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Lowering the synthesis temperature of Ni2P/SiO2 by palladium addition
The addition of small amounts of palladium (0.1%, 0.5% and 1.0% w/w) to a NixPyOz/SiO2 sample led to a decrease of ∼200 K in the synthesis temperature of Ni2P/SiO2, allowing synthesis to proceed atExpand
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Hydrotreatment of sunflower oil using supported molybdenum carbide
Abstract Pure sunflower oil was hydrotreated (T = 633 K, P = 5 MPa) aiming the production of a biofuel in the diesel range using β-Mo2C/Al2O3 as catalyst. The catalyst was synthesized in situ usingExpand
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NEST FOUNDATION AND DIVERSITY OF MELIPONINI (HYMENOPTERA, APIDAE) IN AN URBAN AREA OF THE MUNICIPALITY OF JUIZ DE FORA, MG, BRAZIL
During the period of March of 2000 to July of 2001, we monthly sensed new nests foundation of the Meliponini bees in an urban environment, Juiz de Fora, MG. The number of nests and substrata used forExpand
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Bidirectional systolic arrays for digital recursive filters
TLDR
We derive efficient bidirectional systolic convolution arrays for recursive filters, by interleaving the computation of non-recursive and recursive parts of the filters and by using iteration and retiming techniques. Expand
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Baccharis genistelloides subsp. crispa: caracterização, implantação de banco de germoplasma e resposta à adubação orgânica
.................................................................................................................... ix INTRODUÇÃO GERALExpand
Biologia de Abertura e Fechamento do Tubo de Acesso de Nannotrigona testaceicornis (Lepeletier) (Apidae: Meliponini)
O tubo de acesso ao ninho das abelhas sem ferrao esta relacionado com a defesa, forrageamento e regulacao fisico-quimica, atraves do controle da temperatura e circulacao de ar dentro da colonia. PorExpand