

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