86 research outputs found
Reconsolidation of the soil surface after tillage discontinuity, with and without cultivation, related to erosion and its prediction with RUSLE
Método para a estimativa da cobertura do solo e da altura do dossel de algumas culturas de verão
Virtual Compton Scattering and Neutral Pion Electroproduction in the Resonance Region up to the Deep Inelastic Region at Backward Angles
We have made the first measurements of the virtual Compton scattering (VCS)
process via the H exclusive reaction in the nucleon resonance
region, at backward angles. Results are presented for the -dependence at
fixed GeV, and for the -dependence at fixed near 1.5 GeV.
The VCS data show resonant structures in the first and second resonance
regions. The observed -dependence is smooth. The measured ratio of
H to H cross sections emphasizes the different
sensitivity of these two reactions to the various nucleon resonances. Finally,
when compared to Real Compton Scattering (RCS) at high energy and large angles,
our VCS data at the highest (1.8-1.9 GeV) show a striking -
independence, which may suggest a transition to a perturbative scattering
mechanism at the quark level.Comment: 20 pages, 8 figures. To appear in Phys.Rev.
Tolerância de perda de solo por erosão para os principais solos do estado de Santa Catarina
Relative reduction in annual soil loss in micro watersheds due to the relief and forest cover
A erosividade das chuvas em Fortaleza (CE): I - distribuição, probabilidade de ocorrência e período de retorno - 1ª aproximação
Rugosidade superficial do solo formada por escarificação e influenciada pela erosividade da chuva
Surface and subsurface decomposition of a desiccated grass pasture biomass related to erosion and its prediction with RUSLE
Hadronic contributions to of the leptons and to the effective fine structure constant
The hadronic contributions to the anomalous magnetic moments of the leptons
and to the effective fine structure constant at the Z-mass are reevaluated
using all presently available data.Comment: 36 pages, 11 Postscript figures, available at
ftp://129.129.40.58/pub/preprints/vapogm2.ps.g
Spatial distribution of water erosion risk in a watershed with eucalyptus and Atlantic Forest
- …