259 research outputs found
Cultivo da mandioca na Região Centro-Sul do Brasil.
Cultivo da mandioca na região Centro-Sul do Brasil; Cenário Mundial; Clima; Solos; Cultivares; Plantio; Tratos culturais; Doenças e métodos de controle; Pragas e métodos de controle; Normas gerais sobre o uso de agrotóxicos; Colheita; Custo de produção e preços.bitstream/item/65791/1/SP20046.pd
Avaliação de clones de mandioca visando o processamento industrial em Dourados, MS.
Publicado também na: RAT: Revista Raízes e Amidos Tropicais, v. 3, 2007. (SEP 036)
IAC 576 - cultivar de mandioca de mesa recomendada para Mato Grosso do Sul.
bitstream/item/24714/1/COT200380.pdfDocumento on-line
Genótipos de mandioca de mesa submetidos a manejo orgânico em diferentes regiões no Mato Grosso do Sul.
Publicado também na: RAT: Revista Raízes e Amidos Tropicais, v. 3, 2007. (SEP 034)
The influence of particle surface roughness on elastic stiffness and dynamic response
Discrete-element method (DEM) simulations of planar wave propagation are used to examine the effect of particle surface roughness on the stiffness and dynamic response of granular materials. A new contact model that considers particle surface roughness is implemented in the DEM simulations. Face-centred cubic lattice packings and random configurations are used; uniform spheres are considered in both cases to isolate fabric and contact model effects from inertia effects. For the range of values considered here surface roughness caused a significant reduction in stiffness, particularly at lower confining stresses. The simulations confirm that surface roughness effects can at least partially explain the value of the exponent in the relationship between stiffness and mean confining stress for an assembly of spherical particles. Frequency domain analyses showed that the maximum frequency transmitted through the sample is reduced when surface roughness is considered. The assumption of homogeneity of stress and contacts in analytical micromechanical models is shown to lead to an overestimation of stiffness
Avaliação de clones IAC de mandioca da geração 1996, nas condições edafoclimáticas de Dourados, MS.
Publicado também na: RAT: Revista Raízes e Amidos Tropicais, v. 3, 2007. (SEP 035)
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