Effects Of Heat In Matter
Mostrando 1-12 de 22 artigos, teses e dissertações.
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1. Iron Cobaltite (FeCo2O4) Nanocatalysts for Water-Oxidation: Effects of Annealing Temperature on Catalytic Properties
The development of efficient, stable, and non-precious metal water oxidation catalysts (WOCs) is a matter of importance for sustainable energy research. In this work, iron cobaltite (FeCo2O4) nanoparticles were prepared by the coprecipitation method, and we present the effect of heat treatment (250, 350, 450, 650 and 900 °C) on the catalytic properties. Cat
Journal of the Brazilian Chemical Society. Publicado em: 2022
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2. Stabilization of Rice Bran in Broiler Feed with Natural and Synthetic Antioxidants and Heat Treatment
ABSTRACT The objective of this study was to evaluate different strategies for the oxidative stabilization of rice bran (RB) in the diet of broiler chickens using natural antioxidant additives, synthetic antioxidant additives and heat treatment on performance, breast meat quality and liver fat content and the nutrient digestibility coefficients. Furthermore,
Braz. J. Poult. Sci.. Publicado em: 20/12/2019
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3. Efeito de diferentes tempos de exposição ao calor e de linhagens sobre o rendimento de carcaça e a composição química de peito de frangos de corte
RESUMO Investigaram-se os efeitos de diferentes tempos de exposição ao calor sobre o rendimento de carcaça, cortes e vísceras comestíveis e a composição química da carne de peito de frangos de corte de duas linhagens. Foram alojados 560 pintos de corte da linhagem Cobb 500 Slow® e 560 da Hubbard Flex® em 32 boxes. A partir do 14º dia, eles foram d
Arq. Bras. Med. Vet. Zootec.. Publicado em: 2019-02
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4. Effects of heat stress on the physiological parameters and productivity of hair sheep in tropical and coastal environments
The experiment was carried out with sheep during the finishing phase in a partial confinement system to evaluate the following physiological parameters: rectal temperature (RT), respiratory rate (RR), heart rate (HR), productive performance and carcass characteristics. Fourteen uncastrated sheep with an average initial age of 90 days belonging to two genetic
R. Bras. Zootec.. Publicado em: 2014-10
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5. AlteraÃÃes fisiolÃgicas induzidas por estresses abiÃticos em plantas jovens de pinhÃo-manso / PHYSIOLOGICAL CHANGES INDUCED BY ABIOTIC STRESSES IN PHYSIC NUT YOUNG PLANTS
In this work were studied diverse physiological mechanisms, as the osmotic adjustment, photosynthesis, including gas exchange and chlorophyll fluorescence parameters, as well the oxidative responses in physic nuts submitted to different abiotic stresses as: salinity, drought and high temperature. The first experiment aimed to study the effects of increase of
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/10/2009
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6. Thermal boundary layer effects in aeronautical airfoils icing accretion. / Efeitos da camada limite térmica na formação de gelo em aerofólios de uso aeronáutico.
O modelo de avaliação da camada limite dinâmica e térmica foi implementado, no presente trabalho, em um código numérico para o cálculo do coeficiente de transferência de calor convectivo sobre aerofólios de uso aeronáutico com formação de gelo. Foram considerados, no modelo da camada limite turbulenta, os efeitos da rugosidade equivalente do grã
Publicado em: 2009
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7. Conservação pós-colheita do jiló em embalagens ativas / The post-harvest conservation of the giló Solanum gilo Raddi in active packages
The Solanum gilo Raddi (jiloeiro) belongs to the Solanaceae family. The immature fruits are light-green or dark-green colored, but become orangereddish when ripe. The flavor of the fruits in all cultivars are characteristically bitter, which is agreeable to some consumers, but limits their consumption by others . The giló S. gilo is considered a vegetable t
Publicado em: 2009
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8. Sustainable business: the concept of governance change - application a company in the petrochemical / Sustentabilidade empresarial: o conceito da governança climática aplicação a uma empresa do ramo de petroquímica
With vital significance, the greenhouse effect gases (GEG), as carbon dioxide and methane, among others, retain sun heat in the atmosphere. This fact avoids sun radiation from dissipating, without letting the Planet being warm enough to keep right conditions for live existence of Earth. However, mankind activities are increasing concentration of these gases
Publicado em: 2009
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9. Estudo comparativo entre faseolamina comercial e farinha de feijÃo como perspectiva ao tratamento da obesidade e do diabetes mellitus tipo 2. / Comparative study between commercial phaseolamine and bean flour as a perspective to the treatment of obesity and type 2 diabetes mellitus.
Use of plants of medicinal purposes represents a wide field of research. New therapeutic proposals need studies to evaluate the appropriate use as to posology, indication, limitations and risks of utilization. The search for new phytotherapeutic ones as an alternative to the traditional medicinal treatment of obesity and of the type 2 diabetes mellitus has b
Publicado em: 2008
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10. Effects of the reduction of dietary heat increment on the performance, carcass yield, and diet digestibility of broilers submitted to heat stress
This experiment aimed at verifying the effect of different diets and thermal environments on the performance, carcass yield, and diet digestibility of 21 to 42-day-old broilers. A total number of 288 21-day-old male Ross broilers were distributed in a 2 x 2 + 2 factorial arrangement, with six replicates, including the following factors: two environments (TNE
Revista Brasileira de Ciência Avícola. Publicado em: 2007-03
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11. Utilização do grão tostado de soja (Glicine max (L) Merril) na alimentação de vacas em lactação / Roasted soybeans (glycine max. (l) merril) for lactating dairy cows
Soybeans were roasted in an experimental roaster during 2 or 3 minutes either at 380 or 490 ºC air temperature and kept or not for 30 minutes under steeping. The heat treatment effects on soybeans were evaluated in a first trial through two different procedures: a) after 16 hours of an “in situ” ruminal incubation period, all heat treated soybeans showe
Publicado em: 2007
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12. Termodecomposição, estudos de carbonização e silicificação da matéria orgânica e corpos silicosos em ecossistemas terrestres no Brasil e na Antártica / Thermodecomposition, organic matter carbonization silicification studies and silica bodies in terrestrial ecosystems in Brazil and Antarctica
Soil organic matter (SOM) is highly heterogeneous in composition, which consists of components as different from each other as labile carbohydrates and recalcitrant aliphatic compounds. Mean residence time (MRT) of the various compounds comprising soil organic matter may range from a few minutes to thousands of years. This wide range is partly due to the soi
Publicado em: 2007