моделювання

Self-similar model of cloud data warehouse load

This article presents the results of the practical study of real load cloud storage. The dynamic characteristics of incoming and outgoing traffic and distribution capacity server hardware are established. It has enabled a dynamic model load construction and the opportunity to practically demonstrate the feasibility of using fractal models. Temporal self-similarity parameters have been revealed. Implemented self-similar model of load allows accurately predict the workload in the time context.

Formation of the favorable information and investment environment as a basis of developing structural business shell

The  article  analyzes  the  development  of  integrated  corporate  structures  in  Ukraine, defines  their  advantages  and  disadvantages.  Trends  of  forming  global,  more flexible  and adaptive economic structures in the world practice are investigated. The authors proved the expediency  of  presenting  integrated  corporate  structures  in  the form  of  structural  business shell.  Their  advantage  is  determined  by  the  necessity  of  forming  more  attractive  and transparent investment vehicles for investors.

Geodynamic and geophysical effects in the physical models of interactions between the Earth’s structural shells

Perspectives of the creating of the new physical models concerning the structure of the Earth, their evolution and methodology of the structure classification and parameter measuring of the Earth’s physical fields are analyzed. It is pointed out that investigation of the deep structure, composition and geodynamics of the continental and oceanic lithosphere gives the possibility to distinguish the system connected with global processes of Earth’s development (rifts, uncompensated deeps, continents, oceans). 

Thе formation of rеlationships schеmе in the systеm of managеmеnt of land rеsourcеs in the procеss of bordеring lands of statе and municipal propеrty as for sеttlеmеnts on the basis of institutional approach

In the article the problems of settlements land management in separation procedure of land in state and municipal property in the current stage of state development is shown. The management model of settlements land use which include the state, public and private interests are proposed.

 

Optimization of Oxidation Desulphurization of Power-generating Coal

An experimental statistic model of power-generating coal oxidative desulphurization has been developed and its adequacy has been proved. On the basis of the proposed model the desulphurization optimal conditions for three samples of power-generating coal were determined. The low-sulphur solid fuel with the content of general sulphur of 1.0–1.5 mas % was obtained under established optimal conditions.

Hydrodynamics Modeling of Gas Separator Inertial and Filter Elements for Natural Gas Fine Cleaning

The trends in the development of modern gas separation equipment have been considered. On the basis of computer modeling the optimal size of the device has been obtained. Reasonable choice of a computer and mathematical experiments, as a research method has been shown. The experimental results of the double-circuit dust collector investigations have been represented.

Analysis of the Conditions of Phase Equilibrium and Influence of the United Heat and Mass Transfer on the Effectiveness of Separation in the Inertial-Filtering Separator

In this paper the basic thermodynamic parameters that have the greatest impact on the efficiency of the separation processes of gas-liquid mixtures and phase equilibrium in such systems are considered. The general characteristics of separation processes based on phase equilibrium are given. The main approaches to the calculation of phase equilibrium and coupled heat are analyzed. Possible ways of gas separation technology improvement and development are explored.

Study of Mass Transfer Coefficient of Cephalexin Adsorption onto Walnut Shell-Based Activated Carbon in a Fixed-Bed Column

The adsorption of cephalexin (CFX) onto walnut shell-based activated carbon (AC) was investigated. The mass transfer coefficients were calculated by employing constant wave propagation theory. The effect of different conditions on the mass transfer coefficient was also studied. In addition, three models to predict the mass transfer coefficient were developed.