The article substantiates Abu Ali ibn Sina's philosophical views on existence and knowledge based on scientific sources. Abu Ali Abu Ali ibn Sina's ontological views were mainly influenced by Neoplatonism. The main categories of the doctrine of existence are matter, motion, space, time, substance. The article mentioned that Abu Ali ibn Sina put forward the opinion that nature is eternal and eternal, its laws do not change by themselves, man is able to understand them, the soul is determined by the activity of the body, and its individual immortality is impossible.

In this article, the great Eastern thinker Abu Ali ibn Sina's rare works highlight the issues of human perfection, culture and raising philosophical reasoning. Today's reforms in the field of education encourage the creativity of our forefathers to be deeply researched in every way and raise the weight of our national spiritual values. In particular, the philosophical heritage of Abu Ali ibn Sina is multifaceted, and their comparative study is of great importance in the current historical stages when the foundations of civil society are being created.

This article provides information regarding the analysis of the procedure for extending the lifetime of railway traction rolling stock, including industrial locomotives, the lifetime of which has expired on the basis of regulatory documents. In addition, information is provided on the list and order of research work that needs to be carried out to assess the residual lifetime of locomotives.