Solute
Mostrando 13-24 de 824 artigos, teses e dissertações.
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13. The Hydrogen Cold Work Peak in BCC Iron: Revisited, with First Principles Calculations and Implications for Hydrogen Embrittlement
We examine experimental and theoretical results on the cold-work (Snoek-Köster) peak in bcc Fe due to H using density functional theory (DFT). We reaffirm that Seeger’s interpretation of the H cold-work peak (Hcwp), involving motion of H with kinks on non-screw dislocations associated with the intrinsic-dislocation α peak, has experimental backing. Use o
Mat. Res.. Publicado em: 21/06/2018
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14. TRANSPORT PARAMETERS OF POTASSIUM FROM DIFFERENT SOURCES IN SOIL COLUMNS
ABSTRACT This study aimed to determine some transport parameters of potassium in soil columns by miscible displacement of effluent from a Sewage Treatment Plant (STP). This effluent was collected at different stages of treatment, and potassium chloride solutions were prepared with the same K pulse concentration as the effluent. They were used to conduct a mi
Eng. Agríc.. Publicado em: 2018-01
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15. The Effect of Heat Treatment on Dynamic Strain Aging Behaviour of AISI H10 Hot Work Tool Steel
Dynamic strain aging (DSA) behaviour of hot work tool steel (H10) was investigated under as- received (AR) and as-quenched (AQ) conditions. Hot tensile test was carried out in the temperatures of 25°C-700°C at a strain rate of 1x10-3s-1. The tensile properties indicated that AQ samples showed an increase in yield strength (YS) and ultimate tensile strength
Mat. Res.. Publicado em: 18/12/2017
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16. High Temperature Plastic Instability and Dynamic Strain Aging in the Tensile Behavior of AISI 316 Stainless Steel
The plastic instability in the stress-strain curve and work hardening of a type AISI 316 austenitic stainless steel was investigated in the high temperature range of 150°C to 800°C for two strain rates. The results indicate the occurrence of plastic instability and serrations between 200°C and 650°C with peaks in both the tensile strength and work harden
Mat. Res.. Publicado em: 23/10/2017
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17. AVALIAÇÃO DE DIFERENTES ROTAS DE ESFOLIAÇÃO LÍQUIDA PARA OBTENÇÃO DE NANOLAMELAS DE NITRETO DE BORO HEXAGONAL
Hexagonal boron nitride (h-BN), graphite analogous structure, has many interesting applications due to its excellent thermal, electrical and mechanical properties. In this study, different routes of liquid exfoliation using solvent and ultrasound were used to obtain two-dimensional (2D) nanosheets of h-BN. The efficiency of the exfoliative routes was evaluat
Quím. Nova. Publicado em: 2017-09
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18. Precipitation Evolution and Modeling of Growth Kinetics of L12-structured Al3Zr Particles in Al-0.22Zr and Al-0.32Zr (wt.%) Alloys Isothermally Aged
The microstructure and microhardness of isothermally aged Al-0.22Zr and Al-0.32Zr alloys were investigated. Peak microhardness occurred after aging at 650K for 100 h for both alloys and decreased slightly after aging at 400 h. Nanometer-scale spherical L12-structured Al3Zr precipitates were observed using Transmission Electron Microscopy, these presented r <
Mat. Res.. Publicado em: 31/08/2017
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19. Comportamiento reológico del aluminio AA6061 por efecto de las transformaciones de fase activadas térmicamente
ABSTRACT Aluminum alloys at room temperature not experience significant rheological behavior due to its coherent microstructural order, and its high compactness. However, the increase of the temperature generates stress fields, and thereby deformations, that alter the microstructural equilibrium, manifesting the rheological behavior as consequence of the int
Matéria (Rio J.). Publicado em: 22/06/2017
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20. MEASUREMENT AND CORRELATION OF THE MASS TRANSFER COEFFICIENT FOR A LIQUID-LIQUID SYSTEM WITH HIGH DENSITY DIFFERENCE
Abstract To investigate the mass transfer behavior of a liquid-liquid system with high density difference (∆ρ≈500 kg/m3), single drop experiments were performed by using the ternary chloroform-ethanol-water system. The mass transfer direction was from the dispersed phase to the continuous phase, while the aqueous phase was dispersed in chloroform to gen
Braz. J. Chem. Eng.. Publicado em: 2016-12
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21. Retention and Solute Transport Properties in Disturbed and Undisturbed Soil Samples
ABSTRACT Solute transport parameters can be determined in miscible displacement experiments, usually performed in columns with disturbed (sieved) soil samples. Experiments with undisturbed samples are uncommon, due to the difficulty of taking undisturbed samples at the size required for these experiments. Structural alteration of the disturbed material impli
Rev. Bras. Ciênc. Solo. Publicado em: 24/10/2016
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22. A novel homozygous mutation in the solute carrier family 12 member 3 gene in a Chinese family with Gitelman syndrome
Loss of function of mutated solute carrier family 12 member 3 (SLC12A3) gene is the most frequent etiology for Gitelman syndrome (GS), which is mainly manifested by hypokalemia, hypomagnesemia and hypocalciuria. We report the genetic characteristics of one suspicious Chinese GS pedigree by gene sequencing. Complete sequencing analysis of the SLC12A3 gene rev
Braz J Med Biol Res. Publicado em: 24/10/2016
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23. Osmotic dehydration of yellow melon using red grape juice concentrate
Abstract The main objectives of this work were to study the effect of fruit ripening on the melon osmotic dehydration at reduced pressure and to model the mass transfer of moisture during melon dehydration with grape juice concentrate and sucrose solution. The ripening level had no relevant effect over the physical characteristics of the final product, with
Food Sci. Technol. Publicado em: 07/07/2016
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24. PROPIEDADES VOLUMÉTRICAS DE LA DL-ALANINA EN SOLUCIONES ACUOSAS DE TETRAFLUOROBORATO DE 1-BUTIL, 3-METILIMIDAZOLIO A DIFERENTES TEMPERATURAS
Densities of DL-alanine in aqueous ionic liquid, 1-butyl, 3-methylimidazolium tetrafluoroborate solutions were measured from 283.15 to 313.15 K. The densities measured were used to calculate apparent molar volumes (VΦ), apparent molar volume limits (VΦ0), transfer molar volume limits (ΔVΦ0) and hydration number (NH). The behavior of (ΔVΦ0) was interpre
Quím. Nova. Publicado em: 2016-06