Specific Reinforcement
Mostrando 1-12 de 57 artigos, teses e dissertações.
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1. Study of the interaction of concrete walls with the foundation structure
Abstract This article presents a study of the factors that influence the mechanism of soil-structure interaction with a pilot building having concrete walls and their impact on their performance. To illustrate the studies carried out, a numerical modeling of a four-floor concrete wall pilot building was performed, subjected to vertical actions, supported by
REM, Int. Eng. J.. Publicado em: 2021-06
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2. Flexible pavement overlay design of UFJF ring road based on the new Brazilian mechanistic-empirical pavement design method
Abstract The procedures for design and reinforcement projects regarding flexible pavements available in Brazil are mostly based on empirical models developed from studies carried out in specific localities, and therefore, should only be used in cases where equivalent climatic and traffic conditions are observed. The national highway agencies in partnership w
REM, Int. Eng. J.. Publicado em: 2020-12
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3. EDUCAÇÃO RURAL EM PORTUGAL COMO OBJETO DE ESTUDO: POSSIBILIDADES DE ESPECIFICAÇÕES CONCEITUAIS (1990-2018)
RESUMO Os objetivos do presente artigo são contextualizar a educação rural como objeto de estudo e apontar possíveis definições sobre a educação rural em Portugal no decurso da segunda metade do século XX para as duas primeiras décadas do século XXI. Para materializar o estudo, empreendemos revisão e análise da produção bibliográfica portugue
Hist. Educ.. Publicado em: 26/09/2019
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4. Investigating the Effect of Curing in the Chloride Diffusion Coefficient of Conventional Concrete
Concrete is the most used material in the construction industry worldwide. Built concrete infrastructure is exposed to specific environments conditions during the asset’s life, which impose chemical and physical actions that may lead to premature deterioration. Poor concrete durability and corrosion of reinforcement bars are the primary cause of structural
Mat. Res.. Publicado em: 16/09/2019
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5. UNA CONCEPCIÓN INTEGRADORA DE LA MOTIVACIÓN HUMANA
RESUMO As teorias da motivação desenvolvidas no século XX são opostas. Requer-se uma que, sobre a base dos fatos, integre harmonicamente os resultados alcançados. Destacamos a aprendizagem das necessidades, baseado em determinantes orgânicos e adquiridos, mediante o reforço afetivo dos objetos do mundo exterior e das palavras em que se canalizam. Os r
Psicol. Estud.. Publicado em: 10/06/2019
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6. Disidencias sexuales en el sistema escolar chileno: represión e invisibilización
Abstract The objective of the article is to present the results of an investigation carried out on the basis of the registration of complaints of discrimination based on sexual orientation in the Chilean school system between 2009 and 2015. The cadastre of this information, coming from all the regions of the country, was prepared by the Ministry of Education
Educ. Pesqui.. Publicado em: 2017-09
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7. Biting myself so I don’t bite the dust: prevalence and predictors of deliberate self-harm and suicide ideation in Azorean youths
Objective: To characterize non-suicidal self-injury (NSSI) behaviors, methods, and functions as well as suicide ideation in the adolescent population of a Portuguese community in São Miguel Island, Azores. Increasing rates of NSSI behaviors among adolescents have been observed globally, while suicidal behavior has been pointed as a major cause of death dur
Rev. Bras. Psiquiatr.. Publicado em: 30/03/2017
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8. Production of MA956 Alloy Reinforced Aluminum Matrix Composites by Mechanical Alloying
Aluminum matrix composites (AMC) are attractive structural materials for automotive and aerospace applications. Lightweight, environmental resistance, high specific strength and stiffness, and good wear resistance are promising characteristics that encourage research and development activities in AMC in order to extend their applications. Powder metallurgy t
Mat. Res.. Publicado em: 23/10/2015
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9. Mechanical and thermal behavior of polyvinyl alcohol reinforced with aligned carbon nanotubes
ABSTRACTIn recent years, due to their high specific mechanical properties, the polymer matrix composites have been widely used. In particular, carbon nanotubes (CNTs) have been used as reinforcement due to its exceptional mechanical and electrical properties. In this work the mechanical behavior of polyvinyl alcohol (PVA) reinforced with different percentage
Matéria (Rio J.). Publicado em: 2015-09
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10. Role of the amygdala in the reinforcement omission effect
The reinforcement omission effect (ROE) has been attributed to both motivational and attentional consequences of surprising reinforcement omission. Recent evidence suggests that the basolateral complex of the amygdala is involved in motivational components related to reinforcement value, whereas the central nucleus of the amygdala is involved in the processi
Psychol. Neurosci.. Publicado em: 2012-12
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11. Effect of electron beam irradiation on the mechanical properties of buriti fiber
Natural fibers, mainly those lignocellulosic extracted from plants, have, in the past few decades, attracted the attention not only of scientists but also of industrial technologists of our society interested in their engineering materials. As it is well known, uses of natural fiber in clothes carpets, baskets, ropes and low cost construction roofing has exi
Matéria (Rio J.). Publicado em: 2012
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12. Efeito da incorporação de fibras curtas de sílica amorfa em compósitos de polipropileno utilizados pela indústria automotiva nacional. / Effect of the incorporation of short amorphous silica fibers in polypropylene composites used by the national automotive industry.
The addition of silica fibers in polypropylene (PP) composites was investigated on this work as a proposal to develop new materials used in automotive industry, in order to enable the reduction of vehicle weight and the resulting fuel economy. The fibers are lightweight, made of amorphous silica and treated with amine silane for better interaction with the p
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/06/2011