The Resource Space Model (RSM) is a semantic data model based on orthogonal classification semantics for effectively managing various resources in interconnection environment. In parallel with the integrity theories of relational and XML-based data models, this keynote presents the integrity theory for the RSM, including the entity integrity constraints based on the key system of the RSM, the m...

Abstract The study investigated the effect of fibre laser processing (1060 nm, 240-ns pulse duration) on surface integrity tungsten carbide (WC). induced damage ranged from crack formation, porosity, balling, to spherical pores; severity and presence each were dependent parameters selected. influence fluence (0.05–0.20 J/cm 2 ), frequency (5–100 kHz), feed speed (250–2500 mm/s) hatch distance (...