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Mostrando 1-12 de 18 artigos, teses e dissertações.
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1. Plate with holes as shear connector in cold formed steel composite beams
Resumo Buscando compatibilizar as estruturas em perfil formado a frio com os sistemas de piso com pré-laje, foi proposta nesse trabalho uma alternativa de conector de cisalhamento para vigas mistas compostas por perfil formado a frio que visa maximizar a área disponível para apoio das pré-lajes durante o processo construtivo. Trata-se de um conector em c
Rev. IBRACON Estrut. Mater.. Publicado em: 18/07/2019
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2. Numerical Analysis of an Intercity Bus Structure: A Simple Unifilar Model Proposal to Assess Frontal and Semifrontal Crash Scenarios
Abstract To improve the safety of the intercity bus structure against impact scenarios and to reduce the injuries and death in traffic accidents it is crucial in a country with continental dimensions like Brazil, where the road transport matrix is fundamental in the traffic of people and goods. In this context in the present article, a numerical model of an
Lat. Am. j. solids struct.. Publicado em: 2016-09
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3. Comparison of the effects of TripleGates and Gates-Glidden burs on cervical dentin thickness and root canal area by using cone beam computed tomography
The search for new instruments to promote an appropriate cervical preparation has led to the development of new rotary instruments such as TripleGates. However, to the best of the authors' knowledge, there is no study evaluating TripleGates effect on the “risk zone” of mandibular molars. Objectives : The aim of this study was to evaluate the effects of a
J. Appl. Oral Sci.. Publicado em: 2015-04
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4. Optimization of concrete I-beams using a new hybrid glowworm swarm algorithm
In this paper a new hybrid glowworm swarm algorithm (SAGSO) for solving structural optimization problems is presented. The structure proposed to be optimized here is a simply-supported concrete I-beam defined by 20 variables. Eight different concrete mixtures are studied, varying the compressive strength grade and compacting system. The solutions are evaluat
Lat. Am. j. solids struct.. Publicado em: 2014-12
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5. Panorametry : suggestion of a method for mandibular measurements on panoramic radiographs
Background: Orthopantomography (panoramic radiography) has been used for the study of measurements involving particularly the prediction of the eruption of impacted lower third molars and analyses of measurements of the ramus and head of mandible. The discrepancies involved with the projection of this radiographic image has stimulated the search for further
Publicado em: 2010
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6. Purificação de silicio metalurgico por fusão zonal horizontal em forno de feixe de eletrons / Purification of metallurgical silicon by horizontal zone melting in an electron beam furnace
The search for renewable energy sources has caused a boom in the production of solar cells in this decade, which rose from 0.3 GW in 2002 to 6.0 GW in 2008, totaling 37 billion dollars in 2008. The production of Electronic Grade Silicon (SiGE) increased 127% from 2007 to 2008, and approximately 90% of solar cells produced nowadays use SiGE, which is responsi
Publicado em: 2009
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7. Recommendations for thermal comfort for architectural design and deployment of housing units in rural settlements : case rural settlement Sepé Tiaraju, Serra Azul, SP / Recomendações de conforto térmico para projeto arquitetônico e implantação de unidades habitacionais em assentamentos rurais : caso assentamento rural Sepé Tiaraju, Serra Azul-SP
The architectural design and implementation of housing units in rural settlements, that include the participation of involved families in decision-making processes, are conditioned by some criteria or variables, such as: the limitation of governmental resources for financing low income families, the existence of a program with very specific needs, besides th
Publicado em: 2009
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8. CRYSTALLINE FLUORIDE FIBER LASER AND CHARACTERIZATION OF RARE EARTH DOPED FIBERS / Laser de fibra monocristalina de fluoretos e caracterização de fibras dopadas com terras raras
Diode pumped solid state lasers have supplied a large part of the search for high power lasers, with good beam quality, in addition, these lasers are useful for generation of visible laser radiation. Fiber lasers have the capacity to reach these high powers with a good beam quality, due to its special design which confines the radiation through long fiber le
Publicado em: 2008
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9. Study of adhesion time, temperature and gluing pressure on shear strength of Eucalyptus grandis wood glued with adhesive solvent free / Estudo do tempo de adesão, da temperatura e da pressão de colagem na tensão limite de cisalhamento de uniões de madeira de Eucalyptus grandis coladas com adesivo sem solvente
The use of glu-lam is a viable alternative for exploitation of all wood potential presenting a series of advantages. The linking between layers however has a basic paper in glu-lam good quality. Therefore for a good performance of glu-lam structures it is fundamental the choice of an adhesive which has a great mechanics resistance and also resistance to the
Publicado em: 2007
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10. Bicho-mineiro do cafeeiro: anÃlise da digestÃo e inibiÃÃo de tripsina por extratos de folhas de mamona. / Coffee leaf miner: Digestion and trypsin inhibition using castor beam leaves extracts.
Coffee is a crop of great social and economic importance to Brazil and its production is affected by a number of pests and diseases. One of those pests is the coffee leaf miner, Leucoptera coffeella (GuÃrin-MÃneville, 1842) (Lepidoptera: Lyonetiidae) which can cause great losses in production. The forms of controlling the coffee leaf miner known and utiliz
Publicado em: 2007
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11. Sistema de apoio à decisão para programação da produção em fundições de mercado
Este trabalho tem por objetivo propor um sistema de apoio à decisão (SAD) para elaboração da programação da produção em fundições que trabalham com produtos personalizados sob encomenda, também conhecidas como fundições de mercado. Para isto, o ambiente produtivo das fundições de mercado é estruturado por meio do sistema de controle da produ�
Gestão & Produção. Publicado em: 2006-05
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12. Nuclear reaction studies with exotic boron beams
Spectroscopic investigation, on exotic nuclei, performed in two different experiments with secondary radioactive boron beams are discussed. Spectroscopic factors for the 13B+n bound-states are obtained by measuring momentum distribution of the 13B residual nucleus from knockout reaction of the 14B beam at intermediate energy. The momentum distributions are m
Brazilian Journal of Physics. Publicado em: 2004-09