in the present study, the effects of growth defects and chromium content loss on the degradation of corrosion andpassivation of cathodic arc evaporation (cae-pvd) of stainless steel coating were investigated in 2 m sulphuricacid solution. eds analysis indicated that the micro-particles were obtained during the coating growth. in addition,it was detected that the growth defects had poor adhesion...

objective: a clinical challenge of using zirconia frameworks is to achieve adequate bond with different substrates. this study aimed to evaluate the effect of bioglass and silica coating of zirconia substrates on microshear bond strength of resin cement to tetragonal zirconia. methods: this laboratory experimental study was conducted on zirconia discs. a total of 120 ytzp zirconia (zirkonzahn) ...

The development of graffiti studies during the last couple decades highlighted relevance and potential as a complementary source for understanding different aspects past societies. Moreover, availability digital documentation techniques crucially increased data production, showing widespread presence in Medieval Early Modern contexts across Europe. However, approach to historical has not been y...

Graffiti and street art, which are alternative forms of expression communication developed on the street, have evolved from illegal practices intended for attention a limited group, to accepted artistic that appeal interest taste large masses. This transformation brought along academic approval institutionalization, while many artists responded this new demand, galleries museums also made room ...