Strategic Management of Ukrainian Technological Parks' Activity

by Yu. Petryna, Ya. Palahitskyi
Published 2009

Surface strengthening of 40X steel by electric spark alloying

by S. I. Kryshtopa, Yu. Petryna, I. M. Bohatchuk, I. B. Prunko, V. M. Melnyk
Published 2017

Degradation of welded joint metal of the exploited main gas pipeline

by O. T. Tsyrulnyk, V. A. Voloshyn, Yu. Petryna, M. I. Hredil, O. I. Zvirko
Published 2010

Corrosion and corrosion-mechanical fracture of crude oil tank steel

by Yu. Petryna, V. M. Hohol, Yu. D. Petryna, O. I. Zvirko, Yu. M. Nykyforchyn
Published 2015

The influence of alloying with rare earth metals on mechanical properties of 17H1S pipe steel

by Yu. Petryna, O. L. Kozak, B. R. Shuliar, Yu. D. Petryna, M. I. Hredil
Published 2012