2,870 research outputs found
Epidemiologia do mofo-preto e danos na produção do cajueiro.
Material e métodos. Resultados e discussão. Conclusões.bitstream/CNPAT-2010/10341/1/Bd-023.pd
Elementos limitantes à produção de pastagens nativas consorciadas com leguminosas na Ilha de Marajó.
bitstream/item/32036/1/CPATU-BP119.pd
Edge phonons in black phosphorus
Exfoliated black phosphorus has recently emerged as a new two-dimensional
crystal that, due to its peculiar and anisotropic crystalline and electronic
band structures, may have potentially important applications in electronics,
optoelectronics and photonics. Despite the fact that the edges of layered
crystals host a range of singular properties whose characterization and
exploitation are of utmost importance for device development, the edges of
black phosphorus remain poorly characterized. In this work, the atomic
structure and the behavior of phonons near different black phosphorus edges are
experimentally and theoretically studied using Raman spectroscopy and density
functional theory calculations. Polarized Raman results show the appearance of
new modes at the edges of the sample, and their spectra depend on the atomic
structure of the edges (zigzag or armchair). Theoretical simulations confirm
that the new modes are due to edge phonon states that are forbidden in the
bulk, and originated from the lattice termination rearrangements.Comment: 15 pages, 4 figure
Respostas de três espécies forrageiras: Brachiaria Decubens, Stapf - Brachiria ruziziensis germain et everard e Penisetum purpureum Schum) a elementos fertilizantes em latossol amarelo textura média.
Germinação de sementes de araticum-do-brejo (Annona glabra L.) submetidas à pré-embebição em ácido giberélico.
Publicado também: FRAZÃO, D. A. C.; HOMMA, A. K. O; VIÉGAS, I. de J. M. (Ed.). Contribuição ao desenvolvimento da fruticultura na Amazônia. Belém, PA: Embrapa Amazônia Oriental, 2006. p. 129-134
Genetic diversity and ISSR marker association with the quality of pineapple fiber for use industry.
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