66 research outputs found
6 forecasting production performance
This article considers the application of econometric calculations by the method of statistical dependence equations to analyze the relationships between various factors and the performance indicator. It is noted that the use of econometric calculations should be based on knowledge and understanding of the essence of economic processes and phenomena, the specifics of economic interrelations and the laws of their development. The study presents the methodology by using statistical dependence equations and calculating the factor stability coefficients based on the actual development indicators of the livestock sector in the Akmola region over several years.peer-reviewe
Underbarrier nucleation kinetics in a metastable quantum liquid near the spinodal
We develop a theory in order to describe the effect of relaxation in a
condensed medium upon the quantum decay of a metastable liquid near the
spinodal at low temperatures. We find that both the regime and the rate of
quantum nucleation strongly depend on the relaxation time and its temperature
behavior. The quantum nucleation rate slows down with the decrease of the
relaxation time. We also discuss the low temperature experiments on cavitation
in normal He and superfluid He at negative pressures. It is the sharp
distinctions in the high frequency sound mode and in the temperature behavior
of the relaxation time that make the quantum cavitation kinetics in He and
He completely different in kind.Comment: 10 pages, 2 figure
Stages of steady diffusion growth of a gas bubble in strongly supersaturated gas-liquid solution
Gas bubble growth as a result of diffusion flux of dissolved gas molecules
from the surrounding supersaturated solution to the bubble surface is studied.
The condition of the flux steadiness is revealed. A limitation from below on
the bubble radius is considered. Its fulfillment guarantees the smallness of
fluctuation influence on bubble growth and irreversibility of this process.
Under the conditions of steadiness of diffusion flux three stages of bubble
growth are marked out. With account for Laplace forces in the bubble intervals
of bubble size change and time intervals of these stages are found. The trend
of the third stage towards the self-similar regime of the bubble growth, when
Laplace forces in the bubble are completely neglected, is described
analytically.Comment: 22 page
Momentum and buoyancy transfer in atmospheric turbulent boundary layer over wavy water surface - Part 2 : Wind-wave spectra
Peer reviewe
Estimation of the Thermodynamic Limit of Overheating for Bulk Water from Interfacial Properties
Distributions of pore sizes and atomic densities in binary mixtures revealed by molecular dynamics simulations
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