26 documents found, page 1 of 3

Computational Fluid Dynamic Modelling of Fully-Suspended Slurry Flows in Horizo...

This research work is a significant step toward further understanding of the β-σ two-fluid model for the simulation of fully-suspended slurry flows in pipeline systems, with the goal of enhancing its potential for scientific research and engineering applications. Particularly, the focus of the study is the characterization and handling of the two main empirical coefficients of the model, namely, β and σ, which ...

Electrical Tomography: A Review of Configurations, and Application to Fibre Flo...

Understanding the behaviour of suspension flows continues to be a subject of great interest considering its industrial relevance, regardless of the long time and e ort dedicated to it by the scientific and industrial communities. Information about several flow characteristics, such as flow regimen, relative velocity between phases, and spatial distribution of the phases, are essential for the development of exa...

Parenting Styles, Internalization of Values and Self-Esteem: A Cross-Cultural S...

The present study analyzes the impact of parenting styles on adolescents’ self-esteem and internalization of social values in three countries, Spain, Portugal and Brazil. The sample of the study was comprised of 2091 adolescents from Spain (n = 793), Portugal (n = 675), and Brazil (n = 623) from 12–18 years old (52.1% females). The four types of parenting styles, authoritative, indulgent, authoritarian and negl...

Researching Parental Socialization Styles across Three Cultural Contexts: Scale...

Recent research that relates parenting with adolescent adjustment has shown the importance of considering the cultural context of the relationship. New results are emerging when considering the classical four-typologies model of parental socialization in some European and South-American countries. Among the instruments used in this emergent research is the Parental Socialization Scale ESPA29. This scale is a bi...

CFD simulation of a turbulent fiber suspension flow – a modified near-wall trea...

Padrões de crescimento econômico e seus impactos sobre a desigualdade

A presente pesquisa investigou a relação entre crescimento econômico e distribuição de renda na América Latina e nos países em desenvolvimento. Ao contrário da literatura sobre o tema, a qual busca estabelecer uma relação causal entre desigualdade e crescimento, a preocupação foi identificar as conseqüências de distintos processos de crescimento econômico sobre a distribuição funcional e pessoal da renda. Como ...

Cultural Differences in Attitudes Toward Action and Inaction : The Role of Dial...

The current research examinedwhether nations differ in their attitudes toward action and inaction. Itwas anticipated that members of dialectical EastAsian societies would show a positive association in their attitudes toward action/inaction.However,members of nondialectical European-American societieswere expected to showa negative association in their attitudes toward action/inaction. Young adults in 19 nation...

A evolução da produtividade total de fatores na economia brasileira: uma anális...

This research applies a stochastic frontier production model to Brazilian manufacturing, construction, commerce and service industries, in order to identify the sources of growth of main economic activities in Brazil: capital accumulation, labor employment and total factor productivity (TFP). Following Kumbhakar (2000), we also propose a decomposition of the TFP growth into technical progress, changes in techni...

Social choice and irreducible values: a political economy approach of ideology

In the present paper, we prove that any social choice function satisfies Arrow s principle of Independence of Irrelevant Alternatives (IIA) if individual behavior is menu-dependent. Therefore, Arrow s General Possibility Theorem is not valid when individual preferences are determined by irreducible values. In this context, any aggregation device which satisfies Non-dictatorship and Paretian Unanimity principles...

Flow dynamics of pulp fiber suspensions

The transport between different equipment and unit operations plays an important role in pulp and paper mills because fiber suspensions differ from all other solid-liquid systems, due to the complex interactions between the different pulp and paper components. Poor understanding of the suspensions’ flow dynamics means the industrial equipment design is usually conservative and frequently oversized, thus contrib...