Fire Exposure
Mostrando 13-24 de 29 artigos, teses e dissertações.
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13. An investigation on graphene and nanoclay effects on hybrid nanocomposites post fire dynamic behavior
This paper deals with the post fire behavior of hybrid nanocomposites under dynamic loadings. A series of tests were performed to investigate how nanoparticles (i.e. nanoclay and graphene nanosheets) affect the post-fire overall composite behavior. Carbon fiber/epoxy-nanoclay and carbon fiber/epoxy-graphene nanosheets were manufactured. The nanoparticles emp
Materials Research. Publicado em: 2010-06
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14. Estudo experimental do comportamento mecânico e da microestrutura de um concreto convencional após simulação das condições de incêndio
Most of the research for studying concrete in fire uses test methods based on steady state temperature, when occur the stability of temperature in the specimens. As the intensity of the fire does not occur in a standardized manner and affects the concrete in a random way, this situation is best portrayed when the tests are based on the transient temperature,
Publicado em: 2009
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15. Experimental study about the fire effect in short composite column of steel and concrete / Estudo experimental do efeito do fogo em pilares mistos de aço e concreto
The use of circular hollow steel filled with concrete as columns are of great importance in the structural area, because it allows steel tube and concrete working together, providing a greater capacity resistant and a longer fire exposure, in relation to the same materials analyzed separately. This work will provide technical information for understanding th
Publicado em: 2008
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16. Bone preservation: a tafonomic study of the human bones remains of the contry shell-mounds of the valley of the Ribeira de Iguape, SP / Preservação óssea: um estudo tafonômico dos remanescentes ósseos humanos dos sambaquis fluviais do vale do Ribeira de Iguape, SP
In Brazil, the archaeological sites known as "Sambaquis" - shell-mounds are geographically distributed in the coastal line and near by some rivers too. The taphonomic analyses are been applied to the study of the human bones recovered from the shell-mounds sites Capelinha, Moraes and Pavão XVI all them from the valley of the river Ribeira de Iguape, South o
Publicado em: 2008
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17. Análise da mudança de cor em concretos submetidos a altas temperaturas como indicativo de temperaturas alcançadas e da degradação térmica / Color Change Analysis in Concretes Exposed to High Temperatures as Indicative of Reached Temperatures and Thermal Degradation
A avaliação de uma estrutura danificada por incêndios usualmente inicia por observações visuais do concreto, incluindo sua mudança de cor. A mudança de cor observada no concreto exposto a altas temperaturas persiste após seu resfriamento, constituindo-se em uma ferramenta importante para uma avaliação preliminar do nível de deterioração do concr
Publicado em: 2007
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18. Aproveitamento de Lodo de Estação de Tratamento de Água em Cerâmica Vermelha
The water treatment stations (WTA) have been researching solutions for the recycling of the residue generated in the water treatment process this residue is called WTA mud. Presently, the adopted solutions are the releasing of the residue into sanitary landfills or into the sewer system. The red ceramics presents an enormous potential to contribute for the s
Publicado em: 2005
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19. Health hazards of firefighters: acute pulmonary effects after toxic exposures.
As part of an environmental monitoring and medical surveillance programme to evaluate potential health hazards from firefighting, complete baseline medical examinations were performed on a cohort of 77 firefighters. During a ten day study period, 37 follow up medical examinations were performed after exposure to fire to monitor any significant differences in
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20. Health hazards of fire fighters: exposure assessment.
There is growing concern over the detrimental health effects to firefighters produced by exposure to combustion byproducts of burning materials. To assess the types and levels of exposure encountered by firefighters during their routine occupational duties, members of the Buffalo Fire Department were monitored during firefighting activities with personal, po
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21. Accidental exposure to isocyanate fumes in a group of firemen.
A total of 35 firemen involved in fighting a fire in a factory in which polyurethane foam was made were exposed to fumes of toluene di-isocyanate from two large storage tanks which were damaged during the fire, resulting in massive spillage. Most of the men experienced symptoms during the fire or during the three weeks after it. The symptoms were mainly gast
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22. Pulmonary function in firefighters: acute changes in ventilatory capacity and their correlates.
A group of 39 firefighters was examined during routine firefighing duty. Following smoke exposure the average decrease in one-second forced expiratory volume (FEV1.0) was 0.05 litre (137 observations). This decline in FEV1.0 was related to the severity of smoke exposure as estimated by the firefighter and to the measured particulate concentration of the smok
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23. Thetford plastics fire, October 1991: the role of a preventive medical team in chemical incidents.
OBJECTIVES--To review the role of a medical team in the emergency management of a major polyvinyl chloride (PVC) fire in an urban area. METHODS--The district health authority's consultant in communicable disease control (CCDC) was requested to advise on the health impacts of a fire that consumed some 1000 tonnes of plastic, mainly PVC, over 72 hours and whic
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24. Transient increase of serum Clara cell protein (CC16) after exposure to smoke.
OBJECTIVES: Smoke inhalation is a well known cause of airways injury in firefighting personnel. The aim of this study was to evaluate whether toxic effects of smoke on the respiratory tract can be detected by measuring Clara cell protein (CC16), a recently described serum marker of lung function. METHODS: CC16 was measured by a sensitive latex immunoassay in