Top Cover
Mostrando 1-12 de 27 artigos, teses e dissertações.
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1. Soil physical properties and soybean productivity in succession to cover crops
ABSTRACT The objective of this research was to assess soybean productivity in succession to cover crops grown during the winter, in addition to assessing physical properties macroporosity (Ma), microporosity (Mi), total porosity (Pt), soil density (Sd) and aggregate stability by means of the following variables: aggregate stability index, geometric mean diam
Rev. Ceres. Publicado em: 03/10/2019
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2. Assessment of the effects of vegetational cover on the long-term stabilityof a waste rock dump
Abstract Waste rock dump reclamation includes re-grading the banks to flatten the overall slope followed by re-vegetation. These measures are required to reduce surface erosion, provide physical stability, and meet future use goals. In some cases, the presence of trees can cause localized shear zones in a waste rock dump by the load of the tree mass and the
REM, Int. Eng. J.. Publicado em: 16/09/2019
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3. The Rio Pardo salient, northern Araçuaí orogen: an example of a complex basin-controlled fold-thrust belt curve
ABSTRACT: The Rio Pardo salient, the large antitaxial curve described by the Araçuaí fold-and-thrust belt along the southeastern edge of the São Francisco craton, is one of the most prominent and one of the least studied features of the Brasiliano Araçuaí-West Congo orogenic system (AWCO). In addition to the Archean/Paleoproterozoic basement, the salien
Braz. J. Geol.. Publicado em: 2018-01
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4. A New Dynamic Powder Consolidation Technique Using Shock Waves
Techniques for shock consolidation of powders have been developed for different purposes, including the synthesis of diamond from carbon powder. In this work, a new device configuration for dynamic consolidation is proposed. It consists of three coaxial tubes, with a conical cover made of explosive at the top of the device. The inner tube contains the powder
Mat. Res.. Publicado em: 13/07/2017
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5. The chemical composition, fermentation profile, and microbial populations in tropical grass silages
The objective of this study was to evaluate the fermentation profile, chemical composition and microbial population and losses in the silages of signalgrass and Mombasa grass fertilized with the following levels of nitrogen (N): 0, 30, 60 and 90 kg/ha. The grasses were harvested at 70 days of regrowth, chopped and then ensiled in laboratory silos that had 20
R. Bras. Zootec.. Publicado em: 2013-09
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6. Estratégias de controle da deterioração aeróbia em silagem de milho e seu valor alimentício para vacas em lactação / Strategies to control top losses in corn silage and the nutritive value responses in Holstein cows
Three experiments were conducted to evaluate different strategies to cover the silo. The experiment I evaluate the fermentation profile and aerobic stability of com silage covered with different types of plastic sheets, applying additives in the top layer and, protecting the fi 1m with soil, to reduce the top losses in com silages. Higher temperature values
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/10/2011
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7. Fatores de degradação ambiental e elementos construtivos na avaliação e monitoramento de escadas no percurso de trilhas no parque estadual turístico do Alto Ribeira / Environmental degradation factors and constructive elements in the assessment and monitoring of stairs in the course of Alto Ribeira Touristic State Park pathways
The trail evaluation and monitoring have been undertaken in detail throughout Brazilian protected areas. However, stairs, as a component of the pathway used by the visitors, are not taken into account. This kind of infrastructure is present more frequently in steeper terrains as where Alto Ribeira Touristic State Park (PETAR) is located, the selected area fo
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/06/2011
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8. Avaliação da rugosidade superficial do solo utilizando técnicas de sensoriamento remoto e análise de imagens / Evaluation of soil surface roughness using remote sensing techniques and analysis of image
To study the top-soil rugosity using the remote sense techniques, we used one area of 1.200 m, divided on three blocks with five treatments each one, where the dimensions of the parcels were from 20 m of length by 3 m of wideness and 1 m between each parcel, and each block had an area of 20 x 18 m. In every block it was made an assortment of the localization
Publicado em: 2009
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9. A literatura e o intelectual na sociedade de consumo : uma leitura de O Zahir, de Paulo Coelho
This research will analyze the occurrence that some writers have used a multitude of factors to gain visibility and legitimize his literary product on the market since the post-modernity ultimately require them to draw a new attitude to the new organization of society, is almost an obligation to redefine its literary, off the top of its cover literature high
Publicado em: 2009
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10. Moraceae Gaudich. de Viçosa, Minas Gerais, Brasil: florística e anatomia foliar de Ficus mexiae Standl / Moraceae Gaudich. of Viçosa, Minas Gerais, Brazil: floristic and leaf anatomy of Ficus mexiae Standl
The present work consists of the floristic study of Moraceae species in Viçosa, of the leaf anatomy, and the histochemical characterization of Ficus mexiae Standl., comparing with the anatomic data in the literature about F. enormis (Miq.) Miq., a species that is similar to F. mexiae. Viçosa is located in the southeastern Brazil, in the state of Minas Gera
Publicado em: 2009
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11. Estratigrafia e petrogênese das sequências vulcânicas paleoproterozóicas na região de São Félix do Xingu (PA), Província Mineral de Carajás / Stratigraphy and petrogenesis of the paleoproterozoic volcanic sequences in the São Félix do Xingu (PA) region, Carajás Mineral Province
Near the São Félix do Xingu city, centersouth portion of the Pará state, in the context of the Carajás Mineral Province, occur extensive Paleoproterozoic volcanoplutonism (1.88 1.87 Ga) exceptionally well-preserved and grouped in the Sobreiro and Santa Rosa formations. These suites are generically correlated to Uatumã Supergroup volcanoplutonism, a magm
Publicado em: 2009
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12. AvaliaÃÃo da retenÃÃo de gases em camadas de cobertura de aterros de resÃduos sÃlidos
Municipal solid waste landfills final covers work as a seal interface between the wastese and the external environment. This sealing layer is also responsible to avoid the infiltration of water into the waste mass and the emission of gases to the atmosphere. These interventions show by they own how important are both project and execution of the top cover as
Publicado em: 2008