xPb(Sc1/2Nb1/2)O3–(1 − x)Pb(Hf1−yTiy)O3 piezoelectric ceramics were prepared by solid-state route, and the phase structures properties of systematically investigated. Results showed that sample with composition x = 0.07 y 0.53 possessed higher coexistence between rhombohedral tetragonal, exhibited optimal among different constituent systems, i.e., TC 355 °C, d33 400 pC/N, εr 1390, tan δ 1.05%. ...

Tuberculosis is one of the most widespread infectious and deadliest diseases in world. The death percentage larger than that case current Coronavirus. Bio-photonic sensors represent a promising option for developing reliable, simple, affordable tools effective detection tuberculosis. In this paper, novel design an optical biosensor will be used as tuberculosis detector based on resonance cavity...

Abstract Despite Lucretius’ observations about fertility and marriage at the end of book 4, Epicurean view on procreation is to a great extent still uncharted territory, due shortage textual evidence other than Lucretius. An important, but often neglected source information can be found in few remaining columns the, unfortunately rather badly preserved, Herculaneum papyrus PHerc . 908/1390, con...

In this study, the influence of up to 15 vol% WC or Mo2C addition Ni bonded NbC matrix cermets, prepared by pressureless liquid phase sintering in vacuum for 90 min at 1390 °C was assessed. The constituent phases and W/Mo dissolution binder were simulated thermodynamic modelling. Microstructure analysis using XRD SEM indicated that modified based cermets composed a (Nb,W)C (Nb,Mo)C solid soluti...

The detrimental effects of stress on life satisfaction in general population are well known. However, the associations between these variables and their underlying mechanisms scarce among teachers. Therefore, it was investigated possible mediating effect wellbeing link pre-university Romanian teachers’ perceived satisfaction. Participants included 1390 teachers (mean age = 38.76, ± SD 10.08; 72...