Caracterização de cinco linhagens de soja em Aral Moreira, MS, safra 1998/99.

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Influência da população de plantas e de épocas de semeadura sobre o comportamento da soja, em Dourados, MS, safra 2000/2001.

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Proposta metodológica para análise de fósforo em tecido foliar visando a redução do volume de resíduo gerado.

19º MET

Rendimento de grãos de soja em semeadura tardia.

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The effect of concrete strength and reinforcement on toughness of reinforced concrete beams

The objective pursued with this work includes the evaluating of the strength and the total energy absorption capacity (toughness) of reinforced concrete beams using different amounts of steel-bar reinforcement. The experimental campaign deals with the evaluation of the threshold load prior collapse, ultimate load and deformation, as well as the beam total energy absorption capacity, using a three point bending test. The beam half span displacement was measured using a displacement transducer, and the applied force was monitored using a load cell. The tested samples consists on a set of ten reinforced concrete beams having three different levels of steel-bar-reinforcement percentages and four different concrete compositions (i.e., giving rise to a different values of concrete strength). It was observed that the most influential parameter in the beams energy absorption capacity is the amount of steel-bar reinforcement. The results have presented good agreement between themselves. In fact, for beams with a given concrete compressive strength, a decrease in beam’s deformation was measured for higher steel-bar-reinforcement percentages. Moreover, the results had shown that for a particular steel-bar-reinforcement percentage, the concrete compressive strength have also influence in the total energy absorption capacity of the beam

Comportamento da variedade de soja BRS 181 na região sul do estado de Mato Grosso do Sul, safra 1998/99.

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Water balance in Haplic Cambisols under forest and pasture in the Bonfim watershed: mountainous region of Rio de Janeiro state.

To estimate the water volumes of the main components of BH in a Haplic Cambisol in forests and pastures in the Bonfim River basin, mountainous region of RJ. Estimar os volumes de água dos principais componentes do BH num Cambissolo Háplico em florestas e pastagens na bacia do Rio Bonfim, região serrana do RJ.Também publicado em português. Título em português: Balanço hídrico em Cambissolos Háplicos sob florestas e pastagens na bacia hidrográfica do Bonfim: região serrana do estado do Rio de Janeiro