Fire
Mostrando 1-12 de 649 artigos, teses e dissertações.
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1. Finite element computational development for thermo-mechanical analysis of plane steel structures exposed to fire
Abstract This article presents a numerical formulation based on finite element procedures for application in nonlinear thermo-mechanical analyses of steel planar structures under fire condition. The mechanical properties of structural elements degrade when subjected to high temperatures, resulting in significant reductions in strength and stiffness. Under th
REM - International Engineering Journal. Publicado em: 2022
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2. Fire performance in buildings: academic insights and perspective analysis
Resumo: Com o acelerado crescimento da urbanização e consequente aumento do número de edificações, houve acréscimo de projetos e construções céleres, sem critérios mínimos que possibilitem o bom desempenho do edifício e como se comporta durante episódios de incêndios. Nesse cenário, este trabalho tem como objetivo analisar tendências em pesqu
Interações (Campo Grande). Publicado em: 2022
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3. Effects of fire on soil organic matter in northern Amazonian forest fragments
RESUMO Incêndios florestais incorporam matéria orgânica pirogênica ao solo, afetando as características da matéria orgânica do solo (MOS), devido a sua alta aromaticidade. Porém, os fatores que controlam a composição química e a estrutura da matéria orgânica pirogência ainda são pouco conhecidos. Fragmentos florestais dispersos em uma matriz d
Acta Amazonica. Publicado em: 2022
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4. Optimum design of steel columns filled with concrete via genetic algorithm: environmental impact and cost analysis
Abstract The use of concrete-filled tubular columns as part of structural systems has steadily increased throughout the years. The growing demand for structural elements of this nature is a direct result of the possibility to use various cross-section shapes that have increased strength, along with resistance to fire and other corrosive agents. The main obje
REM - International Engineering Journal. Publicado em: 2022
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5. Introduction of Induction Heating is too late for older residents with difficulty in handling fire
RESUMO. Erros no manuseio de artigos domésticos muito aquecidos, por exemplo, panelas, podem resultar em acidentes graves, que podem ser causados por diminuição da atenção ou de funções executivas. Objetivo: Manuais de várias cidades sugerem simplesmente o uso de fogões de aquecimento por indução (FAI), mas esses aparelhos requerem uma operação
Dementia & Neuropsychologia. Publicado em: 2022
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6. MEMORY AND TESTIMONY IN EXTRAORDINARY TIMES
Abstract This paper analyzes two parallel and opposed testimonies of mass annihilation in World War II: Primo Levi’s report of his gruesome experiences in Auschwitz, in The Drowned and the Saved; the testimony of the fire-bombing of Dresden, that killed 130,000 civilians in 1945, recorded by a young American POW, private Kurt Vonnegut Jr, in his novel Slau
Ilha Desterro. Publicado em: 2021-08
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7. Efeito de retardantes de fogo sobre a germinação de espécies florestais tropicais
Resumo Objetivou-se avaliar o efeito de diferentes concentrações de retardantes de fogo e de um polímero hidrorretentor sobre a germinação de sementes das espécies florestais tropicais Handroanthu simpetiginosus (ipê-rosa), Tabebuia roseoalba (ipê-branco), Enterolobium schomburgkii (faveira) e Schizolobium parahyba var. amazonicum (paricá). Destaca-
Ciênc. Florest.. Publicado em: 2021-06
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8. Efeitos de retardantes de fogo sobre a emergência e crescimento inicial de Handroanthus ochraceus (cham.) Mattos e Tabebuia roseoalba (Ridl.) Sandwith
RESUMO Objetivou-se avaliar os efeitos de retardantes de fogo de curta duração e de um polímero hidrorretentor sobre a emergência e crescimento inicial de Handroanthus ochraceus e Tabebuia roseoalba, em condições de ambiente protegido. Foram realizadas aplicações via substrato na semeadura e com intervalos quinzenais, dos seguintes retardantes de fog
Ciênc. Florest.. Publicado em: 2021-03
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9. Multivariate Optimization of Extraction Variables of PAH in Particulate Matter (PM10) in Indoor/Outdoor Air at Campos dos Goytacazes, Brazil
Polycyclic aromatic hydrocarbons (PAH) are products of incomplete combustion of biomass and fossil fuels, that are produced on a larger scale by anthropogenic sources. Burning sugarcane plantations can be a source of atmospheric PAH in regions where this culture predominates. Campos dos Goytacazes, Brazil, is surrounded by sugarcane crops that still use fire
J. Braz. Chem. Soc.. Publicado em: 2021-03
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10. X-ray Scattering and Chemometrics as Tools to Assist in the Identification of Gunshot Residues by Wavelength Dispersive X-ray Fluorescence Spectrometry
Wavelength dispersion X-ray fluorescence spectrometry (WDXRF) is a non-destructive technique and therefore attractive for gunshot residues (GSR) analysis. It is well known for determination of inorganic constituents of samples. However, X-ray scattering region spectral data is not commonly used, although it may provide information about organic constituents
J. Braz. Chem. Soc.. Publicado em: 2020-12
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11. Effect of fire under the soils on the organization of communities of three remnants of Amazonian savannas
ABSTRACT Areas of cerrado (Brazilian savanna) in the Amazon have been poorly studied from the perspective of fire impacts on environmental sustainability, especially with regard to disturbances to soil and vegetation structure. This study aimed to analyze the influence of edaphic variables and fire together on the composition and structure of tree and shrub
Acta Bot. Bras.. Publicado em: 2020-09
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12. Structural assessment of a population of Anacardium humile subjected to fire during different periods of the year
ABSTRACT Understanding how fire affects the plant biota of the Cerrado is essential for formulating conservational strategies. We evaluated the effects of fires during different periods of the year on the populational structure of Anacardium humile. The research was carried out in areas of typical cerrado stricto sensu in the territory of the Kalunga, state
Acta Bot. Bras.. Publicado em: 2020-06