Abstract Diamond-like carbon (DLC) coatings protect engine parts from wear and provide low-friction. Unfortunately, the nature of DLC does not allow progressing measurement using conventional methods. Therefore, we applied a radioactive isotope-based method (RIC method). A tribometer with oscillating contact one sliding were used to different loading conditions. The RIC was evaluated for coatin...

In excitable tissues such as nerve fibers and muscles, distribution of alkali metal ions is remarkably different inside and outside the cell membrane. It is believed that potassium distribution difference causes polarization of membrane and generates resting potential, and that the rapid penetration of sodium against membrane generates action potential. Sodium existing in a high concentration o...

The advancement of radioactive ion beam (RIB) science since its advent in the last few decades calls for the development of so-called next generation facilities, able to provide beam intensities several orders of magnitude higher than presently available. Two of them are planned by the European roadmap and are representative of the two main methods by means of which RIBs are produced nowadays: ...

We compute the scattering properties of rubidium atoms at ultracold temperatures, placing special emphasis on the radioactive isotopes Rb,Rb,Rb, and Rb. In combination with the more ‘‘conventional’’ isotope Rb, these species yield a wide variety of scattering behavior, with consequences for creating mixtures of Fermi-Fermi, Fermi-Bose, and Bose-Bose gases. In each of these mixtures we find at l...

Diffusion characteristics of cobalt atoms were investigated using radioactive isotope method in phase-hardened Fe-18wt.%Mn-2wt.%Si alloy. The observed significant increase of diffusion coefficient of cobalt atoms under the cyclic γ-ε-γ martensitic transformations was due to the action of two independent mechanisms - an athermal one and a thermally activated one. The first one arose from the dir...