математична модель

Mathematical and digital models to study the long line switching processes with regard to their basic parameters are developed, providing the required adequate modeling.

This article surveys the modeling aspects of modern excitation systems for synchronous machines that is used to analyze power system stability. We presented peculiarities of over excitation limiter mathematical model and tested their performance for real power stations.

The article describes mathematical model of analyses the energy use costs efficiency (depending on the type and volume of products produced by the machine-building enterprise, the consumption of certain types of energy resources and their use in specific production processes, etc.). Methodology and mathematical model of the plan for modernization of industrial production energy-consuming processes has been developed.

The structure of an emulsion formed in wastewater from edible oils production has been investigated. The type of emulsifier has been determined and the method of emulsion destruction has been proposed, providing further quality treatment of wastewater via liquid-extraction method. The resulting equilibrium and operating lines of the process were received. The number of transfer stages has been determined. The mathematical model of liquid-extraction wastewater treatment was built.

Quality  and  efficiency  of medical  services  are  the major priorities  in  the development of health  care  system within the world countries. With the civilization development the quality of the medical services acquires a key value.

The influence of nitrogen oxides on the СО2 uptake rate by chlorophyll-producing microalgae of Chlorella type was investigated. Experimental dependences of microalgae concentration growth over time under certain values of nitrogen oxides concentration in the culture medium were obtained. The mathematical model of microalgae biomass growth depending on nitrogen oxides concentration was developed. Based on the solution of the mathematical model and the obtained experimental data, the concentration of nitrogen oxides for the maximal microalgae growth was determined.

The processes of transforming the algorithm algebra formulas are described. The algorithm for calculation of geometrical parameters of unithrams is given. Synthesized, minimized, built a mathematical model and investigated the algorithm of the transformation process of algebra algorithm formulas.

It is well known that humanity has to deal with a large number of environmental problems. Every year the level of the Earth's electromagnetic field is only increasing, which is associated with human activity. Promising was the solution of the problem of carbon dioxide absorption by chlorophyll synthesizing microalgae under the influence of microwave electromagnetic radiation.

As of today, humanity has to deal with a large number of environmental problems. Such problems include climate changes on Earth, which makes the worldwide scientific community and today’s world leaders of countries to raise the alarm. The impetus for the drawing of attention was the rapid rise in the earth temperature, threatening to raise the level of the World Ocean and cause catastrophic consequences in general.