Controlled Cooling
Mostrando 13-24 de 62 artigos, teses e dissertações.
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13. Effect of Necking Behavior and of Gap Size on the Cooling Rate in Hot Stamping
In this study, a tailored die quenching experimental method using low closing pressures and an aluminum flat die was developed in order to evaluate the effects of the gap size on the cooling rate in the hot stamping process of a 22MnB5 steel grade. Initially, the necking behavior in hot stamping was investigated by deforming the specimens to different strain
Mat. Res.. Publicado em: 29/08/2016
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14. Estudo do comportamento termomecânico do aço API 5L X80 microligado ao Nb-Ti através de ensaios de torção a quente
AbstractThe controlled rolling of high strength low alloy steel has been widely used in the production of large diameter pipes for the oil and gas industry. The thermo-mechanical control process (TMCP) is used to maximize grain refinement and achieve both higher strength and toughness in the steels. In this sense, API 5L X80 micro-alloyed Nb-Ti steel was sub
Rem: Rev. Esc. Minas. Publicado em: 2015-06
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15. Analysis of the effect of renal excretory system cooling during thermal radiofrequency ablation in an animal model
Objective: Analysis of renal excretory system integrity and efficacy of radiofrequency ablation with and without irrigation with saline at 2 o C (SF2). Materials and Methods: The median third of sixteen kidneys were submitted to radiofrequency (exposition of 1 cm) controlled by intra-surgical ultrasound, with eight minutes cycles and median temperature of
Int. braz j urol.. Publicado em: 2014-01
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16. Study of aluminum nitride precipitation in Fe- 3%Si steel
For good performance of electrical steels it is necessary a high magnetic induction and a low power loss when submitted to cyclic magnetization. A fine dispersion of precipitates is a key requirement in the manufacturing process of Fe- 3%Si grain oriented electrical steel. In the production of high permeability grain oriented steel precipitate particles of c
Mat. Res.. Publicado em: 11/06/2013
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17. Qualidade de sementes de soja convencional e transgÃnica apÃs colheita e durante armazenamento em condiÃÃo ambiente e em resfriamento / Seed quality of conventional and transgenic soybean after harvest and storage in warehouse and cooling conditions
In a scenario where there is increasing production of soybeans, the quality of the storaging process is a factor of increasing concern, which requires the incorporation of technologies and production systems research in seed companies, adopting measures to ensure the viability of the seed during storage. This study aimed to evaluate the quality of seeds of f
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 04/04/2012
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18. Desenvolvimento de protocolo para criopreservação de folículos ovarianos de peixes usando vitrificação / Development of cryopreservation protocol for fish ovarian follicles using vitrification
Cryopreservation of fish embryos has been under investigation for over two decades; however every protocol tested so far has failed. The use of oocytes has more recently been reported as an alternative, nevertheless most of the studies were carried out using a single technique - controlled slow cooling - and success also remains elusive. Vitrification is an
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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19. Influência do resfriamento cutâneo na capacidade de reprodução de força isométrica do tornozelo em indivíduos saudáveis : estudo randomizado controlado cruzado Florianópolis - SC / Effects of skin cooling on isometric force replication in healthy ankles a cross-over randomized controlled trial
A análise da propriocepção do tornozelo é geralmente realizada através da capacidade de percepção do senso de posição e da velocidade e direção de movimento. Poucos estudos investigaram a propriocepção através da capacidade de reprodução de força, e em especial a influência do resfriamento tecidual cutâneo sobre esta forma de medida propri
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/12/2011
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20. Comparison between experimental data and numerical modeling for the natural circulation phenomenon
The study of natural circulation phenomenon has been object of crescent interest in scientific community in recent years. The new generation of compact nuclear reactors uses natural circulation of the fluid as a residual heat removal cooling system in case of accident or shutdown. The objective of this paper is to present a comparison between experimental da
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2011
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21. Effect of thermo-mechanical parameters on microstructure and mechanical properties of microalloyed steels
In this work the effects of controlled rolling parameters and adding of Niobium have been studied. In this order two steel grades with and without Niobium are planed and after steelmaking and continuous casting, rolling process are done. Then, laboratory investigations such as microstructure, mechanical properties and grain size analysis were performed Tensi
Brazilian Journal of Physics. Publicado em: 2010-12
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22. Non-surgical instrumentation associated with povidone-iodine in the treatment of interproximal furcation involvements
OBJECTIVE: The aim of this controlled clinical trial was to evaluate the effect of topically applied povidone-iodine (PVP-I) used as an adjunct to non-surgical treatment of interproximal class II furcation involvements. MATERIAL AND METHODS: Thirty-two patients presenting at least one interproximal class II furcation involvement that bled on probing with pro
Journal of Applied Oral Science. Publicado em: 2010-12
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23. Estudo teórico experimental da dinâmica de temperatura no interior de uma cavidade cilíndrica. / EXPERIMENTAL THEORETICAL STUDY OF DYNAMIC TEMPERATURE AT A CYLINDRICAL
Two methods for solving a direct heat diffusion problem inside a cylindrical enclosure are proposed, each one is applied with a linear and plus a non-linear solution. Besides, a experimental apparatus was developed for theoretical models validation purpose. Furthermore, as an application of the proposed system the inverse analysis (inverse problem) is used t
Publicado em: 2010
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24. Estudo do processo de cristalização de sacarose a partir de soluções provenientes de cana-de-açúcar por resfriamento controlado
Today, Brazil is the major producer and exporter of sugar in the world. In the last harvest 2008/2009, 31.5 millions tons were produced, of which 60% were exported providing a 40% of international market share. However, sugar is a product that has commercial difficulties, due to the hard restrictions, such as rates, subsidizes and technical barriers like the
Publicado em: 2009