Security administration of large systems is complex, but it can be simplified by a role-based access control approach. This article explains why RBAC is receiving renewed attention as a method of ...

Durability is rarely an issue. Printed stands hold up well to daily use and don't require much post-processing. For parts ...

This paper will present a 2D modelling of a PCS system and the preliminary results of 2D control performance and effort required in contact tracking by an active sliding pantograph. The 2D model will ...