260 research outputs found
Les expéditions franco-brésiliennes GOIAS 94 et GOIAS 95 sur le karst de Sao Domingo, Goias, Brésil
A Raman Study of Morphotropic Phase Boundary in PbZr1-xTixO3 at low temperatures
Raman spectra of PbZr1-xTixO3 ceramics with titanium concentration varying
between 0.40 and 0.60 were measured at 7 K. By observing the
concentration-frequency dependence of vibrational modes, we identified the
boundaries among rhombohedral, monoclinic, and tetragonal ferroelectric phases.
The analysis of the spectra was made in the view of theory group analysis
making possible the assignment of some modes for the monoclinic phase.Comment: 5 pages, 4 figure
Valoração econômica do efeito da erosão em sistemas de manejo do solo empregando o método custo de reposição
Analysis of floristic composition and structure as an aid to monitoring protected areas of dense rain forest in southeastern Brazil
Hidratação enteral em bovinos: avaliação de soluções eletrolíticas isotônicas administradas por sonda nasogástrica em fluxo contínuo
Influence of scrotal bipartition on spermatogenesis yield and sertoli cell efficiency in sheep
Composição corporal e exigências líquidas de macrominerais para ganho de peso em bovinos 5/8 Holandês-Zebu em pastejo na zona da mata de Pernambuco
Structural and functional leaf traits of two Gochnatia species from distinct growth forms in a sclerophyll forest site in Southeastern Brazil
Determinação do índice de qualidade subsuperficial em um Latossolo Amarelo Coeso dos Tabuleiros Costeiros, sob floresta natural
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