Steam Treatment
Mostrando 13-24 de 44 artigos, teses e dissertações.
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13. Avaliação da influência da temperatura e ponto de orvalho no recozimento final de aços elétricos semiprocessados e totalmente processados / Evaluation of the influence of final annealing heat treatment temperature and dew point in semi-processed and fully processed electrical steels
Semi-processed electrical steels require annealing after processing in the motors manufactures to improve motors efficiency by reducing losses and increasing permeability. Annealing in fully processed electrical steel is performed to relax the residual stress and promote recovery or recrystallization of distorted parts. Commercial samples from different stee
Publicado em: 2010
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14. ESTUDO DAS ATIVIDADES ANTINOCICEPTIVA, ANTI-INFLAMATÓRIA E ANTIOXIDANTE DA SIDEROXYLON OBTUSIFOLIUM (SAPOTACEAE) / STUDY OF THE ANTINOCICEPTIVE, ANTI-INFLAMMATORY AND ANTIOXIDANT ACTIVITIES OF SIDEROXYLON OBTUSIFOLIUM (SAPOTACEAE).
Sideroxylon obtusifolium belongs to the family Sapotaceae. This study aimed to contribute to the scientific knowledge of the antinociceptive, anti-inflammatory and antioxidant properties of the steam bark of Sideroxylon obtusifolium (Roem. &Schult.) T.D. Penn, popularly known as quixabeira and used to treat pain and inflammation. The ethanol crude extract of
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/12/2009
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15. Atividade antifúngica dos óleos essenciais de espécies de Ocimum frente a cepas de Candida SPP. E Microsporum canis. / Antifungal activity of essential oils of Ocimum species against strains of Candida SPP. And Microsporum canis.
Due to high incidence of infections caused by fungi and resistance to antifungal agents of these microorganisms, the growing importance of studies on bioprospecting of natural products with antimicrobial properties and potential phytotherapic. This study aimed at finding new antifungal agents from the essential oils of Brazilian species Ocimum. The essential
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/07/2009
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16. Estudo das reações psicológicas do atleta de alto rendimento decorrentes de lesões de esforços repetitivos / Studies of psychological reactions Athlete High Performance Resulting from Repetitive Strain Injuries
This work has the objective of identify the reactions of the AAR (High Performance Athlete) injured by LER/DORT (Repetitive Strain Injury/Work Related Musculoskeletal Disorders) in face of the physiotherapy rehabilitation and conservative treatment (drug and non-surgical). It searches for relating the emotional conditions of the injured athlete related to th
Publicado em: 2009
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17. PurificaÃÃo, caracterizaÃÃo e determinaÃÃo de atividade coagulante da lectina de sementes de Moringa oleifera
Moringa oleifera is a tropical plant of great economic importance with several industrial and medicinal applications. Many parts of the plant are used and the seed extract is commonly employed for water purification to human consumption. Lectins are proteins or glycoproteins of nonimmune origin, which bind carbohydrates bioespecifically with agglutinant cell
Publicado em: 2009
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18. Pb2+ adsorption from aqueous solutions on activated carbons obtained from lignocellulosic residues
Activated carbons obtained from cane sugar bagasse (ACB), African palm pit (ACP) and sawdust (ACS) were prepared through an impregnated with HNO3 and thermal treatment in an atmosphere in N2/steam water at 1173 K. Adsorption isotherms of N2 at 77 K and of CO2 at 273 K were determined for the activated carbons for which surface area and pore volume values wer
Brazilian Journal of Chemical Engineering. Publicado em: 2008-03
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19. Efeito da ferro-oxidação a vapor antes e após operação de usinagem na resistência ao desgaste de ferro sinterizado / Effect of steam treatment before and after machining operation on wear resistance of sintered steel
Neste trabalho verificou-se o efeito da ferroxidação a vapor, aplicada antes e após operações de usinagem de acabamento final, na resistência ao desgaste de um ferro sinterizado, utilizado na fabricação de bielas usadas em mancais de deslizamento de compressor hermético. Ensaios micrográficos, de dureza e microdureza, ensaios de perfil e circularid
Publicado em: 2008
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20. Evaluation of pre-treatment and application of edible coatings in fruits drying / Avaliação de pre-tratamentos e aplicação de coberturas comestiveis na secagem de frutas
Most vegetables and fruits are highly perishable due to a high water conten, which makes it difficult to trade, since seasonality and distance between markets demand costly refrigerated storage and transportation. Increasing shelf life and availability throughout the year by processing reduces losses by marketing of fresh foods. This research aimed at evalua
Publicado em: 2008
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21. FREQÜÊNCIA DE IRRIGAÇÃO NO CULTIVO HIDROPÔNICO DA ALFACE
The objective of the work was to verify the influence of four intervals between the irrigations on the production of lettuce in hydroponics system and the retention of nutrient solution, besides more determining the best interval between irrigation at each time of cultivation. The experiments were carried out at four times during one year, in the nutrient fi
Publicado em: 2008
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22. Performance and feed efficiency of lactating cows supplemented with live yeast / DESEMPENHO E EFICIÃNCIA ALIMENTAR DE VACAS LEITEIRAS SUPLEMENTADAS COM LEVEDURA VIVA
Performance and nutrient utilization of dairy cows supplemented with Saccharomyces cerevisiae strain CNCM I-1077 (Lallemand SAS, France) were evaluated. Twenty Holsteins, averaging 143Â49 days in lactation at the beginning of the trial, formed ten blocks based on milk yield and were randomly assigned to a sequence of two treatments, in a cross-over design,
Publicado em: 2008
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23. Síntese e caracterização de catalisadores de LaNiO3 não suportados e suportados em Al2O3 e ZrO2 para a reforma a vapor do metano
Ionic oxides with ABO3 structure, where A represents a rare earth element or an alkaline metal and B is a transition metal from group VIII of the periodic table are potential catalysts for oxidation and good candidates for steam reforming reaction. Different methods have been considered for the synthesis of the oxide materials with perovskite structure to pr
Publicado em: 2007
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24. Síntese e avaliação de óxido de ferro suportado em carvão ativado polimérico como catalisador na desidrogenação do etilbenzeno
In this work, activated carbon were synthesized through carbonization of a polymer, containing iron oxides with and without copper. The precursor of activated carbon was a styrenedivinylbenzene copolymer (StyDVB) synthesized through suspension polymerization, in the presence of inert diluentes to obtain a macroporous structure. The resin was sulfonated with
Publicado em: 2007