Brazilian Rock
Mostrando 13-24 de 55 artigos, teses e dissertações.
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13. Hardening and Stability of Plinthic Materials of the Araguaia River Floodplain under Different Drying Treatments
ABSTRACT Plinthite and petroplinthite occur frequently in Brazilian soils, but there is little information on the behavior of these materials. The aim of the present study was to assess the effect of different drying periods on the hardening and stability of plinthic materials of soils in the floodplain of the Araguaia River and the João Leite stream in Goi
Rev. Bras. Ciênc. Solo. Publicado em: 03/05/2018
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14. Applicability of geomechanical classifications for estimation of strength properties in Brazilian rock masses
ABSTRACT Many authors have been proposed several correlation equations between geomechanical classifications and strength parameters. However, these correlation equations have been based in rock masses with different characteristics when compared to Brazilian rock masses. This paper aims to study the applicability of the geomechanical classifications to obta
An. Acad. Bras. Ciênc.. Publicado em: 2017-06
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15. Genesis of Soils Formed from Mafic Igneous Rock in the Atlantic Forest Environment
ABSTRACT Different parent materials participate in the formation of soils in the hilly landscape of “Mar de Morros” in the Atlantic Forest environment. Those derived from mafic igneous rock (gabbro) frequently show erosion problems because of land use, which is aggravated by the mountainous relief and soil attributes. This study evaluated the main pedoge
Rev. Bras. Ciênc. Solo. Publicado em: 23/06/2016
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16. On the crack propagation analysis of rock like Brazilian disc specimens containing cracks under compressive line loading
The pre-existing cracks in the brittle substances seem to be the main cause of their failure under various loading conditions. In this study, a simultaneous analytical, experimental and numerical analysis of crack propagation, cracks coalescence and failure process of brittle materials has been performed. Brazilian disc tests are being carried out to evaluat
Lat. Am. j. solids struct.. Publicado em: 2014-12
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17. Modeling controlled potassium release from phlogopite in solution: exploring the viability of using crushed phlogopitite rock as an alternative potassium source in Brazilian soil
As propriedades químicas e mineralógicas do flogopitito, uma rocha que contém flogopita, foram estudadas tendo em vista o emprego como fonte alternativa de potássio. A caracterização mineralógica da rocha foi realizada por difratometria de raios X, fluorescência de raios X, microscopia eletrônica de varredura e espectroscopia na região do infraverm
J. Braz. Chem. Soc.. Publicado em: 2013-08
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18. ESTUDO DE UM REATOR SOLAR HÍBRIDO PARA CURA ACELERADA DO CONCRETO EM ÁGUA MORNA. / STUDY OF A HYBRID SOLAR REACTOR FOR ACCELERATED CURING OF CONCRETE IN WARM WATER.
The Portland cement concrete material is the most consumed after the water worldwide due to their versatility molding, strength and durability as a structural material. The curing is the procedure that aims to keep the concrete saturated with water in their early ages and it is essential to ensure the reactions of cement hydration, promoting its consolidatio
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 01/11/2012
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19. Biofertilizante de rochas mais matéria orgânica inoculada com bactéria diazotrófica na cana-de-açúcar.
Sugarcane (Saccharum spp.) Is currently considered one of the most important crops in the Brazilian social and economic. In Pernambuco, the sugar cane industry occupies an important agricultural area with high sugar and ethanol, generating many direct and indirect jobs. For increased productivity becomes necessary the use of management technologies that fost
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/07/2012
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20. Processamento e modelagem de dados geofísicos e imagens ASTER aplicados à interpretação geológica e prospecção mineral na Província Aurífera de Alta Floresta, MT / Processing and modeling of geophysical data and ASTER images applied to geological interpretation and mineral exploration in the Alta Floresta Gold Province, MT
The Alta Floresta Gold Province (AFGP) is located in the central-southern Amazon craton between the limits of the Ventuari-Tapajos (1.95-1.8 Ga) and Rio Negro-Juruena (1.8-1.55 Ga) provinces. In its eastern segment there are more than one hundred gold deposits hosted in volcanic and plutonic rocks and concentrated along the Peru-Trairao Belt in a NW-SE direc
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/02/2012
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21. Sá, Rodrix e Guarabyra: os parceiros da música bonita (1965-1980)
O trio musical Sá, Rodrix e Guarabyra e o estilo musical criado por eles, o chamado rock rural, serão estudados nesta dissertação. O grupo, formado na década de 1970, teve uma trajetória artística permeada por canções que perceberam um Brasil em transformação no cenário político e social. Mediante a análise de suas canções e entrevistas, se b
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/10/2011
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22. O ritual e os símbolos: a realização dos grafismos rupestres na região do município de Camalaú (PB)
This work aims to infer the relationship between the realm of myth with the production of rock graphics, ie, whether the production of these graphics are rituals linked to a mythic structure whatever, being able to express a sacred dimension. Through authors such as Eliade (1991, 1983, 2007, 2008 a, 2008 b), Leroi-Gourhan (2007), Levi-Strauss (1996, 2007, 20
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 01/10/2011
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23. Prováveis significados paleoambientais das pinturas rupestres zoomorfas do parque nacional serra da Capivara PI. / Possible meanings of paleoenvironmental zoomorphic paintings of the National Park of Capybara - PI.
In Serra da Capivara National Park and adjacencies there is a wide range of archeological sites which provides diverse information about the first human settlements in America since it holds many characteristics from their existence in different ecosystems of the region. There are more than 1,000 registered sites (not definitive) in the park, about 657 of th
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/09/2011
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24. Elementos para uma análise semiótica da ideologia / Elements for a semiotic analysis of ideology
Este nosso trabalho pretende estudar a questão da ideologia presente em letras de rock brasileiro das décadas de 1980 e 1990, em que o país passava por transformações sociais que viriam a ter impacto no modo de pensar da população e em seu discurso. As análises foram feitas em dois blocos: o primeiro, que compreende A canção do senhor da guerra, M�
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/03/2011