@@ When a temperature change under a vacuum condition is applied to a pyroelectriccrystal such as lithium tantarate (LiTa03) and lithium niobate (LiNb03),anel
@@ The further development and efficient use of advanced materials innanoelectronics and photovoltaics require reliable information on the elementalcomposition
@@ Several glazed ceramic fragments(XVI-XVIII centuries)from two productioncenters in Portugal(Coimbra and Lisbon)were object of study.The ones fromCoimbra with