Heat Degree Hours
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. Mechanical Properties Analysis of Al2024 alloy Submitted to Different Aging Time and different Cold Plastic Deformation degree
Brazilian aeronautical industries report that, due to the high mechanical properties presented commercially, AA2024-T351 alloy presents fissures and non-homogeneous deformations during the mechanical processing. This work proposes a manufacturing process capable of increasing the ductility of the material to withstand tensions during processing and a subsequ
Mat. Res.. Publicado em: 10/07/2019
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2. Street forestry potential on the reduction of electric energy consumption: definition of tree areas in the city of SP, interviews, evaluation of environmental factors and heat degree hour estimation / Potencial da arborização viária na redução do consumo de energia elétrica: definição de três áreas na cidade de São Paulo - SP, aplicação de questionários, levantamento de fatores ambientais e estimativa de Graus-Hora de calor
The problematic to obtain and use energy in a conscious way in cities is a polemic issue nowadays. Frequently, urban areas have darker surfaces areas with less vegetation than neighbor areas. These differences affect the climate, the energy use and the quality of life. One of the action lines to promote an efficient use of electric energy in cities, through
Publicado em: 2007
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3. Evaluation of parameters associated with UV/EB cured clearcoats degradation used in outdoor environment / Avaliação da formação e degradação de filmes de vernizes curados por radiação ultravioleta e feixe de elétrons e expostos ao envelhecimento acelerado
The materials curable by ultraviolet (UV) or electron beam (EB) radiation such as inks, adhesives and coatings are reactive compounds made up of resin, monomer, photoinitiator and additives which undergo polymerization and crosslinking under irradiation producing thermoset products. This technology has been used in a great variety of industrial applications,
Publicado em: 2003
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4. Produção e caracterização de hidrolisado pancreatico de isolado proteico de soja para nutrição clinica
This work dealt with the pancreatic hydrolysis of soy protein isolates (SPI) for the production of a low molecular weight hydrolysis, as well as the biochemical and nutritional characterization of the product. The selected process was a discontinuous one at 37° C in deionized water and without pH adjustment in order to minimize concentration of inorganic io
Publicado em: 1992
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5. Effect of temperature cycling on the production of aflatoxin by Asperfillus parasiticus.
Aspergillus parasiticus (NRRL 2999) was grown under cycling temperature conditions on rice and nutmeat substrates. Under conditions of diurnal and nocturnal time-temperature sequencing, total heat input is an important factor of toxin production. When expressed in degree hours per day, thermal input becomes more definitive and provides a finite number, which
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6. Circadian Control of the Accumulation of mRNAs for Light- and Heat-Inducible Chloroplast Proteins in Pea (Pisum sativum L.) 1
The levels of the mRNAs for light-inducible, nuclear-coded chloroplast proteins vary rhythmically in pea (Pisum sativum L.) plants either grown in a dark-light cycle or under constant light conditions. This has been observed for the early light-inducible protein, the light-harvesting chlorophyll a/b protein, and the small subunit of the ribulose-1,5-bisphosp
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7. Resistance of pathogenic Naegleria to some common physical and chemical agents.
Resistance of pathogenic Naegleria to drying, low and high temperature, and two halogens was studied. Dying made trophozoites nonviable instantaneously and cysts nonviable in less than 5 min. Trophozoites degenerated in hours at temperatures below 10 degrees C and in minutes when frozen; cysts survived according to the equation th - t0/theta 1,440/1.122T (t0
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8. Killing of Caenorhabditis elegans by Pseudomonas aeruginosa used to model mammalian bacterial pathogenesis
We show that a single clinical isolate of the human opportunistic pathogen Pseudomonas aeruginosa (strain PA14), which previously was shown to be pathogenic in mice and plants, also kills Caenorhabditis elegans. The rate of PA14-mediated killing of C. elegans depends on the composition of the agar medium on which PA14 is grown. When PA14 is grown on minimal
The National Academy of Sciences.
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9. Superoxide-mediated clastogenesis and anticlastogenic effects of exogenous superoxide dismutase
Superoxide-mediated clastogenesis is characteristic for various chronic inflammatory diseases with autoimmune reactions and probably plays a role in radiation-induced clastogenesis and in the congenital breakage syndromes. It is consistently prevented by exogenous superoxide dismutase (SOD), but not by heat-inactivated SOD, indicating that the anticlast
The National Academy of Sciences of the USA.