A carbon-supersaturated (CS-) high-speed steel punch was prepared using low-temperature plasma carburizing for fine blanking of pure titanium plates. The bare also as a reference to describe the adhesion and abrasive galling in plates, even single shot. CS-punch free from severe chemical galling, after repeatedly fine-blanking microstructure analysis, element mapping composition analysis demons...

The motion of free nearby test particles relative to a stable equatorial circular geodesic orbit about a Kerr source is investigated. It is shown that the nonlinear generalized Jacobi equation can be transformed in this case to an autonomous form. Tidal dynamics beyond the critical speed c/ √ 2 is studied. We show, in particular, that a free test particle vertically launched from the circular o...

Air Traac Management Systems (ATMS) of the future allow for the possibility of Free Flight, in which aircraft choose their own optimal routes, altitude and speed. In a free ight environment, the trajectories of diierent aircraft may be connicting, in which case aircraft may or may not cooperate in resolving the connict. In this paper, noncooperative connict resolution methods based on game theo...