Comparative Modeling
Mostrando 13-24 de 95 artigos, teses e dissertações.
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13. Contribuição ao estudo da estabilidade de edifícios de andares múltiplos em aço / Contribution to the study of stability of steel multi-storey buildings
This work presents a comparative analysis of different structural systems for a 20-storey building. Each model has been designed using the principles of the direct analysis method (DAM), present in the ABNT NBR 8800:2008. The first-order amplification method (FOAM) was used to obtain, in a simplified manner, the forces acting on the building elements, includ
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/08/2012
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14. Modelagem e avaliação comparativa dos métodos Luus-Jaakola e R2W aplicados na estimativa de parâmetros cinéticos de adsorção / Modeling and comparative evaluation of Luus-Jaakola and R2W methods applied in estimating kinetic parameters of adsorption
As técnicas inversas têm sido usadas na determinação de parâmetros importantes envolvidos na concepção e desempenho de muitos processos industriais. A aplicação de métodos estocásticos tem aumentado nos últimos anos, demonstrando seu potencial no estudo e análise dos diferentes sistemas em aplicações de engenharia. As rotinas estocásticas sã
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/06/2012
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15. A Methodology to forecast air transportation demand with alternative econometric models
This thesis presents a methodology using a portfolio of time-series models, from conventional ARMA to a regime-changing framework. The objective is to develop an air transportation demand modeling to inspect potential structural breaks in the Brazilian market, due to solve underlying issues of new demand creation. Out-of-sample forecasting is used to generat
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/05/2012
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16. Um estudo comparativo de mÃtodos de simulaÃÃo de tecidos virtuais atravÃs de sistemas de partÃculas / A comparative study of methods for simulation of virtual fabrics with particulate systems
Physically based cloth animation has gained much attention from researchers in the last two decades, due to the challenges of realism and performance placed by the film and game industries, as well as by the applications of virtual reality and e-commerce. Consequently, there have been overwhelming achievements in this area, and several approaches have been p
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/03/2012
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17. A criação de alegorias de carnaval : das relações entre modelagem matemática, etnomatemática e cognição
This research provides a comparative analysis among the creation processes of carnival floats, mathematical modeling procedures, mental models and ethnomathematics. It was found, through interviews with the carnival, the responsible person for designing and building floats for a samba school parade that these procedures are closely linked. It was also indica
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/03/2012
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18. Differentiated risk models in portfolio optimization: a comparative analysis of the degree of diversification and performance in the São Paulo Stock Exchange (BOVESPA)
Faced with so many risk modeling alternatives in portfolio optimization, several questions arise regarding their legitimacy, utility and applicability. In particular, a question arises involving the adherence of the alternative models with regard to the basic presupposition of Markowitz's classical model, with regard to the concept of diversification as a me
Pesqui. Oper.. Publicado em: 28/06/2012
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19. Gestão do turismo em território de grande densidade religiosa: o caso do Novo México.
This dissertation explores relationships between tourism and religious identities hoping to contribute to the broadening of theoretical perspectives on tourism development and cultures. It assumes that many tourist destinies include temples and local religious festivals throughout the world even if the choice for the travel was not reflecting the primary rel
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/07/2011
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20. The effect of adding boron in solidification microstructure of dilute iron-carbon alloy as assessed by phase-field modeling
Alloying element like boron, even in small addition, is well known to improve hardenability of steels. Its application can improve mechanical properties of steels and reduce alloying costs. Despite these benefits is not easy to cast boron steels, mainly in dynamical solidification process like continuous casting, due to their crack susceptibility1,2. The str
Materials Research. Publicado em: 20/05/2011
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21. The using of modeling and simulation for the performance comparative analysis between functional layout and distributed layout / Utilização da modelagem e simulação para fins de análise comparativa de desempenho entre o arranjo físico funcional e o arranjo físico distribuído
Recently researches related to new production systems have been proposed in the literature since traditional ones can not attend efficiently to the new profiles of market (especially characterized by higher variety and variability of demand). In the distributed layout, one of the proposed in the literature, machines are scattered on the floor to make possibl
Publicado em: 2010
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22. Behavior analysis of bar gaps in welded YT-joints for rolled-steel circular hollow sections
We present a parametric analysis of gap variation between the lap brace and through brace of YT welded joints for rolled-steel circular hollow sections on plane steel structures. Our aim is to investigate the collapse behavior of YT-joints under lap brace axial compression. In particular, we focus on e/d0 ratios above 0.25 so bending moments can be taken int
Latin American Journal of Solids and Structures. Publicado em: 2010
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23. Metabolic Network Comparison of Bacteria in the Context of Symbiosis / Análise Comparativa de Redes Metabólicas de Bactérias no Contexto da Simbiose
Simbiose é a associação permanente entre dois ou mais organismos de espécies distintas, pelo menos durante uma parte do ciclo de vida. Existe uma grande diversidade de casos de simbiose, os quais são frequentemente classificados de acordo com os benefícios ou deficits no valor adaptativo do hospedeiro, i.e., mutualismo, comensalismo ou parasitismo. Out
Publicado em: 2010
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24. Contrastes cotidianos: os engenhos açucareiros do norte da Argentina como complexos sócio-culturais
This article explores patterns of social life in the sugar plantations of northern Argentina between 1870 and 1930, resulting from the interplay of a number of variables including the hierarchical arrangement of space, organization and working patterns, the measures taken by owners or strategies of modeling (with purposes of "civilizing") workers' behavior,
Varia Historia. Publicado em: 2009-06