Building a mathematical model to prevent hydrate formation in gas pipelines
Abdulaga Gurbanov, Ijabika Sardarova, Javida Damirova Development of mathematical models of laminar gas flow in certainty and uncertainty conditions were considered. All factors that influence to character of flow of gas in pipeline and conditions of arising of hydrate inside of pipeline wall are analyzed. Results of analyze were used for development mathematical model of […]
Analysis of the air exchange in livestock building through the computational fluid dynamics
Ivan Ivanov, Konstantin Kostov, Koycho Atanasov, Ivan Denev, Neven Krystev Increasing consumption of meat and meat products worldwide is closely linked to improving the living environment for livestock. According to zoo experts, the appropriate microclimate in buildings leads to improved metabolic processes in their cultivation and contributes to their rapid weight gain. The issue of […]
Method for predicting the dissemination of hazardous substances in the soil during long-term storage of galvanic waste
Larisa Tretiakova, Liudmyla Mitiuk, Igor Panasiuk, Elina Rebuel The problem of production waste storage in open areas of an enterprise with a galvanic shop for the production of chips and microchips has been investigated. The composition of the sludge obtained after sewage treatment of the production of the copper line was investigated. The aim of […]
ADEQUACY EVALUATION OF THE SYNTHESIS OF MATHEMATICAL MODELS FOR ONE CLASS OF LINEAR DYNAMIC SYSTEMS WITH PARAMETERS, VARIABLE IN TIME AND IN SPACE
Borys Mokin, Oleksandr Mokin, Oleksandr Kryvonis The object of research: the authors of this work have synthesized in previous publications a mathematical model of one class of linear dynamic systems with variable parameters in time and space, which includes the system for lifting and lowering a load with a crane in the case of taking into […]
DEVELOPMENT OF A MATHEMATICAL MODEL OF THE FUNCTIONING OF ADAPTIVE ROUTING PROTOCOLS IN TELECOMMUNICATION NETWORKS WITH THE POSSIBILITY OF SELF-ORGANIZATION
Oleksii Nalapko The necessity of developing a mathematical model for the functioning of adaptive routing protocols in telecommunication networks with the ability to self-organize has been substantiated. The results of the study of the information transmission route choice in communication networks with the possibility of self-organization under the influence of deliberate interference and cyber-attacks […]
DEVELOPMENT OF ALGORITHMIC MODELS FOR RESEARCH OF RELIABILITY PARAMETERS OF TROLLEYBUS TRACTION ELECTRIC MOTORS IN THE OPERATION PROCESS
Vyacheslav Shavkun, Tatyana Pavlenko, Olha Kozlova The analysis of the reliability parameters of traction engines during the operation of trolleybuses in different modes is done. The presented groups of operational factors are lead to the emergence of censored samples. The methods of express analysis of engine reliability using technical diagnostic tools are determined. A block diagram […]