 He is Member of the Scientific and Technical Council of OAO "Gazprom".The research results of professor Korolenok were used to develop a number of industry practices and regulations, which were introduced into the practice of gas transportation companies such as "Gazprom", “Transneft", Rosneftegazstroy and others.The question “What do the graduates of the Department of Mechanical Engineering do?” can be answered briefly and very clearly