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The effects of cover crops and conventional tillage on soil and runoff loss in ...

Gómez, J.A.; Llewellyn, C.; Basch, G.; Sutton, P.B.; Dyson, J.S.; Jones, C.A.

Cover crops (CC) in vineyards and olive groves provide an alternative to conventional tillage (CT) for land management. Runoff, sediment and nutrient loss from six sites in France, Spain and Portugal were compared over 3–4 yr. In general, runoff loss was not significantly reduced by the CC alternatives: average annual runoff coefficients ranged from 4.9 to 22.8% in CT compared with 1.9– 25% in the CC alternatives...


Compilation of parameterized seismogenic sources in Iberia for the SHARE Europe...

Nemser, E.S.; García-Mayordomo, J.; Cabral, J.; Fonseca, J.; Martínez-Díaz, J.J.; Alfaro García, P.; Àlvarez Gómez, J.A.; Atakan, K.

Abstract: SHARE (Seismic Hazard Harmonization in Europe) is an EC-funded project (FP7) that aims to evaluate European seismic hazards using an integrated, standardized approach. In the context of SHARE, we are compiling a fully-parameterized active fault database for Iberia and the nearby offshore region. The principal goal of this initiative is for fault sources in the Iberian region to be represented in SHARE...


Compilation of parameterized seismogenic sources in Iberia for the SHARE Europe...

Nemser, Eliza; García-Mayordomo, J.; Cabral, João; Fonseca, J. F. B. D.; Martínez-Díaz, J. J.; Alfaro García, Pedro; Álvarez-Gómez, J. A.; Atakan, K.

Data: 2010   |   Origem: Repositório do LNEG

First principle calculation of potential and multi-channel transport in Fe/MgO/...

Ujevic,Sebastian; Gómez,J. A.; Larkin,Ivan A.

In this work we studied the behavior of multi-channel tunneling through a realistic Fe/MgO/Fe hetero-junction ab initio potential. For this purpose we obtained Fe/MgO/Fe(001) hetero-junction effective potentials using the full potential-linear augmented plane wave WIEN2k code together with the generalized gradient approximation for the exchange-correlation potential. Multi-channel tunneling through the Fe/MgO/F...

Data: 2009   |   Origem: OASIS br

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Fundação para a Ciência e a Tecnologia Universidade do Minho   Governo Português Ministério da Educação e Ciência Programa Operacional da Sociedade do Conhecimento União Europeia