1. Faculty of Metallurgy and Mechanical Engineering, Karaganda Industrial University, Karaganda, Kazakhstan
2. Department of Chemical Technology and Ecology, Karaganda Industrial University, Karaganda, Kazakhstan
3. Faculty of Mining, Abylkas Saginov Karaganda Technical University, Karaganda, Kazakhstan
4. Department of Power Supply and Renewable Energy Sources, Gumarbek Daukeyev Almaty University of Power Engineering and Telecommunications, Almaty, Kazakhstan
5. Sumy National Agrarian University, Sumy, Ukraine