Volumetric Ring
Mostrando 1-12 de 12 artigos, teses e dissertações.
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1. CORRELATION OF SOIL PHYSICAL ATTRIBUTES WITH FURROWING SHANK STRENGTH AND DEPTH IN A NO-TILL SEEDER
ABSTRACT Furrowing shank horizontal strength and working depth can be correlated with soil compaction in a no-till sowing. This study aimed to evaluate the correlation of furrowing shank strength and working depth with soil physical properties at two working speeds (1.58 and 1.87 m s-1) and four compaction levels induced by an agricultural tractor (0P, 1P, 3
Engenharia Agrícola. Publicado em: 2022
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2. Use of PVC pipes to determine bulk density for irrigation management
RESUMO A irrigação tem grande importância para a produção de alimentos, sendo responsável por consumir grande parcela da água usada nas atividades humanas. Isto torna fundamental o manejo racional do uso da água. Para tal, a determinação da densidade do solo é importante e precisa ser realizada de forma simples e menos honerosa possível, mantendo
Rev. Ciênc. Agron.. Publicado em: 2019-03
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3. Silorane- and high filled-based"low-shrinkage" resin composites: shrinkage, flexural strength and modulus
This study compared the volumetric shrinkage (VS), flexural strength (FS) and flexural modulus (FM) properties of the low-shrinkage resin composite Aelite LS (Bisco) to those of Filtek LS (3M ESPE) and two regular dimethacrylate-based resin composites, the microfilled Heliomolar (Ivoclar Vivadent) and the microhybrid Aelite Universal (Bisco). The composites
Braz. oral res.. Publicado em: 01/03/2013
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4. Análise morfofuncional cardíaca com o uso da ecocardiografia tridimensional em tempo real em indivíduos submetidos à plastia valvar mitral pela técnica de duplo teflon / Cardiac morphologic and functional analysis using real time tridimensional echocardiography in individuals submitted to mitral valve repair by double teflon technique
INTRODUCTION: Mitral valve repair is the treatment of choice to correct mixomatous mitral insufficiency. Tridimensional echocardiography studies demonstrate that mitral repair using prosthetic ring implant modifies mitral valve annulus morphology and function, although the literature related to mitral valve annulus behavior after mitral repair without use of
Publicado em: 2010
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5. Influência das condições de alimentação de glicerol e ornitina na produção de ácido clavulânico por Streptomyces clavuligerus / Influência das condições de alimentação de glicerol e ornitina na produção de ácido clavulânico por Streptomyces clavuligerus
The clavulanic acid (CA) is a powerful inhibitor of β-lactamases, enzymes that clives the β- lactam ring of penicillins and cephalosporins, inactivating these compounds. CA is traditionally produced by Streptomyces clavuligerus in batch and fed-batch cultivations. Considering that the products of the catabolism of easily assimilable carbon source r
Publicado em: 2008
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6. Avaliação da densidade de um Planossolo submetido a diferentes sistemas de cultivo ao longo do tempo através da Tomografia Computadorizada. / Long-term evaluation of the bulk density of an Albaqualf submitted to different cultivation systems with Computerized Tomography.
The agricultural sustainability of the rice (Oryza sativa L.) cultivation in lowland soils is based on the use of different cultivation systems and cultures, needed for a more efficient red and black rice control. The effects of these systems on the soil attributes, mainly in the long run, deserve deeper studies, particularly compaction. The present work had
Publicado em: 2007
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7. "Tomografia computadorizada, atenuação de raios gama e análise micromorfológica na avaliação de alterações na estrutura e retenção de água pelo solo" / Computed tomography, gamma-ray attenuation, and micromorphologic analysis to evaluate changes on soil structure and water retention
Soil structure is related to the arrangement of soil particles, aggregates, and pores, which makes part of this porous media. The influence of structure on soil physical phenomena ranges from macro to microscope scale. Structure changes in microscope scale are important because affect the soil particle arrangement and, consequently, the pores distribution. S
Publicado em: 2006
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8. Synthesization of thermally induced errors in coordinate measuring machines
This work presents the equations for the components of the volumetric error of a Coordinate Measuring Machine (CMM) considering thermal influences. These equations were applied to a moving bridge CMM and combines homogeneous transformations, regression techniques and least squares algorithm. The magnitudes of both the geometric errors and its thermally induc
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2005-06
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9. Projeto, ConstruÃÃo e ValidaÃÃo de um Sistema de CompressÃo Uniaxial para Estimativa da CompactaÃÃo do Solo
The compaction of the agricultural soils has worldwide importance because of the increasing of the farm with machinery resulting in the increasing of heavy machines for cultivation system, mainly, in the developed countries. The term, soils compaction refers to the compression carried out on the non-saturated soil, during which an increase of bulk density ex
Publicado em: 2005
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10. Influence of Feeding Conditions on Clavulanic Acid Production by Streptomyces clavuligerus in Fed Batch Cultivations / Influência das condições de alimentação do meio suplementar na produção de ácido clavulânico por Streptomyces clavuligerus em batelada alimentada.
The clavulanic acid (CA) is an important inhibitor of β-lactamases, enzymes that clives the β-lactam ring of penicillins and cephalosporins, inativating these compounds. CA is traditionally produced by Streptomyces clavuligerus in batch (B) or feed batch (FB) cultivations. Considering that the products of easily assimilable catabolic carbon source
Publicado em: 2004
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11. Variabilidade espacial da umidade da densidade do solo em um latossolo roxo
The objetives of this work are: a) the study of the variability of the soil moisture eontent and of the bulk density through elassieal statisties methods and geostatisties; b) enphasite the importanee of representative sampling in soils and eheeking assumption eoneerning the independenee of samples and homogeneity of soils; e) evaluation the water eontent di
Publicado em: 1993
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12. Storage function of cartilage oligomeric matrix protein: the crystal structure of the coiled-coil domain in complex with vitamin D3
The five-stranded coiled-coil domain of cartilage oligomeric matrix protein (COMPcc) forms a continuous axial pore with binding capacities for hydrophobic compounds, including prominent cell signalling molecules. Here, we report the X-ray structure of the COMPcc domain in complex with vitamin D3 at 1.7 Å resolution. The COMPcc pentamer harbours two molec
Oxford University Press.