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Information × Registration Number 0222U002112, 0117U003056 , R & D reports Title Dynamic regimes of technological systems popup.stage_title Head Bliuss Borys O., Registration Date 10-02-2022 Organization Institute of Geotechnical Mechanics named by N. Poljakov of National Academy of Sciences of Ukraine popup.description2 The explosibility criterion of hydrocarbon gases safety in the process of their extraction from isolated mines volumes and preparation for utilization is determined according to the oxygen concentration in the gas mixture is established. A multifactor criterion of energy-efficient and joint operation safe control of two main fans at a flank ventilation system using the method of steep descent is developed. A physical model of slow dynamics of coal polarization-depolarization in a weak electrostatic field is developed. A evaluation method for estimating the rapid processes parameters of induced electric potential changing the level of coal substance is developed. For the first time, an increase in the voltage level during electric charge scattering was found for milled coal of medium grades and it was shown that it is show that the repeated charge-discharge cycle leads to an increase in residual polarization. For the first time, with account for the parameters of open porosity and massif fracturing, is traced a connection between geomechanical parameters of rock fracture (prevalence of inelastic deformation zones, volumes and opening of crack systems) around the well and possible volumetric gas consumption as the main parameter that characterizes the efficiency of methane production. The burial depths dependences of the rock-breaking tool in the subsurface rock sample on the operation mode of the immersion cavitation hydraulic hammer (ICHH) are determined and a mathematical model of rotary-percussion drilling of small diameter wells in rocks based on ICHH is elaborated. The methods and methodological support for managing the processes of logistics transport systems of mining enterprises by establishing legitimacy is elaborated that determining the parameters of pressureless flows of hydraulic mixture and technical fluid from the properties of the environment under the influence of external factors and non-stationary changes in technological parameters. Product Description popup.authors Bezruchko Kostyantin А. Vasyliev Leonid M Zberovskyi Vasyl V. Kurnosov Serhii A. Lapshin Evgen S. Nadutyj Volody`my`r P. popup.nrat_date 2022-03-09 Close