Channel Stability
Mostrando 1-12 de 77 artigos, teses e dissertações.
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1. Characterization of Sobradinho landslide in fluvial valley using MASW and ERT methods
Abstract Landslides can substantially impact the fluvial systems, which is why the continuous mapping of their extent, evolution and stability assessment is crucial. However, in such environments, material identification (e.g. colluvium) and subsurface characterization by the methods used for geologic mapping and geotechnical investigation is often a challen
REM, Int. Eng. J.. Publicado em: 2020-12
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2. Research on Sliding Mode Method about Three-Dimensional Integrated Guidance and Control for Air-to-Ground Missile
ABSTRACT Based on adaptive sliding mode-control and back-stepping design method, an integrated guidance and control method with less calculation is proposed, which is designed for air-to-ground missile during the terminal course in three-dimensional space. The model of the control system with nonlinear and coupling is simplified, then the integrated guidance
J. Aerosp. Technol. Manag.. Publicado em: 14/01/2019
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3. Microstructural Stability of a Niobium Single Crystal Deformed by Equal Channel Angular Pressing
A [211]-oriented niobium single crystal was deformed by equal channel angular pressing (ECAP) at room temperature using the route Bc to a total strain of 9.2. A sharp cube texture develops after ECAP processing. The deformed samples were annealed in vacuum from 400ºC (673 K) to 900ºC (1173 K) for 1 h to evaluate their microstructural stability. Scanning el
Mat. Res.. Publicado em: 13/07/2017
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4. AvaliaÃÃo da estabilidade do canal fluvial em trechos adjacentes a pontes, pontilhÃes e bueiros na bacia hidrogrÃfica do Paranà III - Oeste do Paranà / Evaluation of the channel stability in bridges and culverts in Paranà III watershed, Western Paranà State, Brazil
As obras de engenharia como pontes, pontilhÃes, bueiros tubulares de concreto e bueiros celulares de concreto sÃo consideradas estruturas de transposiÃÃo do talvegue. Elas tÃm como objetivo permitir a passagem de um curso dâÃgua abaixo e alteram as condiÃÃes naturais dos rios, acarretando mudanÃas nos processos fluviais. O nÃvel de estabilidade da
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/05/2012
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5. COMPORTAMENTO DE TALUDE DA MARGEM DO RIO SÃO FRANCISCO SUBMETIDO À TECNICA DE BIOENGENHARIA DE SOLOS. / BEHAVIOR OF THE SLOPE OF THE SÃO FRANCISCO RIVER SUBJECTED TO THE SOIL BIOENGINEERING TECHNIQUE.
The lower San Francisco river had changed their hidrossedimentological behavior by changes in river channel through the impoundment of water reservoirs for the implementation of large hydropower projects. These direct impact on the stability of river banks, demands actions to mitigate the erosion resulting from soil mass movements. Soil bioengineering, which
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 09/02/2012
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6. Comparative analysis of mesoscale convective complexes using models simulations and satellite observations / Análise comparativa de complexos convectivos de mesoescala através de simulações de modelo e observações de satélite
In this study was analyzed the behavior of the Mesoscale Convective Complexes (MCC) that occurred in the South Central region of South America (40°S-15°S and 80°W e 30°W). The period chosen for the study of these systems was between September to March for the years 2007 and 2010. The FORTRAC tool was used to identify MCCs and found 43 systems. The period
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/09/2011
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7. Finite element simulation of viscous fingering in miscible displacements at high mobility-ratios
Numerical simulations of viscous fingering instabilities in miscible displacements at high mobility-ratios are presented. Anisotropic dispersion and monotonic viscosity profiles are considered. The coupled set of partial differential equations is approximated by the semi-discrete SUPG stabilized finite element formulation plus a discontinuity capturing techn
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2010-09
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8. Editorial
This work aims at presenting the challenges that inflation targeting central banks may face since uncertainties represent a harmful element for the effectiveness of monetary policy, and since financial instabilities may disturb the transmission mechanisms - in particular, the expectation channel - and thus the economic stability. Financial stability must not
Brazilian Journal of Political Economy. Publicado em: 2010-03
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9. The increase of complexity in motor learning: effects of stabilization levels and performance channels / Aumento de complexidade na aprendizagem motora: efeitos dos níveis de estabilização e dos canais de desempenho
The purpose of this study was to investigate whether levels of stabilization achieved by the end of the acquisition process and performance channels modify the probability of occurrence of one of the two processes involved in the increase of complexity in motor learning - modularization and adaptation - when new components are inserted into the task already
Publicado em: 2010
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10. Estudo teórico sobre meios de determinação de Áreas de Preservação Permanente (APPs) marginais aos cursos d água através da análise de fatores ambientais no âmbito da bacia hidrográfica: enfoque geomorfológico / Theorical study about the determination of the Permanent Preservation Areas (PPAs) marginal to the water courses through the analysis of the environmental factors in the context of the watershed: geomorphology focus
The Permanent Preservation Areas (PPAs) were imposed by New Brazilian Forest Code in order to ensure the stability of the landscape, water and biotic features. Among the types of PPAs are those which protect the marginal portions of the watercourses, which are currently focuses of environmental conflicts, given its regulatory power that overly restricts the
Publicado em: 2010
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11. Adaption of rapid assessment protocol for the monitoring and environmente assessment to be used in grassland and shrubby grassland / ADEQUAÇÃO DE UM PROTOCOLO DE AVALIAÇÃO RÁPIDA PARA O MONITORAMENTO E AVALIAÇÃO AMBIENTAL DE CURSOS DÁGUA INSERIDOS EM CAMPOS RUPESTRES
This work aims to adapt rapid assessment protocol of rivers in order to be used in grassland and shrubby grassland of the savanna biome of the Minas Gerais highlands (cerrado biome), taking as a reference situation the environmental conditions found in the interior of the Parque Estadual do Itacolomi, Ouro Preto - Minas Gerais, Brazil. Similar protocols have
Publicado em: 2008
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12. Expressão e purificação de proteinas relacionadas a epilepsia / Expression and purification of epilepsy related proteins
Non-ion channel genes, as LGI1 and EFHC1, have been shown to indirectly affect ion channel currents in genetically determined epilepsy syndromes. LGI1 (Leucine-rich, glioma inactivated gene 1) is linked to a rare form of partial epilepsy (autosomal dominant partial epilepsy with auditory features, ADPEAF). Recently, LGI1 protein was associated with ADAM22 in
Publicado em: 2007