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Mostrando 1-6 de 6 artigos, teses e dissertações.
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1. Implementation of acoustic materials to the VLS-1 Fairing - a sensitivity analysis using SEA
Satellite launchers are submitted to severe acoustic loads mainly during lift-off where SPL achieve, at the upper parts, values within the range of 140-160 dB. Such an excitation can damage embedded elements, if energy attenuation measures are not adopted. In view of managing the PLF vibro-acoustic environment, numerical techniques are applied to predict ela
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2012-03
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2. Incorporation of tannery waste into ceramic artifacts: an alternative to reduction of Environmental Liabilities / Incorporação de resíduo de curtume em artefatos cerâmicos: uma alternativa para redução de Passivo Ambiental / Incorporação de resíduo de curtume em artefatos cerâmicos: uma alternativa para redução de Passivo Ambiental / Incorporation of tannery waste into ceramic artifacts: an alternative to reduction of Environmental Liabilities
O presente estudo objetivou avaliar a influência da adição de um resíduo de curtume contendo elevada concentração de cromo, em uma massa argilosa comercial empregada na fabricação de cerâmicas estruturais, utilizando-se do processo de estabilização por solidificação, visando a redução de passivos ambientais gerados por esta tipologia industria
Publicado em: 2008
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3. Precipitacao de partículas e efeitos ionosféricos associados na região da anomalia geomagnética brasileira / Particle precipitation and associated ionospheric effects in the Brazilian Geomagnetic Anomaly region
The purpose of the present study is to examine the significance of quiet time ionization due to charged particle precipitation in the E-region over Brazilian Geomagnetic Anomaly. Ionosonde data of the sporadic E layer obtained for São José dos Campos (23°12 S, 45°51 W) and Cachoeira Paulista (22°42 S, 45°01 W) for a few months during the period 1973-74
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 05/12/1975
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4. Precipitacao de partículas e efeitos ionosféricos associados na região da anomalia geomagnética brasileira / Particle precipitation and associated ionospheric effects in the Brazilian Geomagnetic Anomaly region
O objetivo do presente estudo é examinar a importância da ionizaçãodurante tempo quieto devido a partículas carregadas precipitadas na região E sobre a Anomalia Geomagnética Brasileira. Foram usados dados de ionosonda para a camada E esporádica obtidos em São José dos Campos (23°12 S, 45°51 W) e Cachoeira Paulista (22°42 S, 45°01 W) para alguns
Publicado em: 1975
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5. Quantitative Studies on Fabrics as Disseminators of Viruses: V. Effect of Laundering on Poliovirus-Contaminated Fabrics
The effects of laundering with both anionic and nonionic detergents in cold, warm, and hot water on poliovirus-contaminated cotton sheeting, cotton terry cloth, washable wool shirting, wool blanketing, dull nylon jersey, and dacron/cotton shirting were determined. The fabrics were exposed to virus by aerosolization and direct contact (pipette) in separate st
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6. Quantitative Studies on Fabrics as Disseminators of Viruses: III. Persistence of Vaccinia Virus on Fabrics Impregnated with a Virucidal Agent
Eight compounds were tested in vitro for virucidal and antiviral activity against poliovirus and vaccinia virus. These compounds included five quaternary ammonium salts, two bromosalicylanilides, and neomycin sulfate, an antibiotic. None of the compounds was active against poliovirus, but virucidal activity was demonstrated against vaccinia virus with three