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L. O. Sosnovskyi,O. O. Kebikov    

The criterion of mechanical condition of steel, basing on interconnection of a limit of contact fatigue, a limit of mechanical fatigue, a ultimate strength and a hardness. The technique of an estimation of a mechanical condition of a rail steel is develo... see more


I. O. Bondarenko    

Purpose. The scientific paper is supposed the determination of basic physical and structural conditions in modeling life cycle of the elements of the railway line for the study of deformation processes as the basis of normative base of the track at the c... see more


A. V. Donchenko,V. A. Khudiienko,T. V. Sheleiko    

The article substantiates the possibility and expediency of using hopper cars for mineral fertilizers in transportation of bulk freights without reduction of bearing ability parameters of their elements. Results of theoretical research, strength and oper... see more


A. A. Bosov,V. V. Artemchuk    

In the article the results of theoretical researches aimed at the mathematical design of planning the experiments are presented. The new is that planning the experiments is conducted simultaneously on three indices of quality. They are coverage-to-basis ... see more


O. M. Pshinko,D. V. Rudenko,Yu. V. Punahina    

The article presents the results of experimental and theoretical research of the repair & restoration technologies at the special purpose structures. Experimental data have been provided for determining the strength of concrete, based on activated binder... see more